Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite and Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible asset, Cost	$ 152,923	$ 161,122
Definite-lived intangible asset, Accumulated Amortization	24,035	23,079
Definite-lived intangible asset, Impairment		8,188
Definite-lived intangible asset, Net	128,889	129,855
Indefinite-lived intangible asset, Cost	57,333	83,594
Indefinite-lived intangible asset, Impairment		27,004
Indefinite-lived intangible asset, Net	57,333	56,590
Total intangible asset, Cost	210,256	244,716
Total intangible asset, Impairment		35,192
Total intangible asset, Net	$ 186,222	186,445
Patents [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible asset, Cost		669
Definite-lived intangible asset, Accumulated Amortization		131
Definite-lived intangible asset, Impairment		538
Customer Relationships [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	16 years
Definite-lived intangible asset, Cost	$ 140,709	138,885
Definite-lived intangible asset, Accumulated Amortization	18,455	16,030
Definite-lived intangible asset, Net	$ 122,255	122,855
Developed Technology [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	10 years
Definite-lived intangible asset, Cost	$ 7,322	7,227
Definite-lived intangible asset, Accumulated Amortization	1,525	1,325
Definite-lived intangible asset, Net	$ 5,797	5,902
Websites [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	3 years
Definite-lived intangible asset, Cost	$ 4,710	5,332
Definite-lived intangible asset, Accumulated Amortization	3,985	4,348
Definite-lived intangible asset, Net	$ 725	984
Trademarks and Licenses [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	5 years
Definite-lived intangible asset, Cost	$ 182	9,009
Definite-lived intangible asset, Accumulated Amortization	70	1,245
Definite-lived intangible asset, Impairment		7,650
Definite-lived intangible asset, Net	$ 112	114
Cultivation License [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	Indefinite
Indefinite-lived intangible asset, Cost		10,239
Indefinite-lived intangible asset, Impairment		10,239
Trademarks [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	Indefinite
Indefinite-lived intangible asset, Cost	$ 57,333	56,590
Indefinite-lived intangible asset, Net	$ 57,333	56,590
Rights under ABG Profit Participation Arrangement [Member]
Finite and Indefinite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	Indefinite
Indefinite-lived intangible asset, Cost		16,765
Indefinite-lived intangible asset, Impairment		$ 16,765