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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	Dec. 29, 2018	Dec. 30, 2017
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 77,519	$ 78,521
Accumulated Amortization	18,338	13,879
Non-compete agreements [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,358	3,408
Accumulated Amortization	886	397
Favorable leases [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,738	8,251
Accumulated Amortization	4,282	4,332
Pharmacy customer prescription lists [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,354	6,810
Accumulated Amortization	4,377	4,210
Customer relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	57,937	57,937
Accumulated Amortization	7,835	4,173
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,068	1,068
Accumulated Amortization	536	386
Franchise fees and other [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,064	1,047
Accumulated Amortization	$ 422	$ 381

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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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