XML 60 R50.htm IDEA: XBRL DOCUMENT
v3.19.3

Long-Term Debt - Covenants (Details) $ in Millions | Sep. 30, 2019 USD ($)
--- | ---
Line of Credit Facility [Line Items] |
Minimum Consolidated Liquidity Ratio | 119.00%
Minimum Consolidated Fixed Charge Coverage Ratio | 163.00%
Maximum Consolidated Total Lease Adjusted Leverage Ratio | 391.00%
2016 Credit Facilities |
Line of Credit Facility [Line Items] |
Net income and retained earnings free of restrictions | $ 223.2
Minimum EBTDAR to rent ratio | 503.00%
Required ratio |
Line of Credit Facility [Line Items] |
Minimum Consolidated Liquidity Ratio | 105.00%
Minimum Consolidated Fixed Charge Coverage Ratio | 120.00%
Maximum Consolidated Total Lease Adjusted Leverage Ratio | 575.00%
Required ratio | 2016 Credit Facilities |
Line of Credit Facility [Line Items] |
Minimum EBTDAR to rent ratio | 150.00%

X
- References No definition available. + Details
Name: | sah_DebtInstrumentCovenantComplianceUnrestrictedNetIncomeLossAndRetainedEarnings
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | sah_MaximumConsolidatedAggregateLeaseAdjustedLeverageRatio
Namespace Prefix: | sah_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | sah_MinimumConsolidatedFixedChargeCoverageRatio
Namespace Prefix: | sah_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | sah_MinimumConsolidatedLiquidityRatio
Namespace Prefix: | sah_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | sah_MinimumEBTDARToRentRatio
Namespace Prefix: | sah_
Data Type: | num:percentItemType
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 No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=sah_TwoThousandSixteenCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=sah_RequiredRatioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |