v3.20.4
Cover - USD ($)
$ in Millions
 12 Months Ended
Jan. 31, 2021
Feb. 28, 2021
Jul. 31, 2020
Class of Stock [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jan. 31, 2021    
Current Fiscal Year End Date --01-31    
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    
City Area Code 888    
Local Phone Number 512-8906    
Title of 12(b) Security Class A common stock, par value $0.0005 per share    
Trading Symbol CRWD    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 20,800
Documents Incorporated by Reference Portions of the registrant’s definitive Proxy Statement relating to its 2021 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K where indicated. Such Proxy Statement will be filed with the United States Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates.    
Entity Central Index Key 0001535527    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Class A Common Stock      
Class of Stock [Line Items]      
Entity Common Stock, Shares Outstanding   195,247,309  
Class B Common Stock      
Class of Stock [Line Items]      
Entity Common Stock, Shares Outstanding   28,628,920