Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Balance Sheet information regarding entities accounted for as discontinued operations
Total liabilities	$ 35.5	$ 75.6
Retail
Combined financial information regarding entities accounted for as discontinued operations
Revenues	263.2	508.8	830.1
Pre-tax income (loss)	(7.4)	(17.5)	0.3
Gain (loss) on disposal	0.8	8.1	3.3
Balance Sheet information regarding entities accounted for as discontinued operations
Inventory	35.8	69.2
Other assets	28.0	54.2
Total assets	63.8	123.4
Floor plan notes payable (including non-trade)	22.7	54.3
Other liabilities	12.8	21.3
Total liabilities	$ 35.5	$ 75.6

Disposal group including discontinued operation floor plan notes payable.

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- Definition

The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for current assets (assets with expected useful life shorter than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold or that has subsequently been disposed of through sale, as of the financial statement date.

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- Definition

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 3

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- Definition

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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-Name Regulation S-X (SX)

-Number 210

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- Definition

For the disposal group, including a component of the entity (discontinued operation), carrying amount of inventories (net of all valuation allowances and write-downs).

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For the disposal group, including a component of the entity (discontinued operation), carrying amount of assets not otherwise specified in the taxonomy that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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For the disposal group, including a component of the entity (discontinued operation), obligations not otherwise itemized that are due within one year or operating cycle, if longer, from the balance sheet date.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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