Face amount per share of no-par value common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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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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No definition available.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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No definition available.

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- Definition

Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Stockholders' Equity - Additional Information (Detail) - $ / shares		12 Months Ended
	Sep. 14, 2020	Dec. 31, 2020	Jul. 29, 2020	Apr. 29, 2020	Feb. 19, 2020	Dec. 31, 2019
Equity, Class of Treasury Stock [Line Items]
Common stock, par value		$ 0.01	$ 0.01
Common stock, shares authorized		180,000,000		180,000,000	120,000,000	180,000,000
Description of stock split	two-for-one stock split
Stock Repurchase Programs [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchase program, authorized shares		11,600,000
Number of shares repurchased by the Company		2,800,000