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Significant Accounting Policies - Narrative (Details) - USD ($)
 12 Months Ended
Jan. 25, 2026
Jan. 26, 2025
Jan. 28, 2024
Accounting Policies [Abstract]      
Aggregate net investments under cost method of accounting $ 31,700,000 $ 33,400,000  
Total equity method investments 5,300,000 5,700,000  
Investment impairments and credit loss reserves, net 10,387,000 1,109,000 $ 3,929,000
Impairment of goodwill 84,785,000 7,490,000 755,621,000
Intangible impairment $ 1,777,000 0 131,385,000
Percent of realizable undiscounted cash flows used to determine useful life of acquired finite-lived intangible assets, minimum 90.00%    
Deferred revenue $ 14,197,000 15,870,000  
Deferred revenue, noncurrent 11,700,000 10,800,000  
Restructuring 4,186,000 4,944,000 24,634,000
Advertising costs 1,400,000 900,000 1,500,000
Recoveries from nonrecurring engineering services 4,600,000 8,800,000 5,400,000
Amortization of acquired technology $ 9,193,000 $ 9,106,000 $ 33,716,000