Earnings Before Interest, Taxes, Depreciation, and Amortization, Goal Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Maximum Performance Achieved, Percentage of Targeted Shares Earned

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Performance Goal Threshold

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Number Of Performance Periods

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage Adjustment of Shares Earned, Total Shareholder Return in Top Quartile

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No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, Stock Price Trigger, Consecutive Term

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Share Price Threshold

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No definition available.

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- Definition

Amount of cost capitalized for award under share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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).

+ References

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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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

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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- Definition

Gross number of share options (or share units) granted during the period.

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

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Percentage of vesting of award under share-based payment arrangement.

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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.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Stock-based Compensation - Narrative (Details)		1 Months Ended	12 Months Ended
Stock-based Compensation - Narrative (Details)	Mar. 31, 2017	Mar. 31, 2016 $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 performancePeriod shares	Apr. 20, 2023 shares	Apr. 15, 2021 shares	Jun. 13, 2018 shares	May 01, 2015 shares	Sep. 23, 2013 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)							19,400	15,400	10,500	6,000
Number of options issued (in shares)			375,000	658,000
Stock-based compensation capitalized \| $			$ 0	$ 0	$ 0
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
1st Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value per option granted (in dollars per share) \| $ / shares			$ 20.64
2nd Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value per option granted (in dollars per share) \| $ / shares			$ 20.69
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued (in shares)			2,148,000	2,152,000
Vesting period			3 years
Vesting percentage			25.00%
Weighted-average fair value per option granted (in dollars per share) \| $ / shares			$ 31.55	$ 33.85	$ 28.23
Aggregate intrinsic value, vested \| $			$ 25,100,000	$ 20,200,000	$ 11,600,000
Granted (in shares)			1,333,000
RSUs \| New Century Health
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
RSUs \| Non-Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
RSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period for vesting			3 years
RSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period for vesting			4 years
RSUs \| 1st Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			33.00%
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued (in shares)			1,217,000	1,653,000
Vesting period				3 years
Weighted-average fair value per option granted (in dollars per share) \| $ / shares			$ 34.41
Granted (in shares)			808,000	500,000	500,000	300,000
Performance goal threshold					100.00%
Maximum performance achieved, percentage of targeted shares earned				250.00%		200.00%
Percentage adjustment of shares earned, total shareholder return in top quartile						10.00%
Number of performance period \| performancePeriod						2
PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
EBITDA, goal period						2 years
PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
EBITDA, goal period						3 years
PSUs \| 1st Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			50.00%
Risk-free interest rate			0.12%
Expected volatility rate			89.50%
Expected term			2 years
Expected dividend rate			0.00%
PSUs \| 2nd Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			50.00%
Risk-free interest rate			0.25%
Expected volatility rate			77.70%
Expected term			3 years
Expected dividend rate			0.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Vesting percentage			25.00%
Expiration period			10 years
Fair value of options vested \| $			$ 0.0	$ 600,000	$ 2,600,000
Intrinsic value of options exercised \| $			$ 6,900,000	$ 26,900,000	$ 16,300,000
Performance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options issued (in shares)			0	106,000
Granted (in shares)		300,000
Risk-free interest rate		1.83%
Expected volatility rate		65.00%
Expected term		10 years
Expected dividend rate		0.00%
Weighted-average fair value per option granted (in dollars per share) \| $ / shares		$ 6.68
Performance-based stock options \| Vest on March 1, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		50.00%
Performance-based stock options \| Vest on March 1, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		50.00%
Common Class A \| Performance-based stock options \| 1st Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Award vesting rights, share price threshold (in dollars per share) \| $ / shares		$ 13.35
Consecutive term		90 days
Common Class A \| Performance-based stock options \| 2nd Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Award vesting rights, share price threshold (in dollars per share) \| $ / shares		$ 16.43
Consecutive term		90 days
Common Class A \| Performance-based stock options \| 3rd Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Award vesting rights, share price threshold (in dollars per share) \| $ / shares		$ 19.51
Consecutive term		90 days
2011 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options issued (in shares)			4,800,000
2011 Plan \| Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued (in shares)				3,800,000
2011 Plan \| Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)											9,100,000
2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options issued (in shares)			2,800,000	2,800,000
2015 Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued (in shares)			7,300,000	6,300,000
2015 Plan \| Leveraged Stock Units (LSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued (in shares)			1,900,000	1,900,000
2015 Plan \| PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued (in shares)			2,300,000	1,500,000