Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 3,422	$ 55,660	$ 20,116
Current State and Local Tax Expense (Benefit)	5,073	361	2,947
Current Foreign Tax Expense (Benefit)	128,450	144,974	94,882
Current Income Tax Expense (Benefit)	136,945	200,995	117,945
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	(4,699)	10,173	(4,817)
Deferred State and Local Income Tax Expense (Benefit)	(161)	3,471	1,149
Deferred Foreign Income Tax Expense (Benefit)	7,162	(16,389)	5,546
Deferred Income Tax Expense (Benefit)	2,302	(2,745)	1,878
Federal Income Tax Expense (Benefit), Continuing Operations	(1,277)	65,833	15,299
State and Local Income Tax Expense (Benefit), Continuing Operations	4,912	3,832	4,096
Foreign Income Tax Expense (Benefit), Continuing Operations	135,612	128,585	100,428
Provision for taxes	$ 139,247	$ 198,250	$ 119,823