Consolidated Statements Of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	May 31, 2025	May 31, 2024
SALES AND OPERATING REVENUES:
NET SALES AND OPERATING REVENUES	$ 7,546,541	$ 7,113,397
TOTAL COST OF SALES	6,652,918	6,321,502
GROSS PROFIT	893,623	791,895
CARMAX AUTO FINANCE INCOME	141,650	146,970
Selling, general and administrative expenses	659,643	638,578
Depreciation, Depletion and Amortization, Nonproduction	65,739	61,869
Interest expense	27,070	31,362
Other (income) expense	(309)	416
Earnings before income taxes	283,130	206,640
Income tax provision	72,749	54,200
NET EARNINGS	$ 210,381	$ 152,440
WEIGHTED AVERAGE COMMON SHARES:
Basic, shares	152,137	157,161
Diluted, shares	152,607	157,706
NET EARNINGS PER SHARE:
Basic (in dollars per share)	$ 1.38	$ 0.97
Diluted (in dollars per share)	$ 1.38	$ 0.97
Used vehicle sales
SALES AND OPERATING REVENUES:
NET SALES AND OPERATING REVENUES	$ 6,103,440	$ 5,677,476
TOTAL COST OF SALES	5,549,257	5,181,979
Wholesale vehicle sales
SALES AND OPERATING REVENUES:
NET SALES AND OPERATING REVENUES	1,252,738	1,256,439
TOTAL COST OF SALES	1,096,167	1,099,311
Total other sales and revenues
SALES AND OPERATING REVENUES:
NET SALES AND OPERATING REVENUES	190,363	179,482
TOTAL COST OF SALES	$ 7,494	$ 40,212
NET SALES AND OPERATING REVENUES
Percentage of Sales
Item as a percent of net sales and operating revenues	100.00%	100.00%
TOTAL COST OF SALES
Percentage of Sales
Item as a percent of net sales and operating revenues	88.20%	88.90%
GROSS PROFIT
Percentage of Sales
Item as a percent of net sales and operating revenues	11.80%	11.10%
CARMAX AUTO FINANCE INCOME
Percentage of Sales
Item as a percent of net sales and operating revenues	1.90%	2.10%
Selling, general and administrative expenses
Percentage of Sales
Item as a percent of net sales and operating revenues	8.70%	9.00%
Depreciation and Amortization, Nonproduction
Percentage of Sales
Item as a percent of net sales and operating revenues	0.90%	0.90%
Interest expense
Percentage of Sales
Item as a percent of net sales and operating revenues	0.40%	0.40%
Other (income) expense
Percentage of Sales
Item as a percent of net sales and operating revenues	0.00%	0.00%
Earnings before income taxes
Percentage of Sales
Item as a percent of net sales and operating revenues	3.80%	2.90%
Income tax provision
Percentage of Sales
Item as a percent of net sales and operating revenues	1.00%	0.80%
NET EARNINGS
Percentage of Sales
Item as a percent of net sales and operating revenues	2.80%	2.10%
NET SALES AND OPERATING REVENUES | Used vehicle sales
Percentage of Sales
Item as a percent of net sales and operating revenues	80.90%	79.80%
NET SALES AND OPERATING REVENUES | Wholesale vehicle sales
Percentage of Sales
Item as a percent of net sales and operating revenues	16.60%	17.70%
NET SALES AND OPERATING REVENUES | Total other sales and revenues
Percentage of Sales
Item as a percent of net sales and operating revenues	2.50%	2.50%
TOTAL COST OF SALES | Used vehicle sales
Percentage of Sales
Item as a percent of net sales and operating revenues	73.50%	72.80%
TOTAL COST OF SALES | Wholesale vehicle sales
Percentage of Sales
Item as a percent of net sales and operating revenues	14.50%	15.50%
TOTAL COST OF SALES | Total other sales and revenues
Percentage of Sales
Item as a percent of net sales and operating revenues	0.10%	0.60%