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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Sep. 30, 2019
Operating Loss Carryforwards [Line Items] |  |  |
Unrecognized Tax Benefits, Increase resulting from current period tax positions |  | $ 4.5 |
Unrecognized Tax Benefits, Increase in liability resulting from prior year | $ 2.2 |  | $ 2.2
Unrecognized Tax Benefits, Decrease resulting from settlements with taxing authorities | $ 4.5 |  |
Minimum |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Open Tax Year |  |  | 2016
New York State Division of Taxation and Finance | Minimum |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Income Tax Examination, Year under Examination |  |  | 2014

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