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Cover - USD ($) $ in Billions	12 Months Ended
Cover - USD ($) $ in Billions	Jan. 31, 2025	Feb. 28, 2025	Jul. 31, 2024
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--01-31
Document Period End Date	Jan. 31, 2025
Document Transition Report	false
Entity File Number	001-42028
Registrant Name	RUBRIK, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4560494
Entity Address, Address Line One	3495 Deer Creek Road
Entity Address, City or Town	Palo Alto
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94304
City Area Code	(844)
Local Phone Number	478-2745
Title of 12(b) Security	Class A Common Stock, $0.000025 par value
Trading Symbol	RBRK
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction Flag	false
Entity Shell Company	false
Entity Public Float			$ 2.3
Documents Incorporated by Reference	Portions of the Registrant’s definitive Proxy Statement related to the 2025 Annual Meeting of Stockholders are incorporated herein by reference in Part III of this Annual Report on Form 10-K to be filed with the 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	0001943896
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		103,167,994
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		86,610,633