Acquisitions and Divestitures - Summary of Fair Value of Acquired Assets and Assumed Liabilities as of Acquisition Date (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Oct. 02, 2017	Apr. 28, 2017	Mar. 31, 2017	Jan. 27, 2017	Jan. 01, 2017	Oct. 28, 2016	Apr. 29, 2016	Apr. 01, 2016	Jan. 29, 2016	Jan. 03, 2016
Business Acquisition [Line Items]
Goodwill	$ 169,316					$ 144,586					$ 117,954
Current liabilities (acquisition related contingent consideration)	23,339					15,782
Other liabilities (acquisition related contingent consideration)	357,952					237,655
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)					1,158
Goodwill					1,544
Total acquired assets					60,167
Current liabilities (acquisition related contingent consideration)					1,350
Other current liabilities					324
Other liabilities (acquisition related contingent consideration)					26,377
Other liabilities					43
Total assumed liabilities					28,094
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					22,000
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					$ 1,500
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				20,952
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)				3,227
Goodwill				2,527
Total acquired assets				163,979
Current liabilities (acquisition related contingent consideration)				2,958
Other current liabilities				3,760
Other liabilities (acquisition related contingent consideration)				49,739
Other liabilities				2,953
Total assumed liabilities				59,410
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				46,750
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				$ 1,750
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			4,068
Accounts receivable from The Coca-Cola Company			2,552
Property, plant and equipment			52,263
Other assets (including deferred taxes)			4,369
Goodwill			17,804
Total acquired assets			116,213
Current liabilities (acquisition related contingent consideration)			1,546
Other current liabilities			2,860
Other liabilities (acquisition related contingent consideration)			26,604
Other liabilities			2,005
Total assumed liabilities			33,015
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			19,500
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			$ 1,000
October 2017 Transactions Acquisitions [Member]
Business Acquisition [Line Items]
Cash		$ 191
Inventories		14,850
Prepaid expenses and other current assets		4,754
Accounts receivable from The Coca-Cola Company		2,391
Property, plant and equipment		70,645
Other assets (including deferred taxes)		889
Goodwill		13,992
Total acquired assets		237,412
Current liabilities (acquisition related contingent consideration)		1,458
Other current liabilities		6,492
Other liabilities (acquisition related contingent consideration)		18,848
Other liabilities		95
Total assumed liabilities		26,893
October 2017 Transactions Acquisitions [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets		124,750
October 2017 Transactions Acquisitions [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets		$ 4,950
2017 Acquisition [Member]
Business Acquisition [Line Items]
Cash	612
Inventories	56,309
Prepaid expenses and other current assets	15,094
Accounts receivable from The Coca-Cola Company	7,792
Property, plant and equipment	230,254
Other assets (including deferred taxes)	9,643
Goodwill	35,867
Total acquired assets	577,771
Current liabilities (acquisition related contingent consideration)	7,312
Other current liabilities	13,436
Other liabilities (acquisition related contingent consideration)	121,568
Other liabilities	5,096
Total assumed liabilities	147,412
2017 Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets	213,000
2017 Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets	$ 9,200
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							8,473
Total acquired assets							183,966
Current liabilities (acquisition related contingent consideration)							3,973
Other current liabilities							8,513
Other liabilities (acquisition related contingent consideration)							71,237
Other liabilities							573
Total assumed liabilities							84,296
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							79,900
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							$ 2,750
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						28,199
Total acquired assets						436,089
Current liabilities (acquisition related contingent consideration)						6,383
Other current liabilities						18,817
Accounts payable to The Coca-Cola Company						650
Other liabilities (acquisition related contingent consideration)						136,866
Other liabilities						3,474
Total assumed liabilities						166,190
2016 Acquisition [Member] | Distribution Agreements [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets						102,650
2016 Acquisition [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Other identifiable intangible assets						$ 4,750