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Stockholders' Equity - Additional information (Detail) - USD ($) shares in Thousands, $ in Millions	1 Months Ended		3 Months Ended	9 Months Ended
	Aug. 31, 2021	May 31, 2021	Sep. 30, 2021	Sep. 30, 2021
Stockholders Equity Note [Abstract]
Repurchase shares of common stock	$ 50.0	$ 30.0	$ 30.0	$ 30.0
Stock repurchased, shares		952	400	1,300
Stock repurchased, value			$ 22.0	$ 56.0
Stock repurchase program, remaining authorized repurchase amount	$ 20.0
Stock repurchase program expiration date	Jul. 29, 2023

X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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X

- Definition

Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the YYYY-MM-DD format.

+ References

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

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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.

+ References

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- Definition

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.

+ References

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-Name Accounting Standards Codification
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