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Income Taxes - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Effective tax rates	29.70%	(4.10%)	(117.10%)	0.60%

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- Definition

Effective tax rate continuing operations.

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- References

No definition available.

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