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Business Acquisitions Purchase Price (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2014
Business Acquisition [Line Items]
Identifiable intangible assets	$ 5,158
Goodwill	2,116us-gaap_Goodwill	21,051us-gaap_Goodwill	21,051us-gaap_Goodwill
PECO and FGC Acquisitions [Member]
Business Acquisition [Line Items]
Current assets				2,391
Property, plant and equipment				0
Identifiable intangible assets				5,158
Current and long-term liabilities assumed				(3,935)
Total identifiable net assets acquired				3,614
Goodwill				4,465
Total assets acquired				8,079
Scenario, Previously Reported [Member] \| PECO and FGC Acquisitions [Member]
Business Acquisition [Line Items]
Current assets				2,365
Property, plant and equipment				281
Identifiable intangible assets				0
Current and long-term liabilities assumed				(2,035)
Total identifiable net assets acquired				611
Goodwill				7,468
Total assets acquired				8,079
Scenario, Adjustment [Member] \| PECO and FGC Acquisitions [Member]
Business Acquisition [Line Items]
Current assets				26
Property, plant and equipment				(281)
Identifiable intangible assets				5,158
Current and long-term liabilities assumed				(1,900)
Total identifiable net assets acquired				3,003
Goodwill				(3,003)
Total assets acquired				$ 0