XML 60 R45.htm IDEA: XBRL DOCUMENT
v3.21.2

Auto Loan Receivables (Past Due Receivables) (Details) - USD ($) $ in Millions | May 31, 2021 | Feb. 28, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss, Current | $ 14,162.6 | $ 13,454.7
Total ending managed receivables | 14,465.9 | 13,847.2
Financing Receivable, Past Due | $ 303.3 | $ 392.5
Past due receivables as a percentage of total ending managed receivables | 2.10% | 2.83%
Total ending managed receivables, percent |  |
Financing Receivable, Past Due [Line Items] |  |
Item as percent of total ending managed receivables | 100.00% | 100.00%
Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Past due receivables as a percentage of total ending managed receivables | 97.90% | 97.17%
Thirty One To Sixty Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | $ 198.6 | $ 246.2
Past due receivables as a percentage of total ending managed receivables | 1.37% | 1.78%
Sixty One To Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | $ 84.7 | $ 119.9
Past due receivables as a percentage of total ending managed receivables | 0.59% | 0.86%
Greater Than Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | $ 20.0 | $ 26.4
Past due receivables as a percentage of total ending managed receivables | 0.14% | 0.19%
Credit Grade A |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss, Current | $ 7,038.9 | $ 6,847.2
Total ending managed receivables | 7,058.5 | 6,874.1
Financing Receivable, Past Due | 19.6 | 26.9
Credit Grade A | Thirty One To Sixty Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 12.2 | 17.3
Credit Grade A | Sixty One To Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 5.7 | 7.0
Credit Grade A | Greater Than Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 1.7 | 2.6
Credit Grade B |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss, Current | 5,143.3 | 4,840.3
Total ending managed receivables | 5,273.0 | 5,008.9
Financing Receivable, Past Due | 129.7 | 168.6
Credit Grade B | Thirty One To Sixty Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 86.2 | 108.9
Credit Grade B | Sixty One To Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 34.6 | 48.4
Credit Grade B | Greater Than Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 8.9 | 11.3
Credit Grade C And Other |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss, Current | 1,980.4 | 1,767.2
Total ending managed receivables | 2,134.4 | 1,964.2
Financing Receivable, Past Due | 154.0 | 197.0
Credit Grade C And Other | Thirty One To Sixty Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 100.2 | 120.0
Credit Grade C And Other | Sixty One To Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | 44.4 | 64.5
Credit Grade C And Other | Greater Than Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Past Due | $ 9.4 | $ 12.5

X
- Definition Item as percent of total ending managed receivables + References No definition available. + Details
Name: | kmx_ItemAsPercentOfTotalEndingManagedReceivables
Namespace Prefix: | kmx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Past due receivables as a percentage of total ending managed receivables. + References No definition available. + Details
Name: | kmx_PastDueReceivablesAsPercentageOfTotalEndingManagedReceivables
Namespace Prefix: | kmx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of financing receivable past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before allowance for credit loss, of financing receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4531-111522 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(a),(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_NotesAndLoansReceivableGrossCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=kmx_ManagedReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=kmx_ThirtyOneToSixtyDaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=kmx_SixtyOneToNinetyDaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=kmx_GreaterThanNinetyDaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=kmx_CreditGradeAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=kmx_CreditGradeBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=kmx_CreditGradeCAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |