Reportable Segments - Summary of Segment Data (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022	Dec. 30, 2022
Revenues:
Total segment revenues	$ 421.5	$ 608.7	$ 854.8	$ 1,172.9
Gross profit:
Total segment gross profit	68.1	118.4	141.1	232.2
Operating profit:
Total segment operating profit	12.6	(5.5)	25.0	40.3
ASSETS
Total segment assets	1,843.7		1,843.7		$ 1,960.9
Products [Member]
Revenues:
Total segment revenues	362.5	532.0	731.1	1,018.9
Gross profit:
Total segment gross profit	51.4	90.9	104.9	178.3
Operating profit:
Total segment operating profit	10.8	(14.4)	19.5	23.3
ASSETS
Total segment assets	1,550.9		1,550.9		1,650.2
Service [Member]
Revenues:
Total segment revenues	59.0	76.7	123.7	154.0
Gross profit:
Total segment gross profit	16.7	27.5	36.2	53.9
Operating profit:
Total segment operating profit	1.8	$ 8.9	5.5	$ 17.0
ASSETS
Total segment assets	$ 292.8		$ 292.8		$ 310.7