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Organization and Basis of Presentation Effect of New Accounting Standards - Debt Issuance Costs (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Quantitative Effect of New Accounting Standard - Debt Issuance Costs $ 14.6 $ 18.8