XML 98 R34.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Inventory and Vehicle Floorplan Payable (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2013
Inventory And Vehicle Floorplan Payable [Abstract] |
Components Of Inventory | The components of inventory at December 31 are as follows:
| 2013 |  | 2012
New vehicles | $ | 2,330.8 |  |  | $ | 1,938.0 |
Used vehicles | 346.5 |  |  | 318.7 |
Parts, accessories, and other | 149.9 |  |  | 140.2 |
Inventory | $ | 2,827.2 |  |  | $ | 2,396.9 |
Components Of Vehicle Floorplan Payable | The components of vehicle floorplan payables at December 31 are as follows:
| 2013 |  | 2012
Vehicle floorplan payable - trade | $ | 2,130.1 |  |  | $ | 1,766.3 |
Vehicle floorplan payable - non-trade | 898.9 |  |  | 773.9 |
Vehicle floorplan payable | $ | 3,029.0 |  |  | $ | 2,540.2 |

X
- Details
Name: | an_InventoryAndVehicleFloorplanPayableAbstract
Namespace Prefix: | an_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of vehicle floorplan payable. + References No definition available. + Details
Name: | an_ScheduleOfVehicleFloorplanPayablesTableTextBlock
Namespace Prefix: | an_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration