Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income from continuing operations before income taxes:
U.S.	$ (10,719)	$ 3,082	$ 34,129
International	218,214	192,617	148,492
Income before income taxes	207,495	195,699	182,621
Current:
U.S. – federal	3,110	77,799	7,215
U.S. – state	(623)	1,762	755
International	57,871	48,032	41,516
Current Income Tax Expense (Benefit)	60,358	127,593	49,486
Deferred:
U.S. – federal	(2,206)	9,596	6,091
U.S. – state	(826)	819	1,060
International	(16,017)	(1,724)	(9,617)
Deferred Income Tax Expense (Benefit)	(19,049)	8,691	(2,466)
Income taxes	$ 41,309	$ 136,284	$ 47,020