Derivatives Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Foreign currency forward contracts
Derivative [Line Items]
Notional amount of derivatives, matured during period	$ 42,890	$ 51,250	$ 118,017	$ 131,923
Interest Expense [Member] | Interest rate swaps
Derivative [Line Items]
Loss on derivative		(13)	(12)	(139)
Selling General and Administrative Expense [Member] | Foreign currency forward contracts
Derivative [Line Items]
Gain recognized in income		361		617
Loss on derivative	(2,240)		(2,384)
Minimum
Derivative [Line Items]
Derivative, percentage of forcasted transactions with currency rate exposure			60.00%
Maximum
Derivative [Line Items]
Derivative, percentage of forcasted transactions with currency rate exposure			90.00%
Cash Flow Hedging [Member]
Derivative [Line Items]
Gain (Loss)	(53)	(74)	(585)	43
Cash Flow Hedging [Member] | Sales [Member]
Derivative [Line Items]
Gain recognized in income		54		496
Loss on derivative	(369)		(517)
Cash Flow Hedging [Member] | Cost of Sales [Member]
Derivative [Line Items]
Gain recognized in income	316
Loss on derivative		$ (128)	$ (68)	$ (453)