Expire period of Right agreement.

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- Definition

Preferred stock exercise price per right.

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- Definition

The increased amount authorized by the entity's Board of Directors to the existing stock repurchase plan.

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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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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 505
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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- Definition

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

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-Name Accounting Standards Codification
-Topic 210
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- Definition

Amount of stock repurchase plan authorized.

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- Definition

Amount remaining of a stock repurchase plan authorized.

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Stockholders' Equity - Additional Information (Detail) - USD ($)			3 Months Ended
	Oct. 27, 2021	Apr. 22, 2020	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2020	Jul. 24, 2019	Sep. 06, 2013
Class Of Stock [Line Items]
Preferred stock, par value			$ 0.01						$ 0.01
Expire period of Right agreement		Apr. 21, 2021
Dividend per share, declared			$ 0.02	$ 0.02	$ 0.02	$ 0.02	$ 0.02	$ 0.04
2013 program
Class Of Stock [Line Items]
Increase of the authorization under the stock buyback program										$ 250,000,000
Remaining amount approved for repurchases under stock buyback program			$ 130,000,000
2013 program \| Maximum
Class Of Stock [Line Items]
Amount approved for repurchases under stock buyback program											$ 200,000,000
Subsequent Event \| Dividend Declared
Class Of Stock [Line Items]
Dividend declaration date	Oct. 27, 2021
Dividend per share, declared	$ 0.02
Dividend payment date	Dec. 16, 2021
Dividend record date	Dec. 02, 2021
Series A Junior Participating Preferred Stock
Class Of Stock [Line Items]
Preferred stock, par value		$ 0.01
Preferred stock, exercise price per right		$ 17.00