XML 61 R54.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Stock-Based Compensation - Summary of Allocation of Stock-Based Compensation Expense in Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 13, 2024 | Jul. 15, 2023 | Jul. 13, 2024 | Jul. 15, 2023
Share-Based Payment Arrangement, Additional Disclosure [Abstract] |  |  |  |
Restricted stock expense | $ 1,179 | $ 1,896 | $ 3,261 | $ 6,697
Restricted stock unit expense | 874 | 0 | 3,664 | 0
Performance share unit (benefit) expense | (197) | 569 | (1,349) | 915
Income tax benefit | (517) | (742) | (1,442) | (2,909)
Stock-based compensation expense, net of tax | $ 1,339 | $ 1,723 | $ 4,134 | $ 4,703

X
- Definition Performance Share Unit Benefit Expense + References No definition available. + Details
Name: | sptn_PerformanceShareUnitBenefitExpense
Namespace Prefix: | sptn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Restricted Stock Unit Expense + References No definition available. + Details
Name: | sptn_RestrictedStockUnitExpense
Namespace Prefix: | sptn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after tax, of expense for award under share-based payment arrangement. + References No definition available. + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_RestrictedStockExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration