Derivatives Gain (Loss) in Statement of Finacial Position (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives (Effective Portion)	$ (374,000)	$ 1,864,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(126,000)	(287,000)
Amount of Gain (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	57,000
Amount of Gain (Loss) Recognized in Income on Derivatives	(143,000)	(220,000)
Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income	(10,000)	136,000
Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income		(356,000)
Derivative Instruments, Gain (Loss) Recognized in Income	(133,000)
Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(345,000)	(1,171,000)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives (Effective Portion)	(382,000)	1,601,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(126,000)	(220,000)
Amount of Gain (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	57,000
Foreign Exchange Forward [Member] | Selling General and Administrative Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income	(345,000)
Derivative Instruments, Gain (Loss) Recognized in Income		(1,171,000)
Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives (Effective Portion)	8,000	263,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	0	(67,000)
Amount of Gain (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	0
Interest Rate Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income	(11,000)	(226,000)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(345,000)	(1,171,000)
EUR / AUD [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ 0	$ (35,000)