Goodwill and Intangible Assets - Narrative (Details) - USD ($)		3 Months Ended			12 Months Ended
	Jan. 12, 2023	Jan. 28, 2024	Oct. 29, 2023	Jul. 30, 2023	Jan. 28, 2024	Jan. 29, 2023	Jan. 30, 2022
Goodwill [Line Items]
Goodwill		$ 541,227,000			$ 541,227,000	$ 1,281,703,000
Measurement period adjustments					23,925,000
Reclassification					0
Impairment of goodwill		473,800,000	$ 2,300,000	$ 279,600,000	755,621,000	0	$ 0
Estimated useful life	5 years 3 months 18 days
Intangible impairment					131,385,000	0	$ 0
Net Carrying Amount		33,651,000			33,651,000	215,102,000
Developed technology
Goodwill [Line Items]
Estimated useful life	4 years 4 months 24 days
Intangible impairment		91,800,000			91,792,000	0
Net Carrying Amount		28,063,000			28,063,000	153,924,000
Customer relationships
Goodwill [Line Items]
Estimated useful life	7 years 10 months 24 days
Intangible impairment		34,800,000			34,777,000	0
Net Carrying Amount		4,104,000			4,104,000	52,310,000
Trade name
Goodwill [Line Items]
Estimated useful life	6 years 2 months 12 days
Net Carrying Amount		1,484,000			1,484,000
Trade name
Goodwill [Line Items]
Intangible impairment		4,800,000			4,816,000	0
Net Carrying Amount		1,484,000			1,484,000	8,868,000
IoT System | Operating Segments
Goodwill [Line Items]
Goodwill		106,565,000			106,565,000	61,582,000
Measurement period adjustments					0
Reclassification					(593,945,000)
Impairment of goodwill					546,609,000
Signal Integrity Products Group | Operating Segments
Goodwill [Line Items]
Goodwill		267,205,000			267,205,000	274,085,000
Measurement period adjustments					0
Reclassification					6,880,000
Impairment of goodwill					0
IoT Connected Services | Operating Segments
Goodwill [Line Items]
Goodwill		84,356,000			84,356,000	$ 0
Measurement period adjustments					0
Reclassification					(299,795,000)
Impairment of goodwill		138,400,000	1,600,000	69,000,000	209,012,000
IoT System, Modules
Goodwill [Line Items]
Impairment of goodwill		135,100,000	200,000	109,900,000
IoT System, Routers
Goodwill [Line Items]
Impairment of goodwill		200,300,000	$ 500,000	$ 100,700,000
Sierra Wireless
Goodwill [Line Items]
Goodwill	$ 931,397,000	$ 955,322,000			955,322,000
Measurement period adjustments					23,925,000
Discontinued Operations, Disposed of by Sale | Micross Components, Inc.
Goodwill [Line Items]
Reduction to goodwill					$ 800,000