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Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
(Benefit from) provision for from income taxes	$ (5,908)	$ 3,126	$ (6,849)	$ 1,634
Effective tax rate	13.00%	24.90%	7.20%	77.50%
Gross unrecognized tax benefits	$ 7,800		$ 7,800		$ 7,200
Unrecognized tax benefits that would impact effective tax rate	$ 7,800		$ 7,800

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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