Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain/(loss) from sale of discontinued operations, net of tax		$ 0	$ 112	$ (7,008)
Cash received from sale of subsidiary, net		$ 0	25,366	$ 2,263
Field and Collateral [Domain]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Consideration Transferred	$ 29,100
Gain/(loss) from sale of discontinued operations, net of tax			(1,400)
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash received from sale of subsidiary, net			$ 1,500