Business Combinations - Additional Information (Detail) - USD ($) $ in Thousands				3 Months Ended								12 Months Ended
	Jul. 11, 2019	Feb. 28, 2019	Feb. 15, 2019	Dec. 30, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill								$ 163,251				$ 166,915	$ 163,251
Net loss				$ (2,947)	$ (2,316)	$ (81,687)	$ (184,123)	$ (219,148)	$ (36,351)	$ (36,301)	$ (29,369)	$ (271,073)	(321,169)	$ (67,723)
Manitoba Harvest [Member]
Business Acquisition [Line Items]
Working capital adjustment		$ 280
Goodwill		126,881
Increase (decrease) in goodwill		(1,112)
Gross contractual amount		6,340
Business combination, acquired receivables, estimated uncollectible		133
Revenues													58,029
Net loss													(14,441)
Business combination, acquisition related expenses													1,328
Manitoba Harvest [Member] | Hemp Reportable Segment [Member]
Business Acquisition [Line Items]
Goodwill		$ 126,881
Natura Naturals Holdings Inc [Member]
Business Acquisition [Line Items]
Goodwill			$ 29,314
Increase (decrease) in goodwill			$ 2,340
Revenues													14,544
Net loss													(125)
Business combination, acquisition related expenses													$ 824
Acquired percentage of issued and outstanding shares			97.00%
Natura Naturals Holdings Inc [Member] | Cannabis Reportable Segment [Member]
Business Acquisition [Line Items]
Goodwill			$ 29,314
Smith & Sinclair Ltd. [Member]
Business Acquisition [Line Items]
Goodwill	$ 4,932
Smith & Sinclair Ltd. [Member] | Hemp Reportable Segment [Member]
Business Acquisition [Line Items]
Goodwill	4,932
Revenues	1,633
Net loss	$ (2,774)