Income Taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
|
| Income Tax Disclosure [Abstract] | |||||
| Income (loss) before income taxes | $ 12.3 | $ 9.0 | $ 1.9 | $ (0.9) | |
| Income tax expense | $ 1.8 | $ 3.6 | $ 1.8 | $ 1.5 | |
| Effective tax rate | 14.60% | 40.00% | 94.70% | (166.70%) | |
| U.S. federal corporate tax rate | 21.00% | 35.00% | |||
| Percentage of net operating losses limited upon Tax Reform enactment | 80.00% | 80.00% | |||
| X | ||||||||||
- Definition Percentage of Net Operating Losses Limited upon Tax Reform Enactment No definition available.
|
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|