XML 103 R87.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Commitments and Contingencies - Financial Covenants Related to Amended Subordination and Guaranty Agreement (Details) | Dec. 31, 2018
--- | ---
Subordination Agreement And Additional Financial Covenant [Line Items] |
Minimum Consolidated Liquidity Ratio | 110.00%
Minimum Consolidated Fixed Charge Coverage Ratio | 143.00%
Maximum Consolidated Total Lease Adjusted Leverage Ratio | 525.00%
Minimum EBTDAR to rent ratio | 336.00%
Required ratio |
Subordination Agreement And Additional Financial Covenant [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%
Minimum EBTDAR to rent ratio | 150.00%

X
- Definition Maximum consolidated total lease adjusted leverage ratio. + References No definition available. + Details
Name: | sah_MaximumConsolidatedAggregateLeaseAdjustedLeverageRatio
Namespace Prefix: | sah_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Minimum consolidated fixed charge coverage ratio. + References No definition available. + Details
Name: | sah_MinimumConsolidatedFixedChargeCoverageRatio
Namespace Prefix: | sah_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Minimum EBTDAR to rent ratio. + 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 pertaining to subordination agreements and additional financial covenants. + References No definition available. + Details
Name: | sah_SubordinationAgreementAndAdditionalFinancialCovenantLineItems
Namespace Prefix: | sah_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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