Comprehensive Income (Accumulated Other Comprehensive income (loss)) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)				$ (53,894)
Income tax (benefit)		$ (1,043)	$ (3,466)	(75)	$ (6,648)
Accumulated other comprehensive income (loss)		(52,381)		(52,381)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)				(53,894)	(39,822)
Other comprehensive income (loss) before reclassifications				967	(6,699)
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]			866	(3,423)
Income tax (benefit)				(320)	1,264
Net current-period other comprehensive income (loss)				1,513	(8,858)
Accumulated other comprehensive income (loss)		(52,381)	(48,680)	(52,381)	(48,680)
Cash Flow Hedging Gain (Loss) [Member]
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)				1,201	3,276
Other comprehensive income (loss) before reclassifications				(750)	2,583
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]	0	(2,400)	(524)	(5,040)
Income tax (benefit)				194	1,862
Net current-period other comprehensive income (loss)				(1,080)	(595)
Accumulated other comprehensive income (loss)		121	2,681	121	2,681
Pension Liability [Member]
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)				(25,982)	(30,760)
Other comprehensive income (loss) before reclassifications				0	0
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]	700	800	1,390	1,617
Income tax (benefit)				(514)	(598)
Net current-period other comprehensive income (loss)				876	1,019
Accumulated other comprehensive income (loss)		(25,106)	(29,741)	(25,106)	(29,741)
Cumulative Translation Adjustment [Member]
Accumulated other comprehensive income (loss) [Roll Forward]
Accumulated other comprehensive income (loss)				(29,113)	(12,338)
Other comprehensive income (loss) before reclassifications				1,717	(9,282)
Amounts reclassified from other accumulated comprehensive income (loss) before tax	[1]			0	0
Income tax (benefit)				0	0
Net current-period other comprehensive income (loss)				1,717	(9,282)
Accumulated other comprehensive income (loss)		$ (27,396)	$ (21,620)	$ (27,396)	$ (21,620)

[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. The amounts recorded in the charts above are for the six months ended June 30, 2016 and 2015. For the three months ended June 30, 2016, $0.0 million of the cash flow hedging gain and $0.7 million of the pension liability were reclassified from accumulated other comprehensive loss to the statement of income. For the three months ended June 30, 2015, $2.4 million of the cash flow hedging gain and $0.8 million of the pension liability were reclassified from accumulated other comprehensive loss to the statement of income. Refer to Note 5 and Note 10, respectively, for further details.