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Discontinued Operation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue									$ 0	$ 0	$ 0
Loss from discontinued operations									(1,134)	(559)	6,007
Income tax (provision) benefit									(454)	389	234
Income (loss) from discontinued operations	(96)	(177)	(941)	(374)	116	(116)	195	(365)	(1,588)	(170)	6,241
Commercial [Member] \| Severance and Benefits [Member]
Restructuring Reserve [Roll Forward]
Balance				0				0	0	0	175
Adjustments											0
Payments									0	0	(175)
Balance	0				0				0	0	0
Commercial [Member] \| Lease Obligations [Member]
Restructuring Reserve [Roll Forward]
Balance				831				1,118	831	1,118	1,929
Adjustments											(390)
Payments									(258)	(287)	(421)
Balance	573				831				573	831	1,118
Commercial [Member] \| Commercial [Member]
Loss from discontinued operations									(1,134)	(559)	(163)
Reclassification of foreign currency translation gains to income upon substantial liquidation of subsidiaries									0	0	6,170
Income tax (provision) benefit									(454)	389	234
Income (loss) from discontinued operations									$ (1,588)	$ (170)	$ 6,241