Shareholders' Equity (Restricted Stock Grants And Shares Surrendered To Satisfy Tax Withholdings) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Stockholders' Equity Note [Abstract]
Shares issued	4,692	0	149,880	137,144
Shares surrendered to AutoNation to satisfy tax withholding obligations in connection with the vesting of restricted stock	33,274	36,175	44,477	42,306