Segment Reporting - Information by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Dec. 28, 2019
Segment Reporting Information [Line Items]
Revenue, net	$ 474.2	$ 427.7
Depreciation and amortization	45.0	39.7
Operating income (loss)	(4.0)	0.7
Additions to property, plant and equipment	34.9	22.0
Total assets	3,719.1	2,864.4	$ 2,864.4
Segment assets	3,719.1	2,864.4	2,864.4
Assets of discontinued operations			526.5
Total assets	3,719.1		$ 3,390.9
Water Solutions
Segment Reporting Information [Line Items]
Revenue, net	474.2	420.5
Depreciation and amortization	44.9	39.6
Operating income (loss)	21.5	14.0
Additions to property, plant and equipment	34.9	21.9
Total assets	3,663.4	2,816.1
Segment assets	3,663.4	2,816.1
All Other
Segment Reporting Information [Line Items]
Revenue, net	0.0	7.2
Depreciation and amortization	0.1	0.1
Operating income (loss)	(25.5)	(13.3)
Additions to property, plant and equipment	0.0	0.1
Total assets	55.7	48.3
Segment assets	$ 55.7	$ 48.3