Consolidated Condensed Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data	Jun. 30, 2011	Dec. 31, 2010
ASSETS
Allowance for doubtful accounts	$ 2,180	$ 1,902
Penske Automotive Group stockholders' equity:
Preferred Stock, par value	$ 0.0001	$ 0.0001
Preferred Stock, shares authorized	100	100
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0.0001	$ 0.0001
Common Stock, shares authorized	240,000	240,000
Common Stock, shares issued	92,062	92,100
Common Stock, shares outstanding	92,062	92,100
Non-voting Common Stock, $0.0001 par value, 7,125 shares authorized; none issued and outstanding
Penske Automotive Group stockholders' equity:
Common Stock, par value	$ 0.0001	$ 0.0001
Common Stock, shares authorized	7,125	7,125
Common Stock, shares issued	0	0
Common Stock, shares outstanding	0	0
Class C Common Stock, $0.0001 par value, 20,000 shares authorized; none issued and outstanding
Penske Automotive Group stockholders' equity:
Common Stock, par value	$ 0.0001	$ 0.0001
Common Stock, shares authorized	20,000	20,000
Common Stock, shares issued	0	0
Common Stock, shares outstanding	0	0