Cover Page - shares	9 Months Ended
	Sep. 30, 2023	Nov. 07, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-36483
Entity Registrant Name	Viridian Therapeutics, Inc./DE
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-1187261
Entity Address, Address Line One	221 Crescent Street, Suite 401,
Entity Address, City or Town	Waltham
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02453
City Area Code	617
Local Phone Number	272-4600
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	VRDN
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 (in share)		52,586,039
Entity Central Index Key	0001590750
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31