Fair Value and Derivative Financial Instruments Fair Value and Derivative Financial Instruments (gain (loss) reclassified from accumulated OCI to net income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Forward contracts, gain (loss) reclassified from accumulated OCI into net income	$ (1,158)	$ (16)	$ (2,139)	$ 193
Foreign Exchange Forward [Member] | Net sales [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Forward contracts, gain (loss) reclassified from accumulated OCI into net income	(1,157)	475	(2,295)	450
Foreign Exchange Forward [Member] | Other, net [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Forward contracts, gain (loss) reclassified from accumulated OCI into net income	$ (1)	$ (491)	$ 156	$ (257)