Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax provision	$ 13,206	$ 1,401
Liability for income taxes associated with uncertain tax positions	8,512
Net amount of unrecognized tax benefit related to uncertain tax positions that would impact, if recognized, effective income tax rate	1,337
Unrecognized tax benefit liabilities decrease	150
Increase in gross liability for uncertain tax positions	256
Provision expense (benefit) for income taxes related to interest and penalties	47	$ 24
Income tax accrued for payment of interest and penalties	$ 1,364		$ 1,317