Disposition of Business (Details) - USD ($) $ in Thousands			12 Months Ended
		May. 18, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
RLC [Member] | Disposal group, disposed of by sale, not discontinued operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross cash proceeds from disposition of business		$ 400
Goodwill, derecognized related to disposition of business			$ 1,400	$ 0	$ 0
Loss on disposition of business		$ 2,000
IBU [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill, derecognized related to disposition of business	[1]		$ (1,153)

[1] See Note 18 to these consolidated financial statements for a summary of the disposition.