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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. 02, 2021	Dec. 28, 2019
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 68,606	$ 72,757
Accumulated Amortization	20,090	18,580
Non-compete agreements [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,287	4,438
Accumulated Amortization	2,075	1,493
Pharmacy customer prescription lists [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,233	8,200
Accumulated Amortization	1,521	4,481
Customer relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	57,937	57,937
Accumulated Amortization	15,160	11,497
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,068	1,068
Accumulated Amortization	837	687
Franchise fees and other [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,081	1,114
Accumulated Amortization	$ 497	$ 422

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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