Information on Business Segments - Net Sales and Operating Income by Segment (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 30, 2024	Apr. 01, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 1,109.6	$ 1,040.0
Operating income	$ 155.4	131.8
Operating Income, Percentage Change vs. Prior Year	17.90%
Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 1,109.6	1,040.0
Net Sales, Percentage Change vs. Prior Year	6.70%
Corporate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	$ (39.3)	(30.7)
Operating Income, Percentage Change vs. Prior Year	(28.00%)
Water [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 625.3	594.2
Operating income	$ 141.3	128.4
Net Sales, Percentage Change vs. Prior Year	5.20%
Operating Income, Percentage Change vs. Prior Year	10.00%
Outdoors \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 315.0	289.9
Operating income	$ 34.3	13.0
Net Sales, Percentage Change vs. Prior Year	8.70%
Operating Income, Percentage Change vs. Prior Year	163.80%
Security \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 169.3	155.9
Operating income	$ 19.1	$ 21.1
Net Sales, Percentage Change vs. Prior Year	8.60%
Operating Income, Percentage Change vs. Prior Year	(9.50%)