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- Definition

Liability Awards Granted

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Liability Awards Settled During Period

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- Definition

Share-based Compensation Arrangement by Share-basd Payment Award, Equity Instruments Other than Options, Market Value Share Count Adjustment for Liability Awards

+ References

No definition available.

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ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsMarketValueShareCountAdjustmentWeightedAverageGrantDateFairValue

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested and Expected to Vest

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested and Expected to Vest, Weighted Average Grant Date Fair Value

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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.

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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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Section 50

-Paragraph 1

-Subparagraph (b)

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

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No definition available.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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No definition available.

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Unrecognized cost of unvested share-based compensation awards.

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-Name Accounting Standards Codification

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-SubTopic 10

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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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).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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-SubTopic 10

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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-Paragraph 2

-Subparagraph (c)(2)(iii)(2)

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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-Subparagraph (c)(2)(iii)(2)

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- Definition

Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

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No definition available.

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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.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

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- Definition

Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-Subparagraph (c)(1)(i)-(ii)

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- 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.

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No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Stock-based Compensation: Incentive Award Plan and Employee Stock Purchase Plan (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date	15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 24.88
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 7,500,000	$ 6,000,000	$ 3,700,000
Compensation expense charged to operations related to stock-based compensation	16,199,000.000	14,411,000.000	9,706,000.000
Income tax benefit for stock-based compensation arrangements	4,700,000	5,100,000	3,500,000
Shares available for issuance	3,234,230
Options outstanding (in shares)	694,881	859,945
Document Fiscal Year Focus	2014
2010 Employee Stock Purchase Plan (ESPP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	3,500,000
Compensation expense charged to operations related to stock-based compensation	1,756,000	1,195,000	755,000
Weighted-average grant-date fair value of options granted	$ 8.35	$ 7.16	$ 3.53
Employee stock purchase plan (in shares)	207,805	203,200	154,934
Award with service conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	705,373	972,364
Share-based awards, grants in period	216,290
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(436,251)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(47,030)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested and Expected to Vest	609,656
Awards with performance and service conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	381,188	394,874
Share-based awards, grants in period	234,846
Share-based Compensation Arrangement by Share-basd Payment Award, Equity Instruments Other than Options, Market Value Share Count Adjustment for Liability Awards	(12,826)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(230,837)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(4,869)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested and Expected to Vest	355,782
Liability Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense charged to operations related to stock-based compensation	500,000	1,000,000	1,700,000
Shares vested	(50,000)
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	1,453,000	2,500,000	2,000,000	1,852,000
Liability Awards Granted	500,000	1,000,000	1,694,000
Liability Awards Settled During Period	(1,497,000)	(500,000)	(1,546,000)
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards expense, service period	1 year 4 months 24 days
Weighted-average grant-date fair value of options granted			$ 10.34
Total intrinsic value of options exercised	3,900,000	7,600,000	9,700,000
Unrecognized compensation expense	400,000
Restricted Stock Units and Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,086,561	1,367,238
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value		$ 18.90
Share-based awards, grants in period	451,136
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 18.44
Shares surrendered by the employees to the Company for payment of minimum tax withholding obligations	202,284
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 33.66	$ 26.17	$ 16.01
Share-based awards expense, service period	1 year 7 months 6 days
Total intrinsic value of options exercised	21,300,000	15,000,000	13,700,000
Unrecognized compensation expense	14,900,000
Share-based Compensation Arrangement by Share-basd Payment Award, Equity Instruments Other than Options, Market Value Share Count Adjustment for Liability Awards	(12,826)
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsMarketValueShareCountAdjustmentWeightedAverageGrantDateFairValue	$ 33.19
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(667,088)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(51,899)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures	24.42
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested and Expected to Vest	965,438
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested and Expected to Vest, Weighted Average Grant Date Fair Value	$ 25.21
Director [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	0
Physician Segment [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense charged to operations related to stock-based compensation	600,000	900,000	600,000
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense charged to operations related to stock-based compensation	$ 15,600,000	$ 13,500,000	$ 9,100,000