Segment Reporting - Revenues by Channel Reporting Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Segment Reporting Information [Line Items]
Total	$ 571.4	$ 526.1	$ 1,097.5	$ 1,004.5
Water Direct/Water Exchange
Segment Reporting Information [Line Items]
Total	386.5	323.0	723.8	610.6
Water Refill/Water Filtration
Segment Reporting Information [Line Items]
Total	56.2	53.1	107.1	106.1
Other Water
Segment Reporting Information [Line Items]
Total	44.1	64.6	94.5	120.9
Water Dispensers
Segment Reporting Information [Line Items]
Total	18.5	17.6	32.7	32.6
Other
Segment Reporting Information [Line Items]
Total	66.1	67.8	139.4	134.3
Other
Segment Reporting Information [Line Items]
Total	64.8	65.4	129.5	123.3
Other | Water Direct/Water Exchange
Segment Reporting Information [Line Items]
Total	11.7	10.4	22.5	18.9
Other | Water Refill/Water Filtration
Segment Reporting Information [Line Items]
Total	0.7	0.2	1.2	0.2
Other | Other Water
Segment Reporting Information [Line Items]
Total	21.5	22.0	37.5	37.2
Other | Water Dispensers
Segment Reporting Information [Line Items]
Total	0.0	0.0	0.0	0.0
Other | Other
Segment Reporting Information [Line Items]
Total	30.9	32.8	68.3	67.0
Eliminations
Segment Reporting Information [Line Items]
Total	0.0	(0.3)	0.0	(0.9)
Eliminations | Water Direct/Water Exchange
Segment Reporting Information [Line Items]
Total	0.0	0.0	0.0	0.0
Eliminations | Water Refill/Water Filtration
Segment Reporting Information [Line Items]
Total	0.0	0.0	0.0	0.0
Eliminations | Other Water
Segment Reporting Information [Line Items]
Total	0.0	0.0	0.0	0.0
Eliminations | Water Dispensers
Segment Reporting Information [Line Items]
Total	0.0	0.0	0.0	0.0
Eliminations | Other
Segment Reporting Information [Line Items]
Total	0.0	(0.3)	0.0	(0.9)
Eliminations | All Other Products to Europe
Segment Reporting Information [Line Items]
Total		0.3		0.9
North America | Operating Segments
Segment Reporting Information [Line Items]
Total	436.7	396.7	833.8	762.2
North America | Operating Segments | Water Direct/Water Exchange
Segment Reporting Information [Line Items]
Total	321.1	264.9	599.4	503.7
North America | Operating Segments | Water Refill/Water Filtration
Segment Reporting Information [Line Items]
Total	47.3	45.1	89.5	90.2
North America | Operating Segments | Other Water
Segment Reporting Information [Line Items]
Total	22.2	42.2	56.2	83.1
North America | Operating Segments | Water Dispensers
Segment Reporting Information [Line Items]
Total	18.5	17.6	32.7	32.6
North America | Operating Segments | Other
Segment Reporting Information [Line Items]
Total	27.6	26.9	56.0	52.6
Europe | Operating Segments
Segment Reporting Information [Line Items]
Total	69.9	64.3	134.2	119.9
Europe | Operating Segments | Water Direct/Water Exchange
Segment Reporting Information [Line Items]
Total	53.7	47.7	101.9	88.0
Europe | Operating Segments | Water Refill/Water Filtration
Segment Reporting Information [Line Items]
Total	8.2	7.8	16.4	15.7
Europe | Operating Segments | Other Water
Segment Reporting Information [Line Items]
Total	0.4	0.4	0.8	0.6
Europe | Operating Segments | Water Dispensers
Segment Reporting Information [Line Items]
Total	0.0	0.0	0.0	0.0
Europe | Operating Segments | Other
Segment Reporting Information [Line Items]
Total	$ 7.6	$ 8.4	$ 15.1	$ 15.6