Acquisitions and Divestitures - Summary of Fair Value Acquired Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands	Jul. 02, 2017	Apr. 28, 2017	Mar. 31, 2017	Jan. 27, 2017	Jan. 01, 2017	Oct. 28, 2016	Apr. 29, 2016	Jan. 29, 2016	Jul. 03, 2016	Jan. 03, 2016
Acquired Intangible Assets [Line Items]
Franchise rights	$ 0				$ 533,040				$ 533,040	$ 527,540
Bloomington and Indianapolis, Indiana and Columbus and Mansfield, Ohio Expansion Territories Acquisitions and Indianapolis and Portland, Indiana Expansion Facilities Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets			$ 20,400
Anderson, Fort Wayne, Lafayette, South Bend and Terre Haute, Indiana Expansion Territories Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets				$ 10,650
Akron, Elyria, Toledo, Willoughby and Youngstown, Ohio Expansion Territories Acquisitions and Twinsburg, Ohio Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets		$ 9,550
2017 Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets	40,600
Easton and Salisbury, Maryland and Richmond and Yorktown, Virginia Expansion Territories Acquisitions and Sandston, Virginia Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets								$ 1,300
Baltimore, Hagerstown and Cumberland, Maryland Expansion Territories Acquisitions and Silver Spring and Baltimore, Maryland Expansion Facilities Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets							$ 23,450
Cincinnati, Dayton, Lima and Portsmouth, Ohio and Louisa, Kentucky Expansion Territories Acquisitions and Cincinnati, Ohio Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets						$ 66,500
2016 Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets					91,250
Distribution Agreements [Member] | Bloomington and Indianapolis, Indiana and Columbus and Mansfield, Ohio Expansion Territories Acquisitions and Indianapolis and Portland, Indiana Expansion Facilities Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets			$ 18,900
Estimated useful life			40 years
Distribution Agreements [Member] | Anderson, Fort Wayne, Lafayette, South Bend and Terre Haute, Indiana Expansion Territories Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets				$ 9,300
Estimated useful life				40 years
Distribution Agreements [Member] | Akron, Elyria, Toledo, Willoughby and Youngstown, Ohio Expansion Territories Acquisitions and Twinsburg, Ohio Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets		$ 8,600
Estimated useful life		40 years
Distribution Agreements [Member] | 2017 Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets	$ 36,800
Estimated useful life	40 years
Distribution Agreements [Member] | Easton and Salisbury, Maryland and Richmond and Yorktown, Virginia Expansion Territories Acquisitions and Sandston, Virginia Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets								$ 750
Estimated useful life								40 years
Distribution Agreements [Member] | Baltimore, Hagerstown and Cumberland, Maryland Expansion Territories Acquisitions and Silver Spring and Baltimore, Maryland Expansion Facilities Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets							$ 22,000
Estimated useful life							40 years
Distribution Agreements [Member] | Cincinnati, Dayton, Lima and Portsmouth, Ohio and Louisa, Kentucky Expansion Territories Acquisitions and Cincinnati, Ohio Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets						$ 63,900
Estimated useful life						40 years
Distribution Agreements [Member] | 2016 Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets					$ 86,650
Estimated useful life					40 years
Customer Lists [Member] | Bloomington and Indianapolis, Indiana and Columbus and Mansfield, Ohio Expansion Territories Acquisitions and Indianapolis and Portland, Indiana Expansion Facilities Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets			$ 1,500
Estimated useful life			12 years
Customer Lists [Member] | Anderson, Fort Wayne, Lafayette, South Bend and Terre Haute, Indiana Expansion Territories Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets				$ 1,350
Estimated useful life				12 years
Customer Lists [Member] | Akron, Elyria, Toledo, Willoughby and Youngstown, Ohio Expansion Territories Acquisitions and Twinsburg, Ohio Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets		$ 950
Estimated useful life		12 years
Customer Lists [Member] | 2017 Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets	$ 3,800
Estimated useful life	12 years
Customer Lists [Member] | Easton and Salisbury, Maryland and Richmond and Yorktown, Virginia Expansion Territories Acquisitions and Sandston, Virginia Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets								$ 550
Estimated useful life								12 years
Customer Lists [Member] | Baltimore, Hagerstown and Cumberland, Maryland Expansion Territories Acquisitions and Silver Spring and Baltimore, Maryland Expansion Facilities Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets							$ 1,450
Estimated useful life							12 years
Customer Lists [Member] | Cincinnati, Dayton, Lima and Portsmouth, Ohio and Louisa, Kentucky Expansion Territories Acquisitions and Cincinnati, Ohio Expansion Facility Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets						$ 2,600
Estimated useful life						12 years
Customer Lists [Member] | 2016 Acquisition [Member]
Acquired Intangible Assets [Line Items]
Total other acquired identifiable intangible assets					$ 4,600
Estimated useful life					12 years