XML 61 R54.htm IDEA: XBRL DOCUMENT v3.24.3

Stock-Based Compensation - Summary of Allocation of Stock-Based Compensation Expense in Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 05, 2024	Oct. 07, 2023	Oct. 05, 2024	Oct. 07, 2023
Share-Based Payment Arrangement, Additional Disclosure [Abstract]
Restricted stock expense	$ 1,082	$ 1,771	$ 4,343	$ 8,468
Restricted stock unit expense	845	0	4,509	0
Performance share unit expense (benefit)	549	577	(800)	1,492
Income tax benefit	(686)	(593)	(2,129)	(3,502)
Stock-based compensation expense, net of tax	$ 1,790	$ 1,755	$ 5,923	$ 6,458

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