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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Increase (Decrease) in AOCI [Roll Forward] |  |  |
BALANCE | $ 1,095.7 | $ 1,124.3 | $ 930.2
Other comprehensive income (loss) before reclassifications |  |  |
Pre-tax | (13.5) | (15.5) | 16.7
Tax effect | 4.1 | (2.1) | (0.6)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Provision (benefit) for income taxes | (0.1) | (1.2) | (4.6)
Net current period other comprehensive income (loss) | (9.2) | (14.4) | 23.7
Tax effects reclassified from accumulated other comprehensive income (loss) |  | (0.2) |
BALANCE | 1,255.7 | 1,095.7 | 1,124.3
Floorplan interest expense (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax | 0.4 | 4.7 | 10.3
Other interest expense, net (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax | (0.2) | 0.5 | 1.9
Realized (gain) loss on interest rate swap termination (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax |  | (0.7) |
Accumulated Other Comprehensive Income (Loss) |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |
BALANCE | (137.8) | (123.2) | (146.9)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Net current period other comprehensive income (loss) | (9.2) | (14.4) | 23.7
BALANCE | (147.0) | (137.8) | (123.2)
Accumulated income (loss) on foreign currency translation |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |
BALANCE | (146.7) | (122.6) | (137.6)
Other comprehensive income (loss) before reclassifications |  |  |
Pre-tax | 3.9 | (24.2) | 15.1
Tax effect | 0.0 | 0.0 | 0.0
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Provision (benefit) for income taxes | 0.0 | 0.0 | 0.0
Net current period other comprehensive income (loss) | 3.9 | (24.2) | 15.1
Tax effects reclassified from accumulated other comprehensive income (loss) |  | 0.0 |
BALANCE | (142.9) | (146.7) | (122.6)
Accumulated income (loss) on foreign currency translation | Floorplan interest expense (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax | 0.0 | 0.0 | 0.0
Accumulated income (loss) on foreign currency translation | Other interest expense, net (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax | 0.0 | 0.0 | 0.0
Accumulated income (loss) on foreign currency translation | Realized (gain) loss on interest rate swap termination (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax |  | 0.0 |
Accumulated income (loss) on interest rate swaps |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |
BALANCE | 8.9 |  |
Other comprehensive income (loss) before reclassifications |  |  |
Pre-tax | (17.4) |  |
Tax effect | 4.1 |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Provision (benefit) for income taxes | (0.1) |  |
Net current period other comprehensive income (loss) | (13.0) |  |
BALANCE | (4.1) | 8.9 |
Accumulated income (loss) on interest rate swaps | Floorplan interest expense (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax | 0.4 |  |
Accumulated income (loss) on interest rate swaps | Other interest expense, net (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax | (0.2) |  |
Accumulated income (loss) on interest rate swaps |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |
BALANCE | $ 8.9 | (0.7) | (9.3)
Other comprehensive income (loss) before reclassifications |  |  |
Pre-tax |  | 8.6 | 1.7
Tax effect |  | (2.1) | (0.6)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Provision (benefit) for income taxes |  | (1.2) | (4.6)
Net current period other comprehensive income (loss) |  | 9.8 | 8.7
Tax effects reclassified from accumulated other comprehensive income (loss) |  | (0.2) |
BALANCE |  | 8.9 | (0.7)
Accumulated income (loss) on interest rate swaps | Floorplan interest expense (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax |  | 4.7 | 10.3
Accumulated income (loss) on interest rate swaps | Other interest expense, net (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax |  | 0.5 | $ 1.9
Accumulated income (loss) on interest rate swaps | Realized (gain) loss on interest rate swap termination (pre-tax) |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  |
Pre-tax |  | $ (0.7) |

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