Other Income and Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Interest income	$ (6,655)	$ (4,133)	$ (3,215)
Foreign currency (gain) loss, net	1,944	1,451	11,823
Loss on debt retirement	8,536	1,512	4,835
Other	(2,052)	(5,447)	(953)
Total other (income) expense, net	$ 1,773	$ (6,617)	$ 12,490