Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization		$ (5,750)
Goodwill, Gross	99,225	99,553
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	18,742
Indefinite-lived trademarks, beginning of period	2,165
Gross intangibles assets excluding goodwill, beginning of period	20,907
Accumulated amortization, beginning of period	(5,750)
Additions to intangible assets	0
Amortization of Intangible Assets	(374)
Gross finite-lived intangible assets, end of period	18,742
Indefinite-lived trademarks, end of period	2,165
Gross intangibles assets excluding goodwill, end of period	20,907
Accumulated amortization, end of period	(6,124)
Goodwill, Impaired, Accumulated Impairment Loss	(36,791)	(37,273)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	154
Trademarks [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	5,200
Accumulated amortization, beginning of period	(440)
Additions to intangible assets	0
Amortization of Intangible Assets	(85)
Gross finite-lived intangible assets, end of period	5,200
Accumulated amortization, end of period	525
Customer Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	11,960
Accumulated amortization, beginning of period	4,625
Additions to intangible assets	0
Amortization of Intangible Assets	234
Gross finite-lived intangible assets, end of period	11,960
Accumulated amortization, end of period	4,859
Noncompete Agreements [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	150
Accumulated amortization, beginning of period	(105)
Additions to intangible assets	0
Amortization of Intangible Assets	(8)
Gross finite-lived intangible assets, end of period	150
Accumulated amortization, end of period	113
Franchise Rights [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	972
Accumulated amortization, beginning of period	(304)
Additions to intangible assets	0
Amortization of Intangible Assets	(24)
Gross finite-lived intangible assets, end of period	972
Accumulated amortization, end of period	328
Developed Technology Rights [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	460
Accumulated amortization, beginning of period	(276)
Additions to intangible assets	0
Amortization of Intangible Assets	(23)
Gross finite-lived intangible assets, end of period	460
Accumulated amortization, end of period	299
GETS [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Gross	35,713	35,713
Finite-lived Intangible Assets [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(164)	(164)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	0
PSS [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Gross	46,641	47,075
Finite-lived Intangible Assets [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(29,497)	(30,057)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	126
MRI [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Gross	16,871	16,765
Finite-lived Intangible Assets [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(7,130)	(7,052)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	$ 28