Acquisitions and Divestitures - Summary of Fair Value Acquired Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands	May. 01, 2015	Feb. 27, 2015	Jan. 30, 2015	Oct. 24, 2014	May. 23, 2014	Sep. 27, 2015	Dec. 28, 2014	Sep. 28, 2014
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			$ 17,750
Louisville, Kentucky and Evansville, Indiana [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition		$ 29,600
Paducah And Pikeville Kentucky Territory Acquisitions [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition	$ 1,700
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]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition						47,100		$ 13,200
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			$ 17,200
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		$ 28,400
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] | 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		$ 1,200
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] | Lexington Expansion [Member]
Acquired Intangible Assets [Line Items]
Additions to other identifiable intangible related to acquisition	$ 800
Estimated useful life	12 years