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Income Taxes - Summary of Provision for Income Taxes and Effective Tax Rate from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Pretax income	$ 31,595	$ 21,382
Provision for income taxes	$ 6,407	$ 3,498
Effective rate	20.30%	16.40%

X

- Definition

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

+ References

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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