Acquisitions and Divestitures - Summary of Fair Value of Acquired Assets and Assumed Liabilities as of Acquisition Date (Detail) - USD ($) $ in Thousands	Oct. 01, 2017	Apr. 28, 2017	Mar. 31, 2017	Jan. 27, 2017	Jan. 01, 2017	Oct. 28, 2016	Oct. 02, 2016	Apr. 29, 2016	Apr. 01, 2016	Jan. 29, 2016	Jan. 03, 2016
Business Acquisition [Line Items]
Goodwill	$ 152,701				$ 144,586		$ 141,271				$ 117,954
Current liabilities (acquisition related contingent consideration)	19,491				15,782
Other liabilities (acquisition related contingent consideration)	289,442				237,655
Bloomington and Indianapolis, Indiana and Columbus and Mansfield, Ohio Expansion Territories Acquisitions and Indianapolis and Portland, Indiana Expansion Facilities Acquisitions [Member]
Business Acquisition [Line Items]
Cash			$ 211
Inventories			21,108
Prepaid expenses and other current assets			5,117
Accounts receivable from The Coca-Cola Company			1,807
Property, plant and equipment			81,638
Other assets (including deferred taxes)			4,363
Goodwill			8,605
Total acquired assets			143,249
Current liabilities (acquisition related contingent consideration)			1,921
Other current liabilities			3,760
Other liabilities (acquisition related contingent consideration)			26,260
Other liabilities			2,604
Total assumed liabilities			34,545
Bloomington and Indianapolis, Indiana and Columbus and Mansfield, Ohio Expansion Territories Acquisitions and Indianapolis and Portland, Indiana Expansion Facilities Acquisitions [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets			18,900
Bloomington and Indianapolis, Indiana and Columbus and Mansfield, Ohio Expansion Territories Acquisitions and Indianapolis and Portland, Indiana Expansion Facilities Acquisitions [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets			$ 1,500
Akron, Elyria, Toledo, Willoughby and Youngstown, Ohio Expansion Territories Acquisitions and Twinsburg, Ohio Expansion Facility Acquisition [Member]
Business Acquisition [Line Items]
Cash		$ 103
Inventories		14,554
Prepaid expenses and other current assets		4,350
Accounts receivable from The Coca-Cola Company		1,000
Property, plant and equipment		53,818
Other assets (including deferred taxes)		482
Goodwill		9,630
Total acquired assets		93,487
Current liabilities (acquisition related contingent consideration)		227
Other current liabilities		1,186
Other liabilities (acquisition related contingent consideration)		3,543
Other liabilities		626
Total assumed liabilities		5,582
Akron, Elyria, Toledo, Willoughby and Youngstown, Ohio Expansion Territories Acquisitions and Twinsburg, Ohio Expansion Facility Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets		8,600
Akron, Elyria, Toledo, Willoughby and Youngstown, Ohio Expansion Territories Acquisitions and Twinsburg, Ohio Expansion Facility Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets		$ 950
2017 Acquisition [Member]
Business Acquisition [Line Items]
Cash	421
Inventories	41,615
Prepaid expenses and other current assets	10,622
Accounts receivable from The Coca-Cola Company	3,849
Property, plant and equipment	161,164
Other assets (including deferred taxes)	5,731
Goodwill	19,035
Total acquired assets	283,037
Current liabilities (acquisition related contingent consideration)	2,875
Other current liabilities	5,270
Other liabilities (acquisition related contingent consideration)	43,211
Other liabilities	3,469
Total assumed liabilities	54,825
2017 Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets	36,800
2017 Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets	$ 3,800
Anderson, Fort Wayne, Lafayette, South Bend and Terre Haute, Indiana Expansion Territories Acquisitions [Member]
Business Acquisition [Line Items]
Cash				$ 107
Inventories				5,953
Prepaid expenses and other current assets				1,155
Accounts receivable from The Coca-Cola Company				1,042
Property, plant and equipment				25,708
Other assets (including deferred taxes)				886
Goodwill				800
Total acquired assets				46,301
Current liabilities (acquisition related contingent consideration)				727
Other current liabilities				324
Other liabilities (acquisition related contingent consideration)				13,408
Other liabilities				239
Total assumed liabilities				14,698
Anderson, Fort Wayne, Lafayette, South Bend and Terre Haute, Indiana Expansion Territories Acquisitions [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets				9,300
Anderson, Fort Wayne, Lafayette, South Bend and Terre Haute, Indiana Expansion Territories Acquisitions [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets				$ 1,350
Easton and Salisbury, Maryland and Richmond and Yorktown, Virginia Expansion Territories Acquisitions and Sandston, Virginia Expansion Facility Acquisition [Member]
Business Acquisition [Line Items]
Cash										$ 179
Inventories										10,159
Prepaid expenses and other current assets										2,775
Accounts receivable from The Coca-Cola Company										1,121
Property, plant and equipment										46,149
Other assets (including deferred taxes)										2,351
Goodwill										9,396
Total acquired assets										73,430
Current liabilities (acquisition related contingent consideration)										361
Other current liabilities										591
Accounts payable to The Coca-Cola Company										650
Other liabilities (acquisition related contingent consideration)										6,144
Total assumed liabilities										7,746
Easton and Salisbury, Maryland and Richmond and Yorktown, Virginia Expansion Territories Acquisitions and Sandston, Virginia Expansion Facility Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets										750
Easton and Salisbury, Maryland and Richmond and Yorktown, Virginia Expansion Territories Acquisitions and Sandston, Virginia Expansion Facility Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets										$ 550
Alexandria, Virginia and Capitol Heights and La Plata, Maryland Expansion Territories Acquisitions [Member]
Business Acquisition [Line Items]
Cash									$ 219
Inventories									3,748
Prepaid expenses and other current assets									1,945
Accounts receivable from The Coca-Cola Company									1,162
Property, plant and equipment									54,135
Other assets (including deferred taxes)									1,541
Goodwill									1,962
Total acquired assets									64,712
Current liabilities (acquisition related contingent consideration)									742
Other current liabilities									4,231
Other liabilities (acquisition related contingent consideration)									23,924
Other liabilities									266
Total assumed liabilities									$ 29,163
Baltimore, Hagerstown and Cumberland, Maryland Expansion Territories Acquisitions and Silver Spring and Baltimore, Maryland Expansion Facilities Acquisitions [Member]
Business Acquisition [Line Items]
Cash								$ 161
Inventories								13,850
Prepaid expenses and other current assets								3,774
Accounts receivable from The Coca-Cola Company								1,126
Property, plant and equipment								57,738
Other assets (including deferred taxes)								5,514
Goodwill								8,368
Total acquired assets								113,981
Current liabilities (acquisition related contingent consideration)								1,307
Other current liabilities								5,482
Other liabilities (acquisition related contingent consideration)								35,561
Other liabilities								2,635
Total assumed liabilities								44,985
Baltimore, Hagerstown and Cumberland, Maryland Expansion Territories Acquisitions and Silver Spring and Baltimore, Maryland Expansion Facilities Acquisitions [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets								22,000
Baltimore, Hagerstown and Cumberland, Maryland Expansion Territories Acquisitions and Silver Spring and Baltimore, Maryland Expansion Facilities Acquisitions [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets								$ 1,450
Cincinnati, Dayton, Lima and Portsmouth, Ohio and Louisa, Kentucky Expansion Territories Acquisitions and Cincinnati, Ohio Expansion Facility Acquisition [Member]
Business Acquisition [Line Items]
Cash						$ 150
Inventories						18,513
Prepaid expenses and other current assets						4,228
Accounts receivable from The Coca-Cola Company						1,327
Property, plant and equipment						67,943
Other assets (including deferred taxes)						682
Goodwill						8,343
Total acquired assets						167,686
Current liabilities (acquisition related contingent consideration)						3,318
Other current liabilities						8,513
Other liabilities (acquisition related contingent consideration)						57,066
Other liabilities						573
Total assumed liabilities						69,470
Cincinnati, Dayton, Lima and Portsmouth, Ohio and Louisa, Kentucky Expansion Territories Acquisitions and Cincinnati, Ohio Expansion Facility Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets						63,900
Cincinnati, Dayton, Lima and Portsmouth, Ohio and Louisa, Kentucky Expansion Territories Acquisitions and Cincinnati, Ohio Expansion Facility Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets						$ 2,600
2016 Acquisition [Member]
Business Acquisition [Line Items]
Cash					709
Inventories					46,270
Prepaid expenses and other current assets					12,722
Accounts receivable from The Coca-Cola Company					4,736
Property, plant and equipment					225,965
Other assets (including deferred taxes)					10,088
Goodwill					28,069
Total acquired assets					419,809
Current liabilities (acquisition related contingent consideration)					5,728
Other current liabilities					18,817
Accounts payable to The Coca-Cola Company					650
Other liabilities (acquisition related contingent consideration)					122,695
Other liabilities					3,474
Total assumed liabilities					151,364
2016 Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets					86,650
2016 Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets					$ 4,600