Business and Recent Accounting Pronouncements - Additional Information (Detail) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017 USD ($) $ / shares	Jul. 02, 2016 USD ($) $ / shares	Jul. 01, 2017 USD ($) Customer $ / shares	Jul. 02, 2016 USD ($) $ / shares
Business And Basis Of Presentation [Line Items]
Income tax expense (benefit)	$ (1.4)	$ 2.3	$ (2.5)	$ 11.8
Increase in net income per common share | $ / shares	$ (0.18)	$ 0.06	$ (0.44)	$ 0.04
Water & Coffee Solutions [Member] | Selling, General and Administrative Expenses [Member]
Business And Basis Of Presentation [Line Items]
Shipping and handling costs	$ 109.5	$ 78.8	$ 215.8	$ 156.6
Adjustments for New Accounting Pronouncement [Member]
Business And Basis Of Presentation [Line Items]
Income tax expense (benefit)				$ 0.5
Increase in net income per common share | $ / shares				$ 0.01
Direct-to-Consumer Products [Member] | Minimum [Member]
Business And Basis Of Presentation [Line Items]
Number of customers | Customer			2,300,000