Value of shares of common stock repurchased under the stock repurchase program over the life of the plan to date.

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Number of shares of common stock repurchased under the stock repurchase program over the life of the plan to date.

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Required minimum holding period of shares acquired under employee stock purchase plan.

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Number of shares available for issuance of stock based awards under current plan, returned from previous plans.

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Duration of each purchase period under employee stock purchase plan.

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Required number of service hours per week to qualify to participate in Employee Stock Purchase Plan.

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Value divided by the fair market value of a share of common stock on the first day of the purchase period. The result of which is used to derive the maximum number of shares that may be purchased by each participant in a purchase period, pursuant to the employee stock purchase program.

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Face amount or stated value per share of common stock.

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Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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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.

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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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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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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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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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

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

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

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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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Purchase price of common stock expressed as a percentage of its fair value.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Stockholders' Equity - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2021	May 31, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2012	Oct. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized	500,000		500,000	500,000
Preferred stock, par value	$ 0.01		$ 0.01	$ 0.01
Authorized to purchase of common stock under the stock repurchase program	$ 585,000,000.0		$ 585,000,000.0
Cumulative repurchase of common stock	16,700,000		16,700,000
Aggregate cost of repurchase of common stock			$ 494,900,000
Aggregate dividend declared for the year			$ 0
Option Outstanding and vested	114,000		114,000	292,000
Common stock, par value	$ 0.01		$ 0.01	$ 0.01
Stock options granted			0	0	0
Additional Authorized							$ 50,000,000.0
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future awards granted or issued under plans	200,000		200,000
Hours of work per week		20 hours
Duration of purchase periods under employee stock purchase plan	6 months
Holding period of stocks acquired under employee stock purchase plan	1 year
Value used to derive maximum number of shares per participant for employee stock purchase	$ 12,500
Employee maximum elected percentage reduction of compensation to purchase shares	10.00%		10.00%
Exercise price rate of fair value	85.00%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value for RSUs granted			$ 46.64	$ 35.15	$ 43.84
Number of shares received per restricted stock unit on lapse of restrictions and vesting condition met			1
Value of RSUs vested and converted to common stock			$ 11,500,000	$ 10,000,000.0	$ 8,200,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised			$ 2,200,000	$ 500,000	$ 1,500,000
Equity Incentive Plan [Member] \| Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized						6,350,000
Shares returned						793,275
Option expiration period			10 years
Future awards granted or issued under plans	1,700,000		1,700,000
Option Outstanding and vested	0		0
Equity Incentive Plan [Member] \| Equity Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vested period			4 years
Equity Incentive Plan [Member] \| Equity Plan [Member] \| Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Future awards granted or issued under plans	0		0
Equity Incentive Plan [Member] \| Equity Plan [Member] \| Non-Employee Directors [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vested period			1 year