Taxes Summary of the provision for taxes - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 6,242	$ 3,033	$ 3,422
Current State and Local Tax Expense (Benefit)	5,563	(996)	5,073
Current Foreign Tax Expense (Benefit)	146,983	122,878	128,450
Current Income Tax Expense (Benefit)	158,788	124,915	136,945
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	(6,311)	(2,622)	(4,699)
Deferred State and Local Income Tax Expense (Benefit)	(1,736)	(1,950)	(161)
Deferred Foreign Income Tax Expense (Benefit)	(4,737)	(58)	7,162
Deferred Income Tax Expense (Benefit)	(12,784)	(4,630)	2,302
Federal Income Tax Expense (Benefit), Continuing Operations	(69)	411	(1,277)
State and Local Income Tax Expense (Benefit), Continuing Operations	3,827	(2,946)	4,912
Foreign Income Tax Expense (Benefit), Continuing Operations	142,246	122,820	135,612
Provision for taxes	$ 146,004	$ 120,285	$ 139,247