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Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($)
$ in Thousands
Jul. 31, 2021
Jan. 31, 2021
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,985,586 $ 1,721,586
Less accumulated depreciation and amortization (849,993) (749,183)
Property and equipment, net 1,135,593 972,403
Land and land improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 80,553 37,065
Buildings    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 676,724 494,599
Computers, equipment, and software    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1,025,628 931,456
Furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 55,048 54,193
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 147,633 $ 204,273