Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Stockholders' Equity Note [Abstract]

Shares Repurchased Under Share Repurchase Program

A summary of shares repurchased under our share repurchase program authorized by our Board of Directors follows:



	2015		2014		2013
Shares repurchased	3.9		9.4		1.1
Aggregate purchase price	$	235.1	$	485.1	$	53.5
Average purchase price per share	$	60.49	$	51.59	$	47.37

Common Stock Issued With The Exercise Of Stock Options

A summary of shares of common stock issued in connection with the exercise of stock options follows:



	2015		2014		2013
Shares issued	1.3		1.7		1.1
Proceeds from the exercise of stock options	$	30.0	$	35.1	$	22.7
Average exercise price per share	$	23.33	$	20.50	$	20.31

Restricted Stock Grants And Shares Surrendered to Satisfy Tax Withholdings

The following table presents a summary of shares of common stock issued in connection with grants of restricted stock and shares surrendered to AutoNation to satisfy tax withholding obligations in connection with the vesting of restricted stock (in actual number of shares):



	2015	2014	2013
Shares issued	159,442	154,540	137,144
Shares surrendered to AutoNation to satisfy tax withholding obligations in connection with the vesting of restricted stock	36,712	46,752	44,738