XML 101 R85.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Commitments and Contingencies - Summary of Lease Exit Accruals (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract] |
Beginning balance | $ 6,478
Lease exit expense | 1,709
Payments | (2,973)
Lease buyout/other | (580)
Ending balance | 4,634
Component of lease exit expense in interest expense, other, net | 100
Component of lease exit expense in selling, general and administrative expenses | 1,200
Component of lease exit expense in income (loss) from operations and the sale of dealerships | 400
Component of lease exit payments in selling, general and administrative expenses | 1,000
Component of lease exit payments in income (loss) from operations and the sale of dealerships | $ 2,000

X
- Definition Lease exit accruals. + References No definition available. + Details
Name: | sah_LeaseExitAccruals
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lease exit buyout other. + References No definition available. + Details
Name: | sah_LeaseExitBuyoutOther
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Lease exit expense. + References No definition available. + Details
Name: | sah_LeaseExitExpense
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lease exit expense interest. + References No definition available. + Details
Name: | sah_LeaseExitExpenseInterest
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lease exit expense selling general and administrative. + References No definition available. + Details
Name: | sah_LeaseExitExpenseSellingGeneralAndAdministrative
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lease exit income (expense) discontinued operations. + References No definition available. + Details
Name: | sah_LeaseExitIncomeExpenseDiscontinuedOperations
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Lease exit payment. + References No definition available. + Details
Name: | sah_LeaseExitPayment
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Lease exit payment discontinued operations. + References No definition available. + Details
Name: | sah_LeaseExitPaymentDiscontinuedOperations
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lease exit payment selling general and administrative. + References No definition available. + Details
Name: | sah_LeaseExitPaymentSellingGeneralAndAdministrative
Namespace Prefix: | sah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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