v3.10.0.1

Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2018 | Dec. 31, 2018
Income Tax Contingency [Line Items] |  |  |
Income tax benefit related to change in estimated state tax rate | $ 5.0 | $ 5.0 |
Income tax expense related to buyout of tax receivable agreement |  | $ 1.6 |
Forecast |  |  |
Income Tax Contingency [Line Items] |  |  |
Effective income tax rate |  |  | 20.40%

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