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Commitments and Contingencies (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Loss Contingencies [Line Items] |  |
Accrual for environmental liabilities | $ 0.1 | $ 0.2
New Hertz |  |
Loss Contingencies [Line Items] |  |
Portion of shared liabilities | 15.00% |

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