Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income from continuing operations before income taxes and equity income
U.S.	$ (67,276)	$ (13,934)	$ 28,281
International	36,151	70,405	85,368
Income (loss) from continuing operations before income taxes and equity income	(31,125)	56,471	113,649
Currently payable:
U.S. federal	(12,116)	903	(7)
U.S. state	575	233	177
International	19,216	23,775	17,127
Total income taxes currently payable	7,675	24,911	17,297
Deferred U.S. federal	(7,452)	(5,924)	1,854
Deferred U.S. state	(2,646)	(1,303)	(10,911)
Deferred international	(356)	2,530	(2,741)
Total income tax expense from continuing operations	(2,779)	20,214	5,499
Cash payments for income taxes, including taxes on gain or loss from discontinued business	$ 34,900	$ 115,600	$ 26,800