v3.26.1
Balance Sheet Components - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Jan. 31, 2026
Intangible Asset, Finite-Lived [Line Items]          
Prepaid expense $ 257,000,000.0   $ 257,000,000.0   $ 250,900,000
Other current assets 256,700,000   256,700,000   128,800,000
Depreciation and amortization 82,100,000 $ 60,400,000 157,600,000 $ 116,800,000  
Impairment of property and equipment 0 0 0 0  
Amortization of internal-use software and website development costs 25,700,000 19,600,000 50,100,000 37,100,000  
Property and equipment, net 1,174,851,000   1,174,851,000   976,331,000
Amortization of intangible assets $ 13,300,000 7,600,000 $ 25,690,000 15,261,000  
Minimum          
Intangible Asset, Finite-Lived [Line Items]          
Useful lives (in years) 2 years   2 years    
Maximum          
Intangible Asset, Finite-Lived [Line Items]          
Useful lives (in years) 20 years   20 years    
Data center and other computer equipment          
Intangible Asset, Finite-Lived [Line Items]          
Equipment purchased but not yet placed into service     $ 273,700,000    
Capitalized internal-use software and website development costs          
Intangible Asset, Finite-Lived [Line Items]          
Equipment purchased but not yet placed into service $ 45,400,000 $ 31,000,000.0 81,500,000 $ 60,600,000  
Property and equipment, net $ 216,100,000   $ 216,100,000   $ 184,700,000