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

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

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

The fair values at December 31, 2014 and 2013 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, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
			(in thousands)
Assets
Cash and cash equivalents	$	112,371	$	112,371	$	124,805	$	124,805
Foreign exchange forwards	107		107		41		41
Interest rate swaps	75		75		—		—
Liabilities
Credit facility
USD denominated term loan	$	232,500	$	231,645	$	258,750	$	258,011
Multicurrency revolving line of credit	91,469		91,124		120,000		119,609
Interest rate swaps	1,317		1,317		2,031		2,031
Foreign exchange forwards	236		236		145		145