v3.25.4
Description of Business and Significant Accounting Policies - Narrative (Details)
 1 Months Ended 12 Months Ended
Sep. 26, 2025
reporting_unit
Sep. 12, 2025
reporting_unit
Feb. 28, 2026
Dec. 31, 2022
Jul. 31, 2019
USD ($)
Jan. 31, 2026
USD ($)
reporting_unit
user
Jan. 31, 2025
USD ($)
user
Jan. 31, 2024
USD ($)
Dec. 31, 2021
USD ($)
Concentration Risk [Line Items]                  
Commission amortization period (in years)           4 years      
Cash equivalents           $ 3,100,000,000 $ 4,000,000,000.0    
Financing receivables term           5 years      
Strategic investments, term           10 years      
Term of extension           3 years      
Number of reporting units | reporting_unit 1 1       1      
Goodwill impairment loss           $ 0 0 $ 0  
Impairment losses of property and equipment           $ 0 0 0  
Professional service contract amortization period (in months)           5 months      
Advertising expense           $ 126,500,000 118,100,000 79,900,000  
Vesting period (in years)           4 years      
Vested salary and incentive compensation percentage       100.00%          
Marketable securities           $ 12,700,000 5,500,000    
Deferred compensation liability           12,700,000 5,500,000    
Deferred financing costs, net             2,900,000    
Amortization of debt issuance costs           4,000,000.0 2,200,000 $ 1,600,000  
Subsequent Event                  
Concentration Risk [Line Items]                  
Commission amortization period (in years)     5 years            
Senior Notes                  
Concentration Risk [Line Items]                  
Unamortized issuance costs           $ 1,000,000.0 $ 1,300,000    
Tranche One                  
Concentration Risk [Line Items]                  
Requisite service period (in months)           6 months      
Tranche Two                  
Concentration Risk [Line Items]                  
Requisite service period (in months)           12 months      
Tranche Three                  
Concentration Risk [Line Items]                  
Requisite service period (in months)           18 months      
Tranche Four                  
Concentration Risk [Line Items]                  
Requisite service period (in months)           24 months      
Restricted Stock Units (RSUs)                  
Concentration Risk [Line Items]                  
Vesting period (in years)           4 years      
PSUs                  
Concentration Risk [Line Items]                  
Vesting period (in years)           4 years      
Employee Stock Purchase Plan                  
Concentration Risk [Line Items]                  
Vesting period (in years)           2 years      
Maximum                  
Concentration Risk [Line Items]                  
Useful life (in years)           20 years      
Subscription fees payable term (in days)           60 days      
Subscription term (in years)           3 years      
Minimum                  
Concentration Risk [Line Items]                  
Useful life (in years)           2 years      
Subscription fees payable term (in days)           30 days      
Subscription term (in years)           1 year      
Accel | Crowdstrike Falcon Fund Llc                  
Concentration Risk [Line Items]                  
Sharing percentage         50.00%        
Accel | Crowdstrike Falcon Fund Llc | Maximum                  
Concentration Risk [Line Items]                  
Amount agreed to commit         $ 10,000,000.0       $ 50,000,000.0
Financing Receivable | Customer Concentration Risk | Two End Users                  
Concentration Risk [Line Items]                  
Number of end users | user           2 2    
Concentration risk (as a percent)           27.00% 78.00%