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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

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