Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014		Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income, beginning balance	$ 6,157		$ 6,002
Other comprehensive loss before reclassifications	5,374		5,656
Amounts reclassified from OCI	(305)		(432)
Accumulated Other Comprehensive Income, ending balance	11,226		11,226
Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income, beginning balance	97	[1]	(99)	[1]
Other comprehensive loss before reclassifications	489	[1]	750	[1]
Amounts reclassified from OCI	(245)	[1]	(310)	[1]
Accumulated Other Comprehensive Income, ending balance	341	[1]	341	[1]
Pension Items [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income, beginning balance	(6,830)	[1]	(6,768)	[1]
Other comprehensive loss before reclassifications	0	[1]	0	[1]
Amounts reclassified from OCI	(60)	[1]	(122)	[1]
Accumulated Other Comprehensive Income, ending balance	(6,890)	[1]	(6,890)	[1]
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income, beginning balance	12,890		12,869
Other comprehensive loss before reclassifications	4,885		4,906
Amounts reclassified from OCI	0		0
Accumulated Other Comprehensive Income, ending balance	$ 17,775		$ 17,775

[1] Cash Flow Hedges and Pension Items are net of tax.