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Goodwill and Other Intangible Assets - Schedule of Components of Amortized Intangible Assets , Includes in Intangible Assets, Net (Detail) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 02, 2021
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 68,635	$ 68,606
Accumulated Amortization	25,301	20,090
Non-compete agreements [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,287	4,287
Accumulated Amortization	2,792	2,075
Pharmacy customer prescription lists [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,233	4,233
Accumulated Amortization	2,095	1,521
Customer relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	57,937	57,937
Accumulated Amortization	18,822	15,160
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,068	1,068
Accumulated Amortization	987	837
Franchise Fees [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,110	1,081
Accumulated Amortization	$ 605	$ 497

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Topic 350
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+ References

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