Changes in Accumulated Other Comprehensive Income (Loss) - Summary (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ 318,420	$ 369,275
Other comprehensive income (loss)	(9,511)	(802)
Amounts reclassified from accumulated other comprehensive loss	331	215
Balance at end of period	253,577	373,214
Total Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(25,979)	(42,685)
Balance at end of period	(35,159)	(43,272)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(18,022)	(18,458)
Other comprehensive income (loss)	(9,957)	(127)
Amounts reclassified from accumulated other comprehensive loss	0	0
Balance at end of period	(27,979)	(18,585)
Defined Benefit Pension Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(3,080)	(22,253)
Other comprehensive income (loss)	0	0
Amounts reclassified from accumulated other comprehensive loss	331	215
Balance at end of period	(2,749)	(22,038)
Loss reclassified from AOCI for defined benefit pension plans		200
Tax benefit reclassified from AOCI for defined benefit pension plans		100
Settlement reclassified from AOCI before tax	400
Tax benefit from settlement reclassified from AOCI	100
Gains and Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(4,877)	(1,974)
Other comprehensive income (loss)	446	(675)
Amounts reclassified from accumulated other comprehensive loss	0	0
Balance at end of period	$ (4,431)	$ (2,649)