Discontinued Operations - Narrative (Details) $ in Thousands, € in Millions					12 Months Ended
	Oct. 01, 2015 EUR (€)	Sep. 30, 2015 EUR (€) payment	Aug. 10, 2015 EUR (€)	Aug. 10, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Feb. 19, 2016 EUR (€)	Feb. 19, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of Tecnonet, net of cash divested and transaction costs					$ 8,688	$ 0	$ 0
Number of payments | payment		2
Gain on sale of Tecnonet					189	0	0
Tecnonet
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of Tecnonet, net of cash divested and transaction costs			€ 15.6	$ 17,000
Proceeds from intercompany obligation	€ 1.5	€ 1.5	€ 4.1	$ 4,600
Gain on sale of Tecnonet					200
Foreign currency translation loss					2,180	$ 0	$ 0
Transaction costs					800
Subsequent Event | Tecnonet
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Working capital adjustment								€ 4.3	$ 4,800
Foreign Currency Gain (Loss) | Tecnonet
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Foreign currency translation loss					1,000
Related Party Payables | Tecnonet
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Foreign currency translation loss					1,200
Other Current Assets | Tecnonet
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Working capital adjustment					$ 4,800