Reclassifications from Accumulated Other Comprehensive Income - Amounts Reclassified from AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Reclassifications from Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net	$ 3,894		$ (555)
Net sales	(761,990)		(774,252)
Cost of sales	685,252		679,151
Prior service cost and recognized actuarial loss amortization related to pensions	(300)		(338)
Foreign Currency Gain (Loss) [Member] | Reclassifications from Accumulated Other Comprehensive Income
Reclassifications from Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net	252		0
Available-for-sale investment | Reclassifications from Accumulated Other Comprehensive Income
Reclassifications from Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net	0		(561)
Accumulated net gain (loss) from designated or qualifying cash flow hedges | Currency hedge portfolio | Reclassifications from Accumulated Other Comprehensive Income
Reclassifications from Accumulated Other Comprehensive Income [Line Items]
Net sales	1,027		8,632
Accumulated net gain (loss) from designated or qualifying cash flow hedges | Bunker fuel forward contracts | Reclassifications from Accumulated Other Comprehensive Income
Reclassifications from Accumulated Other Comprehensive Income [Line Items]
Cost of sales	175		2,839
Prior service cost and recognized actuarial loss amortization related to pensions | Reclassifications from Accumulated Other Comprehensive Income
Reclassifications from Accumulated Other Comprehensive Income [Line Items]
Prior service cost and recognized actuarial loss amortization related to pensions	$ 300	[1]	$ 338	[1]

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost. See Note 10 for further details.