Cover - shares	3 Months Ended
	Mar. 31, 2026	May 08, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2026
Document Transition Report	false
Entity File Number	001-39139
Entity Registrant Name	CURIOSITYSTREAM INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-1797523
Entity Address, Address Line One	8484 Georgia Ave
Entity Address, Address Line Two	Suite 700
Entity Address, City or Town	Silver Spring
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	20910
City Area Code	301
Local Phone Number	755-2050
Title of 12(b) Security	Common Stock, par value $0.0001
Trading Symbol	CURI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		59,287,600
Entity Central Index Key	0001776909
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1
Amendment Flag	false