Document and Entity Information - shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2017 |
Jul. 21, 2017 |
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| Document And Entity Information [Abstract] | ||
| Document Type | 10-Q | |
| Amendment Flag | false | |
| Document Period End Date | Jun. 30, 2017 | |
| Document Fiscal Year Focus | 2017 | |
| Document Fiscal Period Focus | Q2 | |
| Trading Symbol | MD | |
| Entity Registrant Name | MEDNAX, INC. | |
| Entity Central Index Key | 0000893949 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Large Accelerated Filer | |
| Entity Common Stock, Shares Outstanding | 93,569,153 |
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- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Trading symbol of an instrument as listed on an exchange. No definition available.
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- Definition Document And Entity Information. No definition available.
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- Definition Accounts payable and accrued liabilities excluding accrued income taxes current. No definition available.
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- Definition Long term debt and capital lease obligations excluding long term line of credit. No definition available.
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, not expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the noncurrent portion of the accrued liability on an undiscounted basis for malpractice claims (including general and professional liability). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Preferred stock, par value | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 1,000,000 | 1,000,000 |
| Preferred stock, issued | 0 | 0 |
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 200,000,000 | 200,000,000 |
| Common stock, shares issued | 93,480,000 | 93,718,000 |
| Common stock, shares outstanding | 93,480,000 | 93,718,000 |
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
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| Income Statement [Abstract] | ||||
| Net revenue | $ 842,944 | $ 771,759 | $ 1,678,541 | $ 1,524,383 |
| Operating expenses: | ||||
| Practice salaries and benefits | 561,418 | 484,625 | 1,133,803 | 976,436 |
| Practice supplies and other operating expenses | 30,872 | 26,992 | 58,668 | 54,038 |
| General and administrative expenses | 103,015 | 92,116 | 206,780 | 182,066 |
| Depreciation and amortization | 25,735 | 20,241 | 51,349 | 39,825 |
| Total operating expenses | 721,040 | 623,974 | 1,450,600 | 1,252,365 |
| Income from operations | 121,904 | 147,785 | 227,941 | 272,018 |
| Investment and other income | 365 | 410 | 941 | 1,028 |
| Interest expense | (18,535) | (15,058) | (36,287) | (29,521) |
| Equity in earnings of unconsolidated affiliate | 689 | 789 | 1,486 | 1,583 |
| Total non-operating expenses | (17,481) | (13,859) | (33,860) | (26,910) |
| Income before income taxes | 104,423 | 133,926 | 194,081 | 245,108 |
| Income tax provision | 40,725 | 51,601 | 75,692 | 95,012 |
| Net income | 63,698 | 82,325 | 118,389 | 150,096 |
| Net loss attributable to noncontrolling interests | 102 | 230 | ||
| Net income attributable to MEDNAX, Inc. | $ 63,698 | $ 82,427 | $ 118,389 | $ 150,326 |
| Net income attributable to MEDNAX, Inc.: | ||||
| Earnings per share, Basic | $ 0.69 | $ 0.89 | $ 1.28 | $ 1.63 |
| Earnings per share, Diluted | $ 0.69 | $ 0.89 | $ 1.27 | $ 1.62 |
| Weighted average common shares: | ||||
| Basic | 92,181 | 92,182 | 92,270 | 92,225 |
| Diluted | 92,812 | 92,945 | 92,977 | 93,018 |
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- Definition Practice salaries and benefits. No definition available.
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- Definition The aggregate amount of supplies and other operating expenses directly attributable to the physician practices. No definition available.
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of revenues recognized by the entity from providing services to in-patients, outpatients, residents in facilities owned or operated by the entity, from insurance premiums, or from goods provided or services performed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in noncurrent assets classified as other. No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in operating liabilities classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in prepaid expenses, and assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase (decrease) in the accrued liability for malpractice claims during an accounting period. No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability exceeding amount recognized at acquisition date. Includes, but is not limited to, measurement period adjustment and less amount paid soon after acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash (inflow) outflow from investing activities classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow from the acquisition of or improvements to long-lived, physical assets used to produce goods and services and not intended for resale, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation and New Accounting Pronouncements |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2017 | |||
| Accounting Policies [Abstract] | |||
| Basis of Presentation and New Accounting Pronouncements |
The accompanying unaudited Condensed Consolidated Financial Statements of the Company and the notes thereto presented in this Form 10-Q have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) applicable to interim financial statements, and do not include all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements. In the opinion of management, these financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results of interim periods. The financial statements include all the accounts of MEDNAX, Inc. and its consolidated subsidiaries (collectively, “MDX”) together with the accounts of MDX’s affiliated business corporations or professional associations, professional corporations, limited liability companies and partnerships (the “affiliated professional contractors”). Certain subsidiaries of MDX have contractual management arrangements with its affiliated professional contractors, which are separate legal entities that provide physician services in certain states and Puerto Rico. The terms “MEDNAX” and the “Company” refer collectively to MEDNAX, Inc., its subsidiaries and the affiliated professional contractors. The Company has a joint venture in which it owns a 37.5% economic interest. The Company accounts for this joint venture under the equity method of accounting because the Company exercises significant influence over, but does not control, this entity. On March 31, 2017, the Company sold its 75% economic interest in a second joint venture. See Note 5 for more information regarding the deconsolidation of this joint venture. The consolidated results of operations for the interim periods presented are not necessarily indicative of the results to be experienced for the entire fiscal year. In addition, the accompanying unaudited Condensed Consolidated Financial Statements and the notes thereto should be read in conjunction with the Consolidated Financial Statements and the notes thereto included in the Company’s most recent Annual Report on Form 10-K (the “Form 10-K”). Recently Adopted Accounting Pronouncements In March 2016, the accounting guidance related to various aspects of share-based payment transactions was amended, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. Under the new guidance, excess tax benefits and deficiencies are to be recognized as income tax benefits or expenses in the income statement as discrete items in the reporting period in which they occur instead of increases or decreases to shareholders’ equity. Excess tax benefits should be classified along with other income tax cash flows as operating activities. With regard to forfeitures, the entity may make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. This guidance became effective for the Company on January 1, 2017. The Company adopted this guidance prospectively for both the income statement and statement of cash flows, and the adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements. The Company continues to estimate forfeitures based on the number of awards that are expected to vest. New Accounting Pronouncements In January 2017, the accounting guidance related to goodwill impairment was amended to remove step two of the impairment test that requires a hypothetical purchase price allocation in order to measure the amount of any impairment. Under the new guidance, only a single-step quantitative test is required and any goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value. The new guidance does not amend the optional alternative to perform a qualitative assessment to determine if a quantitative goodwill impairment test is necessary. This guidance will become effective for the Company on January 1, 2020, with early adoption permitted. The Company does not believe the adoption of this guidance will have an impact on its Consolidated Financial Statements. In January 2017, the accounting guidance related to business combinations was amended to clarify the definition of a business. This guidance will become effective for the Company on January 1, 2018, with early adoption permitted. The Company does not believe the adoption of this guidance will have an impact on its Consolidated Financial Statements.
In August 2016, the accounting guidance related to the statement of cash flows was amended with the intent of reducing diversity in practice as to the classification of certain transactions in the statement of cash flows. This guidance will become effective for the Company on January 1, 2018, with early adoption permitted. The Company does not believe the adoption of this guidance will have a material impact on its Consolidated Financial Statements. In February 2016, accounting guidance related to leases was issued that will require an entity to recognize leased assets and the rights and obligations created by those leased assets on the balance sheet and to disclose key information about the entity’s leasing arrangements. This guidance will become effective for the Company on January 1, 2019, with early adoption permitted. The Company expects that the adoption of this guidance will have a material impact on its Consolidated Balance Sheets and related disclosures, resulting from the recognition of significant right of use assets and related liabilities primarily related to its operating lease arrangements for space in hospitals and certain other facilities for its business and medical offices. The Company’s evaluation of this guidance and its impacts will continue throughout 2017. In May 2014, the accounting guidance related to revenue recognition was amended to outline a single, comprehensive model for accounting for revenue from contracts with customers. The new guidance will become effective for the Company on January 1, 2018. The Company’s current revenue recognition policies for its significant revenue streams materially comply with the amended guidance; therefore, the Company does not believe the adoption of this guidance will have a material impact on its Consolidated Financial Statements. The Company’s evaluation of the impact the adoption of this guidance will have on its Consolidated Financial Statements will continue through the third quarter of 2017. |
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Cash Equivalents and Investments |
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| Investments, Debt and Equity Securities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash Equivalents and Investments |
As of June 30, 2017 and December 31, 2016, the Company’s cash equivalents consisted entirely of money market funds totaling $4.6 million and $12.4 million, respectively. Investments consist of municipal debt securities, federal home loan securities and certificates of deposit. Investments with remaining maturities of less than one year are classified as short-term investments. Investments classified as long-term have maturities of one year to seven years. The Company intends and has the ability to hold its held-to-maturity securities to maturity, and therefore carries such investments at amortized cost in accordance with the provisions of the accounting guidance for investments in debt and equity securities. Investments held at June 30, 2017 and December 31, 2016 are summarized as follows (in thousands):
Contractual maturities of long-term investments are summarized as follows (in thousands):
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for investments in certain debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2017 | |||
| Fair Value Disclosures [Abstract] | |||
| Fair Value Measurements |
In accordance with the accounting guidance for fair value measurements and disclosures, the Company carries its money market funds included in cash and cash equivalents at fair value. In accordance with the three-tier fair value hierarchy under this guidance, the Company determined the fair value using quoted market prices, a Level 1 input as defined under the accounting guidance for fair value measurements. At June 30, 2017 and December 31, 2016, the Company’s money market funds had a carrying amount of $4.6 million and $12.4 million, respectively. The Company also carries the cash surrender value of life insurance related to its deferred compensation arrangements at fair value. The investments underlying the life insurance contracts consist primarily of exchange-traded equity securities and mutual funds with quoted prices in active markets. In accordance with the three-tier fair value hierarchy, the Company determined the fair value using the cash surrender value of the life insurance, a Level 2 input as defined under the accounting guidance for fair value measurements. At June 30, 2017 and December 31, 2016, the Company’s cash surrender value of life insurance had a carrying amount of $17.3 million and $15.8 million, respectively. In addition, the Company carries its contingent consideration liabilities related to acquisitions at fair value. In accordance with the three-tier fair value hierarchy, the Company determined the fair value of its contingent consideration liabilities using the income approach with assumed discount rates and payment probabilities. The income approach uses Level 3, or unobservable inputs as defined under the accounting guidance for fair value measurements. At June 30, 2017 and December 31, 2016, the Company’s contingent consideration liabilities had a fair value of $15.4 million and $17.3 million, respectively. See Note 5 for more information regarding the Company’s contingent consideration liabilities. The carrying amounts of cash equivalents, short-term investments, accounts receivable and accounts payable and accrued expenses approximate fair value due to the short maturities of the respective instruments. The carrying values of long-term investments, line of credit, variable rate long-term debt and capital lease obligations approximate fair value. If the Company’s investments were measured at fair value, they would be categorized as Level 2 in the fair value hierarchy. If the Company’s line of credit and variable long-term debt were measured at fair value, they would be categorized as Level 2 in the fair value hierarchy. The estimated fair value of the Company’s 5.25% senior unsecured notes due 2023 was $774.4 million and $773.4 million, at June 30, 2017 and December 31, 2016, respectively, and was estimated using trading prices as of June 30, 2017 and December 31, 2016 as Level 2 inputs to estimate fair value. |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Accounts Receivable |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Receivables [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounts Receivable |
Accounts receivable, net consists of the following (in thousands):
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| X | ||||||||||
- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Business Acquisitions |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Combinations [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Acquisitions |
During the six months ended June 30, 2017, the Company completed the acquisition of six physician group practices, including two maternal-fetal medicine practices, one radiology practice, one neonatology practice, one pediatric multi-specialty practice and one pediatric ophthalmology practice. The acquisition-date fair value of the total consideration for the six acquisitions was $115.2 million. Approximately $113.7 million was paid in cash, $0.5 million was paid by issuing 8,804 shares of the Company’s common stock and $1.0 million was recorded as accrued purchase consideration within other current liabilities. These acquisitions expanded the Company’s national network of physician practices, including the Company’s first acquisition of a radiology physician group practice. The Company expects to improve the results of physician practices through improved managed care contracting, improved collections and identification of growth initiatives, as well as operating and cost savings based on the significant infrastructure it has developed. With respect to the Company’s initial acquisition of a radiology physician practice, the Company believes that it brings a unique value proposition to radiology physician groups, in that the Company can provide not only practice support, but also teleradiology capabilities that can enhance a physician group’s efficiency, provide subspecialty access and help them grow and remain competitive. In addition, the Company believes that radiology physician group practice physicians can complement the staffing needs for its teleradiology services business during certain times, such as nights and weekends, when such physicians are not providing services at their practices. The 8,804 shares of the Company’s common stock issued as a component of the purchase consideration for an acquisition completed during the first quarter of 2017 had an acquisition-date fair value of $0.5 million. The fair value of such shares was determined using the closing price on the New York Stock Exchange of the Company’s common stock less a discount for lack of marketability, reflecting a three year contractual restriction on the disposition or assignment of such common stock. The Company’s preliminary allocation of purchase price for the six acquisitions is as follows (in thousands):
Other intangible assets consist primarily of physician and hospital agreements. The Company recorded provisional amounts for certain assets acquired during the six months ended June 30, 2017. Any adjustment for these assets will be recorded during the measurement period and is not expected to be material. The Company expects that $47.6 million of the goodwill recorded during the six months ended June 30, 2017 will be deductible for tax purposes. In addition, during the six months ended June 30, 2017, the Company paid $2.3 million for contingent consideration related to certain prior-period acquisitions, of which all but the accretion recorded during 2017 was accrued as of December 31, 2016. In connection with a certain prior period acquisition, the Company recorded an increase in deferred tax liabilities of $0.5 million with a corresponding increase in goodwill of $0.5 million resulting from the finalization of certain income tax acquisition accounting. On March 31, 2017, the Company sold its 75% economic interest in a joint venture that was previously consolidated. The deconsolidation and removal of 100% of the carrying value of the joint venture’s net assets resulted in a gain on sale that was not material. |
| X | ||||||||||
- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Accounts Payable and Accrued Expenses |
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| Payables and Accruals [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounts Payable and Accrued Expenses |
Accounts payable and accrued expenses consist of the following (in thousands):
The net decrease in accrued salaries and bonuses of $86.9 million from December 31, 2016 to June 30, 2017 is primarily due to the payment of performance-based incentive compensation, principally to the Company’s physicians, partially offset by performance-based incentive compensation accrued during the six months ended June 30, 2017. A majority of the Company’s payments for performance-based incentive compensation is paid annually during the first quarter. |
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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Common and Common Equivalent Shares |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common and Common Equivalent Shares |
Basic net income per common share is calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share is calculated by dividing net income by the weighted average number of common and potential common shares outstanding during the period. Potential common shares consist of outstanding restricted stock and stock options and is calculated using the treasury stock method. In the first quarter of 2017, the Company adopted new accounting guidance that no longer permits the Company to include the assumed excess tax benefits related to the potential exercise or vesting of its stock-based awards in the treasury stock method computation. The impact on the weighted average number of common and common equivalent shares outstanding from excluding such assumed excess tax benefits for the three and six months ended June 30, 2017 was not material. See Note 1 for additional information on the adoption of the new accounting guidance. The calculation of shares used in the basic and diluted net income per common share calculation for the three and six months ended June 30, 2017 and 2016 is as follows (in thousands):
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Stock Incentive Plans and Stock Purchase Plans |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2017 | |||
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||
| Stock Incentive Plans and Stock Purchase Plans |
The Company’s Amended and Restated 2008 Incentive Compensation Plan, as amended (the “Amended and Restated 2008 Incentive Plan”) provides for grants of stock options, stock appreciation rights, restricted stock, deferred stock, and other stock-related awards and performance awards that may be settled in cash, stock or other property. Under the Amended and Restated 2008 Incentive Plan, options to purchase shares of common stock may be granted at a price not less than the fair market value of the shares on the date of grant. The options must be exercised within 10 years from the date of grant and generally become exercisable on a pro rata basis over a three-year period from the date of grant. The Company issues new shares of its common stock upon exercise of its stock options. Restricted stock awards generally vest over periods of three years upon the fulfillment of specified service-based conditions and in certain instances performance-based conditions. The Company recognizes compensation expense related to its restricted stock awards ratably over the corresponding vesting periods. During the six months ended June 30, 2017, the Company granted 521,621 shares of restricted stock to its employees and non-employee directors under the Amended and Restated 2008 Incentive Plan. At June 30, 2017, the Company had 3.5 million shares available for future grants and awards under its Amended and Restated 2008 Incentive Plan. Under the Company’s 1996 Non-Qualified Employee Stock Purchase Plan, as amended (the “ESPP”), employees are permitted to purchase the Company’s common stock at 85% of market value on January 1st, April 1st, July 1st and October 1st of each year. Under the Company’s 2015 Non-Qualified Stock Purchase Plan (the “SPP”), certain eligible non-employee service providers are permitted to purchase the Company’s common stock at 90% of market value on January 1st, April 1st, July 1st and October 1st of each year. Each of the ESPP and the SPP provide for the issuance of an aggregate of 2.6 million shares of the Company’s common stock less the number of shares of common stock purchased under the other plan. In accordance with the provisions of the accounting guidance for stock-based compensation, the Company recognizes stock-based compensation expense for the discount received by participating employees and non-employee service providers. During the six months ended June 30, 2017, 172,291 shares in aggregate were issued under the ESPP and SPP. At June 30, 2017, the Company had approximately 2.1 million shares in aggregate reserved for issuance under the ESPP and SPP.
During the three and six months ended June 30, 2017 and 2016, the Company recognized $7.3 million and $14.8 million, and $8.3 million and $17.2 million, respectively, of stock-based compensation expense. |
| X | ||||||||||
- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Common Stock Repurchase Program |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2017 | |||
| Text Block [Abstract] | |||
| Common Stock Repurchase Program |
In July 2013, the Company’s Board of Directors authorized the repurchase of shares of the Company’s common stock up to an amount sufficient to offset the dilutive impact from the issuance of shares under the Company’s equity compensation programs. The share repurchase program allows the Company to make open market purchases from time-to-time based on general economic and market conditions and trading restrictions. The repurchase program also allows for the repurchase of shares of the Company’s common stock to offset the dilutive impact from the issuance of shares, if any, related to the Company’s acquisition program. During the six months ended June 30, 2017, the Company repurchased 1.0 million shares of its common stock for $70.2 million, inclusive of 38,257 shares withheld to satisfy minimum statutory withholding obligations of $2.1 million in connection with the vesting of restricted stock during the three months ended June 30, 2017. The shares repurchased by the Company during the first quarter of 2017 completed the repurchases under the program with respect to issuances of shares under the Company’s equity compensation programs during 2017. The Company intends to utilize various methods to effect any future share repurchases, including, among others, open market purchases and accelerated share repurchase programs. The amount and timing of repurchases will depend upon several factors, including general economic and market conditions and trading restrictions. |
| X | ||||||||||
- Definition Entire disclosure of common stock repurchases. No definition available.
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| X | ||||||||||
- References No definition available.
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Commitments and Contingencies |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2017 | |||
| Commitments and Contingencies Disclosure [Abstract] | |||
| Commitments and Contingencies |
The Company expects that audits, inquiries and investigations from government authorities and agencies will occur in the ordinary course of business. Such audits, inquiries and investigations and their ultimate resolutions, individually or in the aggregate, could have a material adverse effect on the Company’s business, financial condition, results of operations, cash flows and the trading price of its common stock. The Company has not included an accrual for these matters as of June 30, 2017 in its Condensed Consolidated Financial Statements, as the variables affecting any potential eventual liability depend on the currently unknown facts and circumstances that arise out of, and are specific to, any particular future audit, inquiry and investigation and cannot be reasonably estimated at this time. In the ordinary course of business, the Company becomes involved in pending and threatened legal actions and proceedings, most of which involve claims of medical malpractice related to medical services provided by the Company’s affiliated physicians. The Company’s contracts with hospitals generally require the Company to indemnify them and their affiliates for losses resulting from the negligence of the Company’s affiliated physicians. The Company may also become subject to other lawsuits which could involve large claims and significant costs. The Company believes, based upon a review of pending actions and proceedings, that the outcome of such legal actions and proceedings will not have a material adverse effect on its business, financial condition, results of operations, cash flows and the trading price of its securities. The outcome of such actions and proceedings, however, cannot be predicted with certainty and an unfavorable resolution of one or more of them could have a material adverse effect on the Company’s business, financial condition, results of operations, cash flows and the trading price of its securities. Although the Company currently maintains liability insurance coverage intended to cover professional liability and certain other claims, the Company cannot assure that its insurance coverage will be adequate to cover liabilities arising out of claims asserted against it in the future where the outcomes of such claims are unfavorable. With respect to professional liability risk, the Company generally self-insures a portion of this risk through its wholly owned captive insurance subsidiary. Liabilities in excess of the Company’s insurance coverage, including coverage for professional liability and certain other claims, could have a material adverse effect on the Company’s business, financial condition, results of operations, cash flows and the trading price of its securities. |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation and New Accounting Pronouncements (Policies) |
6 Months Ended |
|---|---|
Jun. 30, 2017 | |
| Accounting Policies [Abstract] | |
| Recently Adopted Accounting Pronouncements | Recently Adopted Accounting Pronouncements In March 2016, the accounting guidance related to various aspects of share-based payment transactions was amended, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. Under the new guidance, excess tax benefits and deficiencies are to be recognized as income tax benefits or expenses in the income statement as discrete items in the reporting period in which they occur instead of increases or decreases to shareholders’ equity. Excess tax benefits should be classified along with other income tax cash flows as operating activities. With regard to forfeitures, the entity may make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. This guidance became effective for the Company on January 1, 2017. The Company adopted this guidance prospectively for both the income statement and statement of cash flows, and the adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements. The Company continues to estimate forfeitures based on the number of awards that are expected to vest. |
| New Accounting Pronouncements | New Accounting Pronouncements In January 2017, the accounting guidance related to goodwill impairment was amended to remove step two of the impairment test that requires a hypothetical purchase price allocation in order to measure the amount of any impairment. Under the new guidance, only a single-step quantitative test is required and any goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value. The new guidance does not amend the optional alternative to perform a qualitative assessment to determine if a quantitative goodwill impairment test is necessary. This guidance will become effective for the Company on January 1, 2020, with early adoption permitted. The Company does not believe the adoption of this guidance will have an impact on its Consolidated Financial Statements. In January 2017, the accounting guidance related to business combinations was amended to clarify the definition of a business. This guidance will become effective for the Company on January 1, 2018, with early adoption permitted. The Company does not believe the adoption of this guidance will have an impact on its Consolidated Financial Statements.
In August 2016, the accounting guidance related to the statement of cash flows was amended with the intent of reducing diversity in practice as to the classification of certain transactions in the statement of cash flows. This guidance will become effective for the Company on January 1, 2018, with early adoption permitted. The Company does not believe the adoption of this guidance will have a material impact on its Consolidated Financial Statements. In February 2016, accounting guidance related to leases was issued that will require an entity to recognize leased assets and the rights and obligations created by those leased assets on the balance sheet and to disclose key information about the entity’s leasing arrangements. This guidance will become effective for the Company on January 1, 2019, with early adoption permitted. The Company expects that the adoption of this guidance will have a material impact on its Consolidated Balance Sheets and related disclosures, resulting from the recognition of significant right of use assets and related liabilities primarily related to its operating lease arrangements for space in hospitals and certain other facilities for its business and medical offices. The Company’s evaluation of this guidance and its impacts will continue throughout 2017. In May 2014, the accounting guidance related to revenue recognition was amended to outline a single, comprehensive model for accounting for revenue from contracts with customers. The new guidance will become effective for the Company on January 1, 2018. The Company’s current revenue recognition policies for its significant revenue streams materially comply with the amended guidance; therefore, the Company does not believe the adoption of this guidance will have a material impact on its Consolidated Financial Statements. The Company’s evaluation of the impact the adoption of this guidance will have on its Consolidated Financial Statements will continue through the third quarter of 2017. |
| X | ||||||||||
- Definition Recently adopted accounting pronouncements policy. No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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Cash Equivalents and Investments (Tables) |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Investments, Debt and Equity Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Investments | Investments held at June 30, 2017 and December 31, 2016 are summarized as follows (in thousands):
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| Schedule of Contractual Maturities of Long-Term Investments | Contractual maturities of long-term investments are summarized as follows (in thousands):
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- Definition Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. No definition available.
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- References No definition available.
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Accounts Receivable (Tables) |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Receivables [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accounts Receivable, Net | Accounts receivable, net consists of the following (in thousands):
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- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Business Acquisitions (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Combinations [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Company's Preliminary Allocation of Purchase Price | The Company’s preliminary allocation of purchase price for the six acquisitions is as follows (in thousands):
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Accounts Payable and Accrued Expenses (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Payables and Accruals [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accounts Payable and Accrued Expenses | Accounts payable and accrued expenses consist of the following (in thousands):
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- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. No definition available.
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Common and Common Equivalent Shares (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Calculation of Shares Used in Basic and Diluted Net Income Per Share | The calculation of shares used in the basic and diluted net income per common share calculation for the three and six months ended June 30, 2017 and 2016 is as follows (in thousands):
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- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation and New Accounting Pronouncements - Additional Information (Detail) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Jun. 30, 2017 |
|
| Basis Of Presentation [Line Items] | ||
| Sale of minority interest percentage | 75.00% | |
| Unnamed Corporate Joint Venture [Member] | ||
| Basis Of Presentation [Line Items] | ||
| Equity method ownership percentage in joint venture | 37.50% |
| X | ||||||||||
- Definition Basis Of Presentation [Line Items] No definition available.
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| X | ||||||||||
- Definition Sale of minority interest percentage. No definition available.
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| X | ||||||||||
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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Cash Equivalents and Investments - Additional Information (Detail) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2017 |
Dec. 31, 2016 |
|
| Cash Equivalents And Investments [Line Items] | ||
| Cash equivalents | $ 4.6 | $ 12.4 |
| Cash Equivalents [Member] | ||
| Cash Equivalents And Investments [Line Items] | ||
| Cash equivalents | $ 4.6 | $ 12.4 |
| Maximum [Member] | ||
| Cash Equivalents And Investments [Line Items] | ||
| Long-term investments maturity period, in years | 7 years | |
| Short-Term investments maturity period, in years | 1 year | |
| Minimum [Member] | ||
| Cash Equivalents And Investments [Line Items] | ||
| Long-term investments maturity period, in years | 1 year |
| X | ||||||||||
- Definition Cash equivalents and investments. No definition available.
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| X | ||||||||||
- Definition Long term investments maturity period. No definition available.
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| X | ||||||||||
- Definition Short term investment maturity period. No definition available.
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| X | ||||||||||
- Definition Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Cash Equivalents and Investments - Schedule of Investments (Detail) - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Schedule of Held-to-maturity Securities [Line Items] | ||
| Short-Term | $ 11,161 | $ 11,286 |
| Long-Term | 86,286 | 78,975 |
| Municipal Debt Securities [Member] | ||
| Schedule of Held-to-maturity Securities [Line Items] | ||
| Short-Term | 7,686 | 10,306 |
| Long-Term | 49,316 | 46,513 |
| Federal Home Loan Securities [Member] | ||
| Schedule of Held-to-maturity Securities [Line Items] | ||
| Short-Term | 2,250 | |
| Long-Term | 32,500 | 28,747 |
| Certificates of Deposit [Member] | ||
| Schedule of Held-to-maturity Securities [Line Items] | ||
| Short-Term | 1,225 | 980 |
| Long-Term | $ 4,470 | $ 3,715 |
| X | ||||||||||
- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, not expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Cash Equivalents and Investments - Schedule of Contractual Maturities of Long-Term Investments (Detail) - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||
| Due after one year through five years | $ 79,718 | $ 70,005 |
| Due after five years through seven years | 6,568 | 8,970 |
| Total | $ 86,286 | $ 78,975 |
| X | ||||||||||
- Definition Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the fifth through tenth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the next fiscal year through the fifth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, not expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Fair Value Measurements Disclosure [Line Items] | ||
| Money market funds carrying amount | $ 4.6 | $ 12.4 |
| Carrying amount of cash surrender value of life insurance | 17.3 | 15.8 |
| Contingent consideration liabilities related to acquisitions | 15.4 | 17.3 |
| 5.25% Senior Unsecured Notes Due 2023 [Member] | ||
| Fair Value Measurements Disclosure [Line Items] | ||
| Estimated fair value of notes | $ 774.4 | $ 773.4 |
| Debt instrument interest rate | 5.25% |
| X | ||||||||||
- Definition Fair Value Measurements Disclosure [Line Items] No definition available.
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| X | ||||||||||
- Definition The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. No definition available.
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| X | ||||||||||
- Definition Fair value portion of notes payable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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Accounts Receivable - Schedule of Accounts Receivable, Net (Detail) - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Receivables [Abstract] | ||
| Gross accounts receivable | $ 1,688,731 | $ 1,719,642 |
| Allowance for contractual adjustments and uncollectibles | (1,208,329) | (1,224,366) |
| Accounts receivable, net | $ 480,402 | $ 495,276 |
| X | ||||||||||
- Definition Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Business combination disposition or assignment restriction period. No definition available.
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| X | ||||||||||
- Definition Deconsolidation percentage. No definition available.
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| X | ||||||||||
- Definition Number of maternal-fetal medicine practices acquired. No definition available.
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| X | ||||||||||
- Definition Number of neonatology practices acquired. No definition available.
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| X | ||||||||||
- Definition Number of pediatric ophthalmology practices acquired. No definition available.
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| X | ||||||||||
- Definition Number of other pediatric subspecialty practices acquired. No definition available.
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| X | ||||||||||
- Definition Number of physician group practices acquired. No definition available.
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| X | ||||||||||
- Definition Number of radiology practices acquired. No definition available.
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| X | ||||||||||
- Definition Purchase consideration liability. No definition available.
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| X | ||||||||||
- Definition Sale of minority interest percentage. No definition available.
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| X | ||||||||||
- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Cash outflow representing an adjustment to the purchase price of a previous acquisition. No definition available.
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| X | ||||||||||
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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Business Acquisitions - Summary of Company's Preliminary Allocation of Purchase Price (Detail) - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Business Acquisition [Line Items] | ||
| Goodwill | $ 3,948,339 | $ 3,845,157 |
| Physician Group [Member] | ||
| Business Acquisition [Line Items] | ||
| Current assets | 5,469 | |
| Property and equipment | 1,635 | |
| Other noncurrent assets | 1,295 | |
| Goodwill | 104,198 | |
| Other intangible assets | 9,456 | |
| Current liabilities | (167) | |
| Deferred income tax liabilities - long-term | (3,993) | |
| Other long-term liabilities | (2,671) | |
| Total assets and liabilities | $ 115,222 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Accounts Payable and Accrued Expenses - Schedule of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Payables and Accruals [Abstract] | ||
| Accounts payable | $ 30,365 | $ 28,474 |
| Accrued salaries and bonuses | 133,698 | 220,635 |
| Accrued payroll taxes and benefits | 62,815 | 67,830 |
| Accrued professional liabilities | 37,393 | 28,972 |
| Accrued contingent consideration | 6,335 | 6,566 |
| Accrued interest | 4,460 | 4,511 |
| Other accrued expenses | 44,985 | 50,950 |
| Accounts payable and accrued expenses, total | $ 320,051 | $ 407,938 |
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- Definition Accrued contingent consideration liability current. No definition available.
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- Definition Accrued payroll taxes and benefits current. No definition available.
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- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the current portion of the accrued liability on an undiscounted basis for malpractice claims (including general and professional liability). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Accounts Payable and Accrued Expenses - Additional Information (Detail) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2017
USD ($)
| |
| Payables and Accruals [Abstract] | |
| Net decrease in accrued salaries and bonuses | $ 86.9 |
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- Definition Increase decrease in accrued payroll taxes and benefits. No definition available.
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- References No definition available.
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Common and Common Equivalent Shares - Schedule of Calculation of Shares Used in Basic and Diluted Net Income Per Share (Detail) - shares shares in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Earnings Per Share [Abstract] | ||||
| Weighted average number of common shares outstanding | 92,181 | 92,182 | 92,270 | 92,225 |
| Weighted average number of dilutive common share equivalents | 631 | 763 | 707 | 793 |
| Weighted average number of common and common equivalent shares outstanding | 92,812 | 92,945 | 92,977 | 93,018 |
| Antidilutive securities not included in the diluted net income per common share calculation | 8 | 5 | 3 | |
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Purchase price of common stock expressed as a percentage of its fair value. No definition available.
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| X | ||||||||||
- Definition Number of shares issued during the period as a result of an employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Common Stock Repurchase Program - Additional Information (Detail) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2017
USD ($)
shares
| |
| Common Stock [Line Items] | |
| Repurchased common stock, shares | shares | 1,000,000 |
| Common stock repurchased | $ | $ 70.2 |
| Restricted Stock [Member] | |
| Common Stock [Line Items] | |
| Number of shares withheld to satisfy minimum statutory tax withholding obligations | shares | 38,257 |
| Amount withheld to satisfy minimum statutory tax withholding obligations | $ | $ 2.1 |
| X | ||||||||||
- Definition Common Stock [Line Items] No definition available.
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| X | ||||||||||
- Definition The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. No definition available.
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| X | ||||||||||
- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. No definition available.
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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