Fair Values of Financial Instruments Schedule of Fair Values Of Financial Instruments by Balance Sheet Grouping (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Values Of Financial Instruments by Balance Sheet Grouping [Table Text Block]

The fair values at December 31, 2013 and 2012 do not reflect subsequent changes in the economy, interest rates, tax rates, and other variables that may affect the determination of fair value.

	December 31, 2013				December 31, 2012
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
			(in thousands)
Assets
Cash and cash equivalents	$	124,805	$	124,805	$	136,411	$	136,411
Foreign exchange forwards	41		41		146		146
Liabilities
Credit facility
USD denominated term loan	$	258,750	$	258,011	$	277,500	$	275,365
Multicurrency revolving line of credit	120,000		119,609		140,000		138,751
Interest rate swaps	2,031		2,031		2,725		2,725
Foreign exchange forwards	145		145		114		114