Depreciation of Revenue Earning Equipment and Lease Charges (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Depreciation of Revenue Earning Equipment and Lease Charges Disclosure [Abstract] | ||||||||||||||
Depreciation of revenue earning equipment | $ 2,407.8 | $ 2,145.9 | $ 1,912.3 | |||||||||||
Adjustment of depreciation upon disposal of revenue earning equipment | 37.2 | (96.8) | (112.2) | |||||||||||
Rents paid for vehicles leased | 80.5 | 79.8 | 96.1 | |||||||||||
Total | $ 674.9 | $ 627.5 | $ 580.1 | $ 550.0 | $ 556.7 | $ 514.5 | $ 508.7 | $ 1,207.6 | $ 1,023.2 | $ 1,882.5 | $ 1,579.9 | $ 2,525.5 | $ 2,128.9 | $ 1,896.2 |