Segment Reporting - Additional Information (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2018 USD ($) Segment	Sep. 29, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jul. 01, 2017 USD ($)	Apr. 01, 2017 USD ($)	Dec. 29, 2018 USD ($) Segment	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Operating income	$ 4.2	$ 27.8	$ 20.7	$ 6.1	$ (0.1)	$ 22.3	$ 16.5	$ 5.2	$ 58.8	$ 43.9	$ 9.5
Number of reporting segments | Segment	3								3
Operating Segments | Route Based Services
Segment Reporting Information [Line Items]
Operating income									$ 84.7	74.0	42.4
Operating Segments | Coffee, Tea and Extract Solutions
Segment Reporting Information [Line Items]
Operating income									16.1	15.9	5.3
Operating Segments | All Other
Segment Reporting Information [Line Items]
Operating income									$ (42.0)	(46.0)	(38.2)
Restatement Adjustment | Operating Segments | Route Based Services
Segment Reporting Information [Line Items]
Operating income										2.0	1.2
Restatement Adjustment | Operating Segments | Coffee, Tea and Extract Solutions
Segment Reporting Information [Line Items]
Operating income										0.2
Restatement Adjustment | Operating Segments | All Other
Segment Reporting Information [Line Items]
Operating income										$ (2.2)	$ (1.2)
Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Concentration risk percentage									10.00%