Income Taxes - Summary of Components of Income Tax Provision from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal									$ 30,651	$ 10,847	$ 15,164
State									7,702	4,447	742
Foreign									37,083	21,056	14,816
Current, Total									75,436	36,350	30,722
Deferred
Federal									(1,767)	14,538	(47,820)
State									785	503	(152)
Foreign									(2,730)	5,790	(3,607)
Deferred, Total									(3,712)	20,831	(51,579)
Income tax provision (benefit)	$ 10,624	$ 19,857	$ 21,313	$ 19,930	$ 7,834	$ 19,964	$ 14,113	$ 15,270	$ 71,724	$ 57,181	$ (20,857)