Annual report pursuant to Section 13 and 15(d)

Income Taxes, Valuation Allowances and NOL Carryforwards (Details)

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Income Taxes, Valuation Allowances and NOL Carryforwards (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2014
Dec. 31, 2015
Operating Loss Carryforwards [Line Items]    
Reversal of deferred tax valuation allowance $ 9.5  
Total valuation allowance   $ 70.6
Current valuation allowance 10.6 12.4
Non-current valuation allowance $ 58.4 58.2
Tax benefit of loss carryovers   62.9
NOL carryforwards which expire   51.9
NOL carryforwards which have an unlimited life   11.0
Foreign jurisdictions [Member]    
Operating Loss Carryforwards [Line Items]    
Tax benefit of loss carryovers   11.8
State and Local Jurisdiction [Member]    
Operating Loss Carryforwards [Line Items]    
Tax benefit of loss carryovers   51.1
United States    
Operating Loss Carryforwards [Line Items]    
Total valuation allowance   57.7
Foreign jurisdictions [Member]    
Operating Loss Carryforwards [Line Items]    
Total valuation allowance   $ 12.9