Cover Page - USD ($) $ in Billions	12 Months Ended
	Jan. 31, 2020	Feb. 28, 2020	Jul. 31, 2019
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jan. 31, 2020
Document Transition Report	false
Entity File Number	001-38069
Entity Registrant Name	CLOUDERA, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-2922329
Entity Address, Address Line One	395 Page Mill Road
Entity Address, City or Town	Palo Alto
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94306
City Area Code	650
Local Phone Number	362-0488
Title of 12(b) Security	Common Stock, $0.00005 par value per share
Trading Symbol	CLDR
Security Exchange Name	NYSE
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
Entity Shell Company	false
Entity Public Float			$ 1.4
Entity Common Stock, Shares Outstanding (In shares)		295,190,516
Documents Incorporated by Reference	Information required in response to Part II and Part III of Form 10-K is hereby incorporated by reference to portions of the Registrant’s Proxy Statement for the Annual Meeting of Stockholders to be held in 2020. The Proxy Statement will be filed by the Registrant with the Securities and Exchange Commission no later than 120 days after the end of the Registrant’s fiscal year ended January 31, 2020.
Entity Central Index Key	0001535379
Current Fiscal Year End Date	--01-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false