Income Taxes Income Taxes - Provision for (Benefit from) Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal
Current	$ 76,528	$ 35,788	$ 91,214
Deferred	1,235	(5,989)	15,724
Total federal income tax expense	77,763	29,799	106,938
State
Current	9,169	9,568	2,580
Deferred	209	(3,274)	2,677
Total state tax expense	9,378	6,294	5,257
Foreign
Current	28,364	22,753	15,285
Deferred	(3,158)	(1,123)	2,682
Total foreign tax expense	25,206	21,630	17,967
Provision for income taxes	$ 112,347	$ 57,723	$ 130,162