Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax provision	$ 7,541	$ 4,795	$ 12,484	$ 8,165
Effective income tax rate	50.90%	37.10%	57.50%	30.70%