Segment Reporting - Revenues by Channel Reporting Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Segment Reporting Information [Line Items]
Revenue, net	$ 456.8	$ 455.6	$ 931.0	$ 883.3
All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	7.2
Water Direct/Water Exchange
Segment Reporting Information [Line Items]
Revenue, net	268.1	295.7	563.3	559.9
Water Direct/Water Exchange | All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	0.0
Water Refill/Water Filtration
Segment Reporting Information [Line Items]
Revenue, net	57.5	15.3	88.3	30.6
Water Refill/Water Filtration | All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	0.0
Other Water
Segment Reporting Information [Line Items]
Revenue, net	56.8	58.1	112.2	108.9
Other Water | All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	0.0
Water Dispensers
Segment Reporting Information [Line Items]
Revenue, net	20.8	0.0	26.7	0.0
Water Dispensers | All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	0.0
Other
Segment Reporting Information [Line Items]
Revenue, net	53.6	86.5	140.5	183.9
Other | All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	7.2
North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	363.9	323.5	714.6	621.6
North America | Water Direct/Water Exchange | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	225.8	229.7	463.2	436.2
North America | Water Refill/Water Filtration | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	51.2	8.8	74.9	17.7
North America | Other Water | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	42.5	41.6	84.7	81.3
North America | Water Dispensers | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	20.8	0.0	26.7	0.0
North America | Other | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	23.6	43.4	65.1	86.4
Rest of World | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	92.9	132.1	216.4	254.5
Rest of World | Water Direct/Water Exchange | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	42.3	66.0	100.1	123.7
Rest of World | Water Refill/Water Filtration | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	6.3	6.5	13.4	12.9
Rest of World | Other Water | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	14.3	16.5	27.5	27.6
Rest of World | Water Dispensers | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	0.0	0.0	0.0	0.0
Rest of World | Other | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	$ 30.0	$ 43.1	$ 75.4	$ 90.3