Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations - Narrative (Details)

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Discontinued Operations - Narrative (Details) - DLW Subsidiary - Discontinued operations - USD ($)
$ in Millions
Mar. 31, 2015
Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Pension benefit liability   $ 115.0
Deferred tax asset and tax benefit $ 43.4