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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Increase (Decrease) in AOCI [Roll Forward] |  |  |  |
BALANCE | $ 1,174.6 | $ 1,127.7 | $ 1,255.7 | $ 1,095.7
Other comprehensive income (loss) before reclassifications: |  |  |  |
Pre-tax |  |  | (80.2) | (18.4)
Tax effect |  |  | 11.2 | 4.3
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Provision (benefit) for income taxes |  |  | (0.8) | 0.2
Net current period other comprehensive income (loss) | (7.3) | (13.8) | (66.4) | (14.8)
BALANCE | 1,215.9 | 1,164.1 | 1,215.9 | 1,164.1
Floorplan interest expense (pre-tax) |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Pre-tax |  |  | 2.7 | (0.6)
Other interest expense, net (pre-tax) |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Pre-tax |  |  | 0.8 | (0.2)
Accumulated other comprehensive income (loss) |  |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |  |
BALANCE | (206.0) | (138.7) | (147.0) | (137.8)
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Net current period other comprehensive income (loss) | (7.3) | (13.8) | (66.4) | (14.8)
BALANCE | (213.3) | (152.5) | (213.3) | (152.5)
Accumulated income (loss) on foreign currency translation |  |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |  |
BALANCE |  |  | (142.9) | (146.7)
Other comprehensive income (loss) before reclassifications: |  |  |  |
Pre-tax |  |  | (30.4) |
Tax effect |  |  | 0.0 |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Provision (benefit) for income taxes |  |  | 0.0 |
Net current period other comprehensive income (loss) |  |  | (30.4) | (0.4)
BALANCE | (173.2) | (147.1) | (173.2) | (147.1)
Accumulated income (loss) on foreign currency translation | Floorplan interest expense (pre-tax) |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Pre-tax |  |  | 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 |
Accumulated income (loss) on interest rate swaps |  |  |  |
Increase (Decrease) in AOCI [Roll Forward] |  |  |  |
BALANCE |  |  | (4.1) |
Other comprehensive income (loss) before reclassifications: |  |  |  |
Pre-tax |  |  | (49.8) |
Tax effect |  |  | 11.2 |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Provision (benefit) for income taxes |  |  | (0.8) |
Net current period other comprehensive income (loss) |  |  | (36.0) | (14.3)
BALANCE | $ (40.1) | $ (5.4) | (40.1) | $ (5.4)
Accumulated income (loss) on interest rate swaps | Floorplan interest expense (pre-tax) |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Pre-tax |  |  | 2.7 |
Accumulated income (loss) on interest rate swaps | Other interest expense, net (pre-tax) |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |
Pre-tax |  |  | $ 0.8 |

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