Acquisitions and Divestitures - Summary of Fair Value Acquired Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands	Oct. 30, 2015	May. 01, 2015	Feb. 27, 2015	Jan. 30, 2015	Oct. 24, 2014	May. 23, 2014	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Acquired Intangible Assets [Line Items]
Franchise rights							$ 527,540	$ 520,672	$ 520,672
Johnson City And Morristown Territory Acquisition [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition						$ 13,800
Knoxville Tennessee Territory Acquisition [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition					$ 37,400
Cleveland and Cookeville, Tennessee Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition				$ 12,950
Louisville, Kentucky and Evansville, Indiana [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition			$ 20,350
Paducah And Pikeville Kentucky Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		$ 1,700
Norfolk, Fredericksburg and Staunton, Virginia; and Elizabeth City, North Carolina Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition	$ 49,100
Lexington Expansion [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		1,000
Franchise rights		18,200
Total		19,200
Distribution Agreements [Member] | Johnson City And Morristown Territory Acquisition [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition						$ 13,200
Estimated useful life						40 years
Distribution Agreements [Member] | Knoxville Tennessee Territory Acquisition [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition					$ 36,400
Estimated useful life					40 years
Distribution Agreements [Member] | Cleveland and Cookeville, Tennessee Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition				$ 12,400
Estimated useful life				40 years
Distribution Agreements [Member] | Louisville, Kentucky and Evansville, Indiana [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition			$ 19,200
Estimated useful life			40 years
Distribution Agreements [Member] | Paducah And Pikeville Kentucky Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		$ 1,500
Estimated useful life		40 years
Distribution Agreements [Member] | Norfolk, Fredericksburg and Staunton, Virginia; and Elizabeth City, North Carolina Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition	$ 47,900
Estimated useful life	40 years
Distribution Agreements [Member] | Lexington Expansion [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		$ 200					$ 200
Estimated useful life		40 years
Customer Lists [Member] | Johnson City And Morristown Territory Acquisition [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition						$ 600
Estimated useful life						12 years
Customer Lists [Member] | Knoxville Tennessee Territory Acquisition [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition					$ 1,000
Estimated useful life					12 years
Customer Lists [Member] | Cleveland and Cookeville, Tennessee Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition				$ 550
Estimated useful life				12 years
Customer Lists [Member] | Louisville, Kentucky and Evansville, Indiana [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition			$ 1,150
Estimated useful life			12 years
Customer Lists [Member] | Paducah And Pikeville Kentucky Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		$ 200
Estimated useful life		12 years
Customer Lists [Member] | Norfolk, Fredericksburg and Staunton, Virginia; and Elizabeth City, North Carolina Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition	$ 1,200
Estimated useful life	12 years
Customer Lists [Member] | Lexington Expansion [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		$ 800
Estimated useful life		12 years