Segment Information - Net Sales Activity by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 29, 2023	Jan. 30, 2022	Jan. 31, 2021
Revenue from External Customer [Line Items]
Net sales	$ 756,533	$ 740,858	$ 595,117
Gross profit	$ 478,558	$ 461,139	$ 355,873
Net sales revenue | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
Signal Integrity Products Group
Revenue from External Customer [Line Items]
Net sales	$ 304,124	$ 291,114	$ 255,640
Gross profit	$ 211,791	$ 200,251	$ 172,069
Signal Integrity Products Group | Net sales revenue | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage	40.00%	40.00%	43.00%
Advanced Protection and Sensing Products Group
Revenue from External Customer [Line Items]
Net sales	$ 236,890	$ 306,932	$ 243,085
Gross profit	$ 125,584	$ 163,474	$ 127,468
Advanced Protection and Sensing Products Group | Net sales revenue | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage	31.00%	41.00%	41.00%
IoT System Products Group
Revenue from External Customer [Line Items]
Net sales	$ 210,326	$ 142,812	$ 96,392
Gross profit	$ 148,895	$ 106,474	$ 65,762
IoT System Products Group | Net sales revenue | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage	28.00%	19.00%	16.00%
IoT Connected Services Group
Revenue from External Customer [Line Items]
Net sales	$ 5,193	$ 0	$ 0
Gross profit	$ 2,489	$ 0	$ 0
IoT Connected Services Group | Net sales revenue | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage	1.00%	0.00%	0.00%
Unallocated costs, including share-based compensation and amortization of acquired technology
Revenue from External Customer [Line Items]
Gross profit	$ (10,201)	$ (9,060)	$ (9,426)