Comprehensive Income (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)		$ (55,737)
Accumulated other comprehensive income (loss)		(57,915)
Accumulated Other Comprehensive Loss
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)		(55,737)	$ (49,078)
Other comprehensive income (loss) before reclassifications		880	(21)
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]	(4,033)	3,515
Reclassification from AOCI, Current Period, Tax		975	(850)
Net current-period other comprehensive income (loss)		(2,178)	2,644
Accumulated other comprehensive income (loss)		(57,915)	(46,434)
Cash Flow Hedging Gain (Loss)
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)		4,085	(3,530)
Other comprehensive income (loss) before reclassifications		5,120	5,462
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]	(6,193)	1,498
Reclassification from AOCI, Current Period, Tax		1,496	(362)
Net current-period other comprehensive income (loss)		423	6,598
Accumulated other comprehensive income (loss)		4,508	3,068
Pension Liability
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)		(31,718)	(25,813)
Other comprehensive income (loss) before reclassifications		0	0
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]	2,160	2,017
Reclassification from AOCI, Current Period, Tax		(521)	(488)
Net current-period other comprehensive income (loss)		1,639	1,529
Accumulated other comprehensive income (loss)		(30,079)	(24,284)
Cumulative Translation Adjustments
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)		(28,104)	(19,735)
Other comprehensive income (loss) before reclassifications		(4,240)	(5,483)
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]	0	0
Reclassification from AOCI, Current Period, Tax		0	0
Net current-period other comprehensive income (loss)		(4,240)	(5,483)
Accumulated other comprehensive income (loss)		$ (32,344)	$ (25,218)

[1] The cash flow hedging gain (loss) and pension liability accumulated other comprehensive income (loss) components are included in sales or cost of sales and as a component of net periodic pension cost, respectively. Refer to Note 6 and Note 12, respectively, for further details.