Hedging (Tables)

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]

A summary of the aggregate contractual or notional amounts, balance sheet location and estimated fair values of derivative financial instruments designated as cash flow hedges at December 31, 2012 is as follows (in thousands):

	Contractual / Notional Amount		Consolidated Balance Sheet Classification	Estimated Fair Value
				Asset		(Liability)
Foreign currency forward exchange contracts	$	13,986	Other accrued liabilities	$	—	$	(297	)

A summary of the aggregate contractual or notional amounts, balance sheet location and estimated fair values of derivative financial instruments designated as cash flow hedges at December 31, 2011 is as follows (in thousands):

	Contractual / Notional Amount		Consolidated Balance Sheet Classification	Estimated Fair Value
				Asset		(Liability)
Foreign currency forward exchange contracts	$	15,480	Other current assets	$	—	$	(647	)

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The effect of derivative instruments on the Consolidated Financial Statements for the year ended December 31, 2012 was as follows (in thousands):

Type of Cash Flow Hedge	Effective Portion					Ineffective Portion
	Hedge Gain Recognized in Other Comprehensive Income		Consolidated Statements of Operations Classification of Gain Reclassified from Accumulated Other Comprehensive Income	Hedge Gain  Reclassified from Accumulated Other Comprehensive Income		Consolidated Statement of Operations Classification of Gain (Loss) Recognized	Hedge Gain (Loss) Recognized
Foreign currency  forward exchange contracts	$	9
			Cost of sales	$	286	None	$	—
			Research and development	183		None	—
			Selling, general and administrative	87		None	—

The effect of derivative instruments on the Consolidated Financial Statements for the year ended December 31, 2011 was as follows (in thousands):

Type of Cash Flow Hedge	Effective Portion						Ineffective Portion
	Hedge Loss Recognized in Other Comprehensive Income			Consolidated Statements of Operations Classification of Gain Reclassified from Accumulated Other Comprehensive Income	Hedge Gain  Reclassified from Accumulated Other Comprehensive Income		Consolidated Statement of Operations Classification of Gain (Loss) Recognized	Hedge Gain (Loss) Recognized
Foreign currency  forward exchange contracts	$	(1,167	)
				Cost of sales	$	41	None	$	—
				Research and development	322		None	—
				Selling, general and administrative	123		None	—

The effect of derivative instruments on the Consolidated Financial Statements for the year ended December 31, 2010 was as follows (in thousands):

Type of Cash Flow Hedge	Effective Portion						Ineffective Portion
	Hedge Loss Recognized in Other Comprehensive Income			Consolidated Statements of Operations Classification of Gain Reclassified from Accumulated Other Comprehensive Income	Hedge Gain  Reclassified from Accumulated Other Comprehensive Income		Consolidated Statement of Operations Classification of Gain (Loss) Recognized	Hedge Gain (Loss) Recognized
Foreign currency  forward exchange contracts	$	(354	)
				Cost of sales	$	104	None	$	—
				Research and development	705		None	—
				Selling, general and administrative	162		None	—