Document and Entity Information - shares
9 Months Ended
Oct. 31, 2019
Nov. 29, 2019
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Oct. 31, 2019  
Document Transition Report false  
Entity File Number 001-38933  
Entity Registrant Name CROWDSTRIKE HOLDINGS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 45-3788918  
Entity Address, Address Line One 150 Mathilda Place  
Entity Address, Address Line Two Suite 300  
Entity Address, City or Town Sunnyvale  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94086  
Title of 12(b) Security Class A common stock, par value $0.0005 per share  
Trading Symbol CRWD  
Security Exchange Name NASDAQ  
City Area Code 888  
Local Phone Number 512-8906  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Central Index Key 0001535527  
Current Fiscal Year End Date --01-31  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Class A common stock    
Entity Common Stock, Shares Outstanding   40,871,355
Class B common stock    
Entity Common Stock, Shares Outstanding   164,673,516