XML 78 R53.htm IDEA: XBRL DOCUMENT v3.25.1
Significant Accounting Policies - Narrative (Details) - USD ($)
 12 Months Ended
Jan. 26, 2025
Jan. 28, 2024
Jan. 29, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Aggregate net investments under cost method of accounting $ 33,400,000 $ 36,500,000  
Total equity method investments 5,700,000 6,400,000  
Investment impairments and credit loss reserves, net (1,109,000) (3,929,000) $ (1,156,000)
Impairment of goodwill 7,490,000 755,621,000 0
Intangible impairment $ 0 131,385,000 0
Percent of realizable undiscounted cash flows used to determine useful life of acquired finite-lived intangible assets, minimum 90.00%    
Deferred revenue $ 15,870,000 19,092,000  
Deferred revenue, noncurrent 10,800,000 8,200,000  
Restructuring 4,944,000 24,634,000 11,975,000
Advertising costs 900,000 1,500,000 1,500,000
Recoveries from nonrecurring engineering services 8,800,000 5,400,000 10,100,000
Amortization of acquired technology $ 9,106,000 $ 33,716,000 $ 5,661,000