| Document and Entity Information Document | Mar. 19, 2020 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Mar. 19, 2020 |
| Entity Registrant Name | CrowdStrike Holdings, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-38933 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A common stock, $0.0005 par value |
| Trading Symbol | CRWD |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001535527 |
| Amendment Flag | false |
