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Interim Financial Statements - Assets Held For Sale, Discontinued Operations and Fair Value (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2015 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2016 USD ($) item | Jun. 30, 2015 USD ($) | May 31, 2016 | Dec. 31, 2015 USD ($) | Nov. 30, 2014 | Aug. 31, 2012
Combined financial information regarding entities accounted for as discontinued operations |  |  |  |  |  |  |  |  |
Number of entities newly classified as held for sale | item |  |  |  | 0 |  |  |  |  |
Balance Sheet information regarding entities accounted for as discontinued operations |  |  |  |  |  |  |  |  |
Total assets |  | $ 6.8 |  | $ 6.8 |  |  | $ 12.7 |  |
Total liabilities |  | 4.6 |  | 4.6 |  |  | 6.2 |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Debt instrument, Carrying Value |  | $ 1,660.8 |  | $ 1,660.8 |  |  | $ 1,275.0 |  |
5.75% senior subordinated notes due 2022 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.75% |  | 5.75% |  |  | 5.75% |  | 5.75%
Debt instrument, Carrying Value |  | $ 544.7 |  | $ 544.7 |  |  | $ 544.3 |  |
5.75% senior subordinated notes due 2022 | Fair Value, Inputs, Level 2 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Debt instrument, Fair Value |  | $ 544.7 |  | $ 544.7 |  |  | $ 558.6 |  |
5.375% Senior Subordinated Notes Due 2024 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.375% |  | 5.375% |  |  | 5.375% | 5.375% |
Debt instrument, Carrying Value |  | $ 296.6 |  | $ 296.6 |  |  | $ 296.4 |  |
5.375% Senior Subordinated Notes Due 2024 | Fair Value, Inputs, Level 2 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Debt instrument, Fair Value |  | $ 293.3 |  | $ 293.3 |  |  | 295.7 |  |
5.50% senior subordinated notes due 2026 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.50% |  | 5.50% |  | 5.50% |  |  |
Debt instrument, Carrying Value |  | $ 493.5 |  | $ 493.5 |  |  |  |  |
5.50% senior subordinated notes due 2026 | Fair Value, Inputs, Level 2 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Debt instrument, Fair Value |  | 468.8 |  | 468.8 |  |  |  |  |
Mortgage facilities |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Debt instrument, Carrying Value |  | 204.4 |  | 204.4 |  |  | 165.8 |  |
Mortgage facilities | Fair Value, Inputs, Level 2 |  |  |  |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |  |  |  |
Debt instrument, Fair Value |  | 213.9 |  | $ 213.9 |  |  | 165.8 |  |
Retail Automotive Franchise |  |  |  |  |  |  |  |  |
Divestitures |  |  |  |  |  |  |  |  |
Number of franchises disposed | item |  |  |  | 8 |  |  |  |  |
Retail Automotive Franchise | Disposed of by sale |  |  |  |  |  |  |  |  |
Divestitures |  |  |  |  |  |  |  |  |
Number of franchises disposed | item |  |  |  | 2 |  |  |  |  |
Retail Automotive Franchise | Disposal group, not discontinued operations |  |  |  |  |  |  |  |  |
Divestitures |  |  |  |  |  |  |  |  |
Number of franchises disposed | item |  |  |  | 6 |  |  |  |  |
Retail Commercial Truck Parts Locations |  |  |  |  |  |  |  |  |
Divestitures |  |  |  |  |  |  |  |  |
Number of locations disposed | item |  |  |  | 1 |  |  |  |  |
Hertz car rental franchise |  |  |  |  |  |  |  |  |
Divestitures |  |  |  |  |  |  |  |  |
Proceeds from sale of business | $ 17.8 |  |  |  |  |  |  |  |
Retail Automotive and Hertz car rental franchise | Held-for-sale |  |  |  |  |  |  |  |  |
Combined financial information regarding entities accounted for as discontinued operations |  |  |  |  |  |  |  |  |
Revenues |  | 5.6 | $ 19.5 | $ 14.0 | $ 48.0 |  |  |  |
Pre-tax loss |  | (2.0) | (0.9) | (2.0) | (4.7) |  |  |  |
Pre-tax gain on disposal |  |  | $ 0.6 |  | $ 2.9 |  |  |  |
Balance Sheet information regarding entities accounted for as discontinued operations |  |  |  |  |  |  |  |  |
Inventories |  | 3.4 |  | 3.4 |  |  | 6.2 |  |
Other assets |  | 3.4 |  | 3.4 |  |  | 6.5 |  |
Total assets |  | 6.8 |  | 6.8 |  |  | 12.7 |  |
Floor plan notes payable (including non-trade) |  | 2.9 |  | 2.9 |  |  | 4.3 |  |
Other liabilities |  | 1.7 |  | 1.7 |  |  | 1.9 |  |
Total liabilities |  | $ 4.6 |  | $ 4.6 |  |  | $ 6.2 |  |

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Data Type: | na
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