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Goodwill and Intangible Assets - Narrative (Details)
 3 Months Ended 12 Months Ended
Jan. 25, 2026
USD ($)
Jul. 27, 2025
USD ($)
Jan. 26, 2025
USD ($)
Jan. 28, 2024
USD ($)
Jan. 25, 2026
USD ($)
reporting_unit
segment
Jan. 26, 2025
USD ($)
Jan. 28, 2024
USD ($)
Goodwill [Line Items]              
Addition from acquisition         $ 7,967,000    
Number of operating segments | segment         3    
Number of reporting units | reporting_unit         6    
Goodwill $ 457,925,000   $ 533,091,000   $ 457,925,000 $ 533,091,000  
Impairment of goodwill         84,785,000 7,490,000 $ 755,621,000
Intangible impairment         1,777,000 0 131,385,000
Net Carrying Amount 29,676,000   24,867,000   29,676,000 24,867,000  
Developed technology              
Goodwill [Line Items]              
Intangible impairment       $ 91,800,000      
Net Carrying Amount 21,003,000   18,922,000 28,100,000 21,003,000 18,922,000 28,100,000
Customer relationships              
Goodwill [Line Items]              
Intangible impairment       34,800,000      
Net Carrying Amount 3,206,000   3,610,000 4,100,000 3,206,000 3,610,000 4,100,000
Trade name              
Goodwill [Line Items]              
Net Carrying Amount 927,000       927,000    
Trade name              
Goodwill [Line Items]              
Intangible impairment       4,800,000      
Net Carrying Amount 927,000   1,059,000 $ 1,500,000 927,000 1,059,000 1,500,000
Analog Mixed Signal and Wireless | Operating Segments              
Goodwill [Line Items]              
Addition from acquisition         7,967,000    
Goodwill 91,068,000   83,101,000   91,068,000 83,101,000  
Impairment of goodwill         0    
IoT Systems and Connectivity | Operating Segments              
Goodwill [Line Items]              
Addition from acquisition         0    
Goodwill 99,652,000   182,785,000   99,652,000 182,785,000  
Impairment of goodwill         84,785,000    
Signal Integrity | Operating Segments              
Goodwill [Line Items]              
Addition from acquisition         0    
Goodwill 267,205,000   267,205,000   267,205,000 $ 267,205,000  
Impairment of goodwill         $ 0    
IoT Connected Services              
Goodwill [Line Items]              
Impairment of goodwill $ 42,800,000 $ 42,000,000.0         209,000,000.0
IoT System, Modules              
Goodwill [Line Items]              
Impairment of goodwill     $ 7,500,000       245,200,000
IoT System, Routers              
Goodwill [Line Items]              
Impairment of goodwill             $ 301,400,000