Restructuring and Related Charges - Restructuring Plan Activity (Details) - USD ($) $ in Millions	3 Months Ended		15 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Dec. 30, 2023
Restructuring Reserve [Roll Forward]
Restructuring and related benefits	$ (0.8)	$ 0.0
Fiscal 2023 Plan
Restructuring Reserve [Roll Forward]
Beginning of period balance	5.8
Restructuring and related benefits	(0.8)
Cash Settlements	(3.5)
End of period balance	1.5
Fiscal 2023 Plan Phase I
Restructuring Reserve [Roll Forward]
Beginning of period balance	4.1
Restructuring and related benefits	(0.6)
Cash Settlements	(3.0)
End of period balance	0.5
Fiscal 2023 Plan Phase II
Restructuring Reserve [Roll Forward]
Beginning of period balance	1.7
Restructuring and related benefits	(0.2)
Cash Settlements	(0.5)
End of period balance	1.0
Network and Service Enablement | Fiscal 2023 Plan Phase I
Restructuring Reserve [Roll Forward]
Beginning of period balance	3.5
Restructuring and related benefits	(0.6)
Cash Settlements	(2.4)
End of period balance	0.5
Network and Service Enablement | Fiscal 2023 Plan Phase II
Restructuring Reserve [Roll Forward]
Beginning of period balance	1.7
Restructuring and related benefits	(0.2)
Cash Settlements	(0.5)
End of period balance	1.0
Optical Security and Performance Products | Fiscal 2023 Plan Phase I
Restructuring Reserve [Roll Forward]
Beginning of period balance	0.6
Restructuring and related benefits	0.0
Cash Settlements	(0.6)
End of period balance	$ 0.0
Forecast
Restructuring and Related Charges
Workforce reduction percentage			5.00%