Restructuring - Restructuring Reserve Rollforward (Details) - USD ($)	12 Months Ended
	Jan. 29, 2023	Jan. 30, 2022	Jan. 31, 2021
Restructuring Reserve [Roll Forward]
Beginning balance	$ 0	$ 0	$ 238,000
Charges (recoveries)	11,975,000	0	(238,000)
Assumed restructuring liability in Sierra Wireless Acquisition	586,000
Cash payments	(8,522,000)
Ending balance	4,039,000	0	0
One-time employee termination benefits
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	114,000
Charges (recoveries)	11,320,000		(114,000)
Assumed restructuring liability in Sierra Wireless Acquisition	586,000
Cash payments	(7,879,000)
Ending balance	4,027,000	0	0
Contract commitments
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	124,000
Charges (recoveries)	655,000		(124,000)
Assumed restructuring liability in Sierra Wireless Acquisition	0
Cash payments	(643,000)
Ending balance	$ 12,000	$ 0	$ 0