Acquisitions and Dispositions (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Acquisitions and Dispositions (Textual) [Abstract]
Business Acquisition, Cost of Acquired Entity, Cash Paid	$ 52,600,000	$ 58,300,000
Other Expenses	0	789,000
Inventories, net	1,537,112,000		1,542,318,000
Property, Plant and Equipment, Net	827,121,000		796,356,000
Total assets	3,825,937,000		3,819,478,000
Liabilities, Current	1,850,919,000		1,865,176,000
Total
Acquisitions and Dispositions (Textual) [Abstract]
Acquisition Costs, Cumulative		6,500,000
Business Acquisition, Cost of Acquired Entity, Purchase Price		138,200,000
Business Acquisition, Cost of Acquired Entity, Shares Transfered		1.39
Debt assumed as part of consideration paid		65,100,000
Inventories, net	86,848,000
Other Assets, Current	26,632,000
Property, Plant and Equipment, Net	24,865,000
Intangible Assets, Net (Including Goodwill)	214,035,000
Other Assets	864,000
Total assets	353,244,000
Liabilities, Current	116,500,000
Deferred Tax Liabilities, Net	29,898,000
Long-term Debt	68,639,000
Liabilities	215,037,000
BRAZIL
Acquisitions and Dispositions (Textual) [Abstract]
Number of dealerships acquired		18
Number of franchises acquired		22
BRAZIL | Collision Centers [Member]
Acquisitions and Dispositions (Textual) [Abstract]
Number of franchises acquired		5
UNITED KINGDOM
Acquisitions and Dispositions (Textual) [Abstract]
Number of dealerships acquired		4
U.S. [Member]
Acquisitions and Dispositions (Textual) [Abstract]
Number of dealerships acquired	2
Number of dealerships disposed		1
U.K. [Member]
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Goodwill Amount			1,500,000
Brazil [Member]
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Goodwill Amount			$ 130,900,000