Amount approved to replenish the Company's Stock Repurchase Program.

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- Definition

Stockholders Equity [Line Items]

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No definition available.

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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.

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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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- Definition

Amount of stock repurchase plan authorized.

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No definition available.

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Amount remaining of a stock repurchase plan authorized.

+ References

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.

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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.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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Stockholders' Equity - Additional Information (Detail) - USD ($)		9 Months Ended
	May 27, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Aug. 02, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Stockholders Equity [Line Items]
Common stock, shares issued		94,433,197				94,044,203
Treasury stock, shares		16,260,248				15,790,463
Share Repurchase Program [Member]
Stockholders Equity [Line Items]
Share Repurchase Program, authorized amount		$ 250,000,000					$ 250,000,000
Stock Repurchase Program, number of shares repurchased	5,615,874	469,785	5,615,874
Stock Repurchase Program, replenishment amount							$ 150,000,000
Stock repurchases under Share Repurchase Program	$ 150,000,000	$ 12,400,000
Share Repurchase Program, remaining authorized repurchase amount		$ 237,600,000
Common Stock [Member]
Stockholders Equity [Line Items]
Common stock, shares issued		94,433,197	94,012,743	94,408,378	94,345,017	94,044,203		93,884,971	93,748,617	93,400,929
Number of unvested shares		115,100
Restricted Stock Units [Member]
Stockholders Equity [Line Items]
Number of unvested shares		3,072,615