Stock And Stock-Based Incentive Plans (Tables)

9 Months Ended

Nov. 30, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Composition Of Share-Based Compensation Expense

Composition of Share-Based Compensation Expense

	Three Months Ended				Nine Months Ended
	November 30				November 30
(In thousands)	2016		2015		2016		2015
Cost of sales	$	584	$	394	$	2,998	$	1,459
CarMax Auto Finance income	663		502		2,314		1,100
Selling, general and administrative expenses	10,522		11,178		67,784		43,728
Share-based compensation expense, before income taxes	$	11,769	$	12,074	$	73,096	$	46,287

Composition Of Share-Based Compensation Expense - By Grant Type

Composition of Share-Based Compensation Expense – By Grant Type

	Three Months Ended					Nine Months Ended
	November 30					November 30
(In thousands)	2016			2015		2016		2015
Nonqualified stock options	$	4,756		$	5,794	$	32,977	$	20,064
Cash-settled restricted stock units (RSUs)	4,490			2,960		25,951		14,358
Stock-settled market stock units (MSUs)	2,463			2,586		9,811		8,123
Stock-settled performance stock units (PSUs)	(488		)	341		1,844		1,579
Employee stock purchase plan	305			296		1,070		1,003
Restricted stock awards (RSAs)	243			97		1,443		1,160
Share-based compensation expense, before income taxes	$	11,769		$	12,074	$	73,096	$	46,287

Schedule Of Stock Incentive Plan Information

Share/Unit Activity

	Nine Months Ended November 30, 2016
	Equity Classified											Liability Classified
(Shares/units in thousands)	Options			MSUs			PSUs		RSAs			RSUs
Outstanding as of February 29, 2016	7,322			543			66		17			1,320
Granted	2,310			171			83		49			632
Exercised or vested and converted	(1,144		)	(210		)	—		(17		)	(436		)
Cancelled	(4		)	(1		)	—		—			(89		)
Outstanding as of November 30, 2016	8,484			503			149		49			1,427
Weighted average grant date fair value per share/unit:
Granted	$	14.19		$	63.96		$	51.63	$	50.65		$	51.63
Ending outstanding	$	14.99		$	65.66		$	60.94	$	50.65		$	55.04
	As of November 30, 2016
Unrecognized compensation (in millions)	$	37.4		$	13.6		$	2.5	$	1.2

Share Repurchase Program

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule Of Common Stock Repurchases

Common Stock Repurchases

	Three Months Ended				Nine Months Ended
	November 30				November 30
	2016		2015		2016		2015
Number of shares repurchased (in thousands)	3,780.5		7,680.8		8,715.2		13,336.1
Average cost per share	$	52.56	$	58.03	$	52.38	$	61.14
Available for repurchase, as of end of period (in millions)	$	1,691.5	$	1,553.8	$	1,691.5	$	1,553.8