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Disposition of Business (Details) - RLC [Member] - Disposal group, disposed of by sale, not discontinued operations [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
May 18, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Gross cash proceeds from disposition of business   $ 0.4
Goodwill, derecognized related to disposition of business $ 1.4  
Loss on disposition of business $ 2.0