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

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

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

	September 30, 2013				December 31, 2012
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
			(in thousands)
Assets
Cash and cash equivalents	$	122,047	$	122,047	$	136,411	$	136,411
Foreign exchange forwards	50		50		146		146
Liabilities
Credit facility
USD denominated term loan	$	264,375	$	260,416	$	277,500	$	275,365
Multicurrency revolving line of credit	135,000		132,855		140,000		138,751
Interest rate swaps	2,229		2,229		2,725		2,725
Foreign exchange forwards	69		69		114		114