Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions		12 Months Ended
	Apr. 30, 2008 shares	Jan. 01, 2017 USD ($) Segment Vote	Jan. 03, 2016 USD ($)	Dec. 28, 2014 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment		4
Number of reportable segments | Segment		2
Period of collection of trade account receivable		30 days
Amortization expenses of internal-use software		$ 10.9	$ 9.3	$ 7.6
Percentage of maximum tax benefit		50.00%
Cost of marketing programs and sales incentives		$ 117.0	71.4	61.7
Shipping and handling costs		$ 314.3	222.9	211.6
Number of votes per share | Vote		1
Percentage control of total voting power		86.00%
Class B Common Stock is convertible into Common Stock Ratio		one-for-one per share
Reclassification of debt issuance costs from other assets to long-term debt			3.1
Reclassification of debt issuance costs from prepaid expenses and other current assets to long-term debt			1.1
Class B Common Stock [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Performance units authorized | shares	400,000
Common B stock per performance unit | shares	1
Term of performance unit award agreement	10 years
Maximum overall goal achievement factor	100.00%
Annual performance units granted | shares	40,000
Number of votes per share | Vote		20
Nonalcoholic Beverages [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of service revenue		1.00%
Delivery fees in net sales		$ 6.0	$ 6.3	$ 6.2
All Other [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment		3
Percentage of third party freight revenue		2.00%