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Segment Information - Net Sales Activity by Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 26, 2025
Jan. 28, 2024
Jan. 29, 2023
Revenue from External Customer [Line Items]      
Total net sales $ 909,287 $ 868,758 $ 756,533
Segment cost of sales 439,698 439,410 267,774
Segment gross profit 469,589 429,348 488,759
Unallocated costs, including share-based compensation, amortization of acquired technology and acquired technology impairments (13,061) (133,098) (10,201)
Gross profit 456,528 296,250 478,558
Signal Integrity      
Revenue from External Customer [Line Items]      
Total net sales 261,747 177,033 298,290
Segment cost of sales 99,091 75,788 89,780
Segment gross profit 162,656 101,245 208,510
Analog Mixed Signal and Wireless      
Revenue from External Customer [Line Items]      
Total net sales 322,899 260,264 443,239
Segment cost of sales 143,527 113,666 168,724
Segment gross profit 179,372 146,598 274,515
IoT Systems And Connectivity      
Revenue from External Customer [Line Items]      
Total net sales 324,641 431,461 15,004
Segment cost of sales 197,080 249,956 9,270
Segment gross profit $ 127,561 $ 181,505 $ 5,734