Equity Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax, Portion Attributable to Parent	$ 124		$ 248
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Before Reclassificaions, Net of Tax	118	(3,687)	(1,127)	(1,666)
Other Comprehensive Income (Loss), Before Reclassifications, Net of Tax	118	(3,687)	(1,127)	(1,666)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	213	244	426	487
Other Comprehensive Income (Loss), After Reclassifications, Net of Tax	213	244	426	487
Change In Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance, Foreign Currency Translation Adjustment, Net of Tax	12,962	14,656	14,207	12,635
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	118	(3,687)	(1,127)	(1,666)
Ending Balance, Foreign Currency Translation Adjustment, Net of Tax	13,080	10,969	13,080	10,969
Beginning Balance, Pension and Other Postretirement Benefit Plans, Net of Tax	(12,353)	(9,399)	(12,566)	(9,642)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	213	244	426	487
Ending Balance, Pension and Other Postretirement Benefit Plans, Net of Tax	(12,140)	(9,155)	(12,140)	(9,155)
Beginning Balance Accumulated Other Comprehensive Income, Net of Tax	609	5,257	1,641	2,993
Other Comprehensive Income (Loss), Net of Tax	331	(3,443)	(701)	(1,179)
Ending Balance Accumulated Other Comprehensive Income, Net of Tax	940	1,814	940	1,814
Cost of Sales [Member]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	133	103	266	205
Selling, General and Administrative Expenses [Member]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	$ 204	$ 141	$ 408	$ 282
Warrant [Member]
Change In Accumulated Other Comprehensive Income [Roll Forward]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,266	3,368	3,368	3,368