Income Taxes - Details of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current
Ireland	$ 33,431	$ 28,045	$ 26,420
United States	95,143	135,608	140,061
Other	40,403	14,198	9,918
Total current tax expense	168,977	177,851	176,399
Deferred, exclusive of other components below
Ireland	(12,408)	(19,709)	(7,776)
United States	(41,337)	(27,559)	(9,120)
Other	(34,545)	(19,108)	(13,720)
Total deferred, exclusive of other components	(88,290)	(66,376)	(30,616)
Deferred, change in tax rates
United States	(538)	(155,679)	109
Other	13	(3,536)	(10,656)
Total deferred, change in tax rates	(525)	(159,215)	(10,547)
Total deferred tax benefit	(88,815)	(225,591)	(41,163)
Total income tax provision (benefit)	$ 80,162	$ (47,740)	$ 135,236