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Accumulated Other Comprehensive Loss (Changes In and Reclassifications Out of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 31, 2017 | Aug. 31, 2016 | Aug. 31, 2017 | Aug. 31, 2016
Total amortization reclassifications recognized in net pension expense | $ 453 | $ 386 | $ 907 | $ 773
Tax expense | (178) | (138) | (358) | (276)
Amortization reclassifications recognized in net pension expense, net of tax | 275 | 248 | 549 | 497
Net change in retirement benefit plan unrecognized actuarial losses, net of tax | 275 | 248 | 549 | 497
Effective portion of changes in fair value | (3,712) | (3,129) | (7,938) | (798)
Tax benefit | 1,461 | 1,231 | 3,125 | 315
Effective portion of changes in fair value, net of tax | (2,251) | (1,898) | (4,813) | (483)
Reclassifications to CarMax Auto Finance income | 952 | 3,120 | 1,965 | 5,933
Tax expense | (374) | (1,227) | (773) | (2,333)
Reclassification of hedge losses, net of tax | 578 | 1,893 | 1,192 | 3,600
Net change in cash flow hedge unrecognized losses, net of tax | (1,673) | (5) | (3,621) | 3,117
Other comprehensive income (loss), net of taxes | (1,398) | 243 | (3,072) | 3,614
Cost of sales |  |  |  |
Total amortization reclassifications recognized in net pension expense | 187 | 160 | 372 | 317
CarMax Auto Finance income |  |  |  |
Total amortization reclassifications recognized in net pension expense | 11 | 9 | 22 | 18
Selling, general and administrative expenses |  |  |  |
Total amortization reclassifications recognized in net pension expense | $ 255 | $ 217 | $ 513 | $ 438

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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 + Details
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- Definition Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss), attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569643-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 + Details
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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569643-111683 + Details
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