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SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) - Income tax valuation allowance, deducted from deferred tax assets: - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Movement in valuation and qualifying accounts      
Balance at Beginning of Period $ 168.6 $ 128.1 $ 116.0
Charged to Costs and Expenses 6.6 40.5 12.1
Balance at End of Period $ 175.2 $ 168.6 $ 128.1