XML 67 R55.htm IDEA: XBRL DOCUMENT
v3.25.1

FINANCIAL INSTRUMENTS AND FAIR VALUE - Interest Rate Swap Agreements (Details) - USD ($) | Mar. 31, 2025 | Jan. 31, 2022 | May 31, 2021 | Jul. 31, 2020
--- | --- | --- | --- | ---
Interest Rate Swap, January 2022 |  |  |  |
Derivative [Line Items] |  |  |  |
Notional Principal at Inception | $ 255,000,000.0 | $ 300,000,000.0 |  |
Notional Principal at Maturity |  | 228,800,000 |  |
Interest Rate Swap, January 2022 |  |  |  |
Derivative [Line Items] |  |  |  |
Notional Principal at Inception | 250,000,000.0 | 250,000,000.0 |  |
Notional Principal at Maturity |  | $ 250,000,000.0 |  |
Interest Rate Swap, May 2021 |  |  |  |
Derivative [Line Items] |  |  |  |
Notional Principal at Inception | 156,700,000 |  | $ 184,400,000 |
Notional Principal at Maturity |  |  | $ 110,600,000 |
Interest Rate Swap, July 20 |  |  |  |
Derivative [Line Items] |  |  |  |
Notional Principal at Inception | 69,700,000 |  |  | $ 93,500,000
Notional Principal at Maturity |  |  |  | 50,600,000
Interest Rate Swap, July 20 |  |  |  |
Derivative [Line Items] |  |  |  |
Notional Principal at Inception | $ 61,300,000 |  |  | 85,500,000
Notional Principal at Maturity |  |  |  | $ 57,300,000

X
- Definition Derivative Liability, Notional Amount, at Maturity + References No definition available. + Details
Name: | abg_DerivativeLiabilityNotionalAmountAtMaturity
Namespace Prefix: | abg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5C -Subparagraph (SX 210.12-13C(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5C Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SX 210.12-13(Column D)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5A -Subparagraph (SX 210.12-13A(Column D)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5B -Subparagraph (SX 210.12-13B(Column A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5B Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
Name: | us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=abg_InterestRateSwapJanuary2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=abg_InterestRateSwapMay2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=abg_InterestRateSwapJuly2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=abg_InterestRateSwapJuly20201Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |