Cover - shares	9 Months Ended
	Sep. 30, 2025	Nov. 06, 2025
Entity Listings [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2025
Document Transition Report	false
Entity File Number	333-254800
Entity Registrant Name	ASCEND WELLNESS HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-0602006
Entity Address, Address Line One	44 Whippany Rd.
Entity Address, Address Line Two	Suite 101
Entity Address, City or Town	Morristown
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07960
City Area Code	646
Local Phone Number	661-7600
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001756390
Current Fiscal Year End Date	--12-31
Class A common stock
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		202,269,004
Class B common stock
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		65,000