Income Taxes - Provision (Benefit) for Current and Deferred Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 5,520	$ 3,935	$ (3,153)
State	2,170	1,340	1,885
Foreign	68,837	95,404	113,315
Total current income tax expense	76,527	100,679	112,047
Deferred
Federal	(5,610)	(4,630)	422,397
State	68	(3,368)	38,819
Foreign	(15,761)	23,515	(19,929)
Total deferred income tax expense	(21,303)	15,517	441,287
Provision for income taxes	$ 55,224	$ 116,196	$ 553,334