CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenue, net	$ 332,381	$ 143,732	$ 12,032
Cost of goods sold	(196,409)	(82,818)	(8,744)
Gross profit	135,972	60,914	3,288
Operating expenses
General and administrative expenses	116,665	53,067	29,409
Settlement expense	36,511	0	0
Total operating expenses	153,176	53,067	29,409
Operating (loss) profit	(17,204)	7,847	(26,121)
Other (expense) income
Interest expense	(63,989)	(12,993)	(6,477)
Other, net	256	7	23
Total other expense	(63,733)	(12,986)	(6,454)
Loss before income taxes	(80,937)	(5,139)	(32,575)
Income tax expense	(41,720)	(18,702)	(667)
Net loss	(122,657)	(23,841)	(33,242)
Less: net income attributable to non-controlling interests	0	1,598	(1,347)
Net loss attributable to Ascend Wellness Holdings, Inc.	$ (122,657)	$ (25,439)	$ (31,895)
Net loss per share attributable to Class A and Class B stockholders of Ascend Wellness Holdings, Inc. — basic (in dollars per share)	$ (0.82)	$ (0.27)	$ (0.37)
Net loss per share attributable to Class A and Class B stockholders of Ascend Wellness Holdings, Inc. — diluted (in dollars per share)	$ (0.82)	$ (0.27)	$ (0.37)
Weighted-average common shares outstanding — basic (in shares)	149,434	95,165	87,289
Weighted-average common shares outstanding —diluted (in shares)	149,434	95,165