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Property and Equipment, Net (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Jan. 31, 2024
Property, Plant and Equipment [Line Items]      
Property and equipment, net $ 255,736   $ 245,173
Depreciation expense 19,800 $ 17,800  
Capitalized computer software, amortization 11,700 6,800  
Capitalized software costs 24,700 21,700  
Capitalized stock-based compensation 8,600 $ 6,800  
Property and equipment, excluding work in progress      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 413,036   387,251
Less: Accumulated depreciation (261,585)   (244,270)
Property and equipment, net 151,451   142,981
Computer and network equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 141,464   142,241
Software, including capitalized software development costs      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 195,390   168,584
Furniture and office equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 18,135   18,196
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 58,047   58,230
Work in progress      
Property, Plant and Equipment [Line Items]      
Property and equipment, net $ 104,285   $ 102,192