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Restructuring and Related Charges - Restructuring Plan Activity (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended		11 Months Ended
	Apr. 01, 2023	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2023
Restructuring Reserve [Roll Forward]
Beginning of period balance	$ 0.0
Restructuring and related charges (benefits)	10.2	$ 10.2	$ 0.0
Cash settlements	(2.7)
Non-cash settlements and other adjustments	(0.1)
End of period balance	7.4	7.4
Network and Service Enablement
Restructuring Reserve [Roll Forward]
Beginning of period balance	0.0
Restructuring and related charges (benefits)	9.0
Cash settlements	(2.7)
Non-cash settlements and other adjustments	(0.1)
End of period balance	6.2	6.2
Optical Security and Performance Products
Restructuring Reserve [Roll Forward]
Beginning of period balance	0.0
Restructuring and related charges (benefits)	1.2
Cash settlements	0.0
Non-cash settlements and other adjustments	0.0
End of period balance	$ 1.2	$ 1.2
Forecast
Restructuring and Related Charges
Workforce reduction percentage				5.00%