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Interim Financial Statements (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2015 item | Mar. 31, 2015 | Jun. 30, 2015 USD ($) item | Jun. 30, 2014 USD ($) | Jun. 30, 2015 USD ($) item | Jun. 30, 2014 USD ($) item | Dec. 31, 2014 USD ($) | Jul. 01, 2015 | Nov. 30, 2014 | Sep. 30, 2014
Interim Financial Statements. |  |  |  |  |  |  |  |  |  |
Total revenues | $ |  |  | $ 4,904.4 | $ 4,370.5 | $ 9,375.5 | $ 8,385.7 |  |  |  |
Commercial Vehicle Distribution |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Minimum number of dealership locations |  |  |  |  | 70 |  |  |  |  |
Number of commercial vehicle dealerships |  |  |  |  | 3 |  |  |  |  |
Retail Automotive Franchise |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Minimum number of vehicle brands offered |  |  |  |  | 40 |  |  |  |  |
Number of acquired franchises |  |  |  |  | 1 | 2 |  |  |  |
Number of franchises disposed | 2 |  |  |  | 2 |  |  |  |  |
Interim Financial Statements. |  |  |  |  |  |  |  |  |  |
Total revenues | $ |  |  |  |  |  |  | $ 16,600.0 |  |  |
Total number of owned and operated franchises | 326 |  | 326 |  | 326 |  |  |  |  |
Number of owned and operated franchises in US | 178 |  | 178 |  | 178 |  |  |  |  |
Number of owned and operated franchises outside US | 148 |  | 148 |  | 148 |  |  |  |  |
Minimum number of vehicles retailed and wholesaled |  |  |  |  | 255,000 |  |  |  |  |
Retail Commercial Truck Dealership |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Number of acquired franchises |  |  |  |  | 2 |  |  |  |  |
Number of operating locations |  |  |  |  | 16 |  |  |  |  |
Ownership interest (as a percent) | 91.00% |  | 91.00% |  | 91.00% |  |  | 96.00% | 91.00% |
Ownership percentage of Equity Method Investment |  |  |  |  |  |  |  |  |  | 32.00%
Number of full service retail locations operated | 10 |  | 10 |  | 10 |  |  |  |  |
Number of full service retail locations acquired |  |  |  |  | 2 |  |  |  |  |
Ownership acquired (as a percentage) |  |  |  |  |  |  |  | 5.00% |  |
Penske Truck Leasing Co., L.P. |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Limited partnership interest (as a percent) |  | 9.00% |  |  | 9.00% |  |  |  |  |
Revenues | Geographic | U.S. and Puerto Rico |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Automotive dealership revenue (as a percent) |  |  |  |  | 61.00% |  |  |  |  |
Revenues | Geographic | Outside the U.S. |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Automotive dealership revenue (as a percent) |  |  |  |  | 39.00% |  |  |  |  |
Revenues | Premium brands |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |
Automotive dealership revenue (as a percent) |  |  |  |  | 72.00% |  |  |  |  |

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