Derivatives - Amount of Gain (Loss) Recognized in OCI and Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) recognized in OCI	$ 1,522	$ (592)	$ 5,442	$ (7,875)
Interest expense	(1,233)	(2,197)	(4,156)	(8,056)
Net sales	267,021	243,975	796,259	705,871
Cost of sales	(146,527)	(141,961)	(439,732)	(415,857)
Derivatives designated as cash flow hedges | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) reclassified from AOCI	312	(494)	966	(1,204)
Derivatives designated as cash flow hedges | Interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) recognized in OCI	(18)	(30)	619	(6,256)
Derivatives designated as cash flow hedges | Interest rate swap | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) reclassified from AOCI	(319)	(425)	(1,198)	(439)
Derivatives designated as cash flow hedges | Foreign currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) recognized in OCI	33	(1,324)	(83)	(2,596)
Derivatives designated as cash flow hedges | Foreign currency forward contracts | Revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) reclassified from AOCI	$ (1,500)	$ 157	$ (4,674)	$ 666