Intangible Assets And Goodwill - Summary Of Goodwill And Intangible Assets Disclosure (Detail) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2020	Dec. 31, 2019
Goodwill [Line Items]
Balance at beginning	$ 375,084,991	$ 39,204,360
Adjustments to Purchase Price Allocations	(2,003,275)	4,672,523
Balance at end	373,081,716	375,084,991
Advanced Grow Labs LLC [Member]
Goodwill [Line Items]
Acquisitions		61,328,599
Integral Associates LLC [Member]
Goodwill [Line Items]
Acquisitions		115,979,323
Other Acquisitions [Member]
Goodwill [Line Items]
Acquisitions		153,900,188
Retail Segment [Member]
Goodwill [Line Items]
Balance at beginning	119,873,759	15,286,360
Adjustments to Purchase Price Allocations	1,191,425	8,238,808
Balance at end	121,065,184	119,873,759
Retail Segment [Member] \| Advanced Grow Labs LLC [Member]
Goodwill [Line Items]
Acquisitions		16,756,250
Retail Segment [Member] \| Integral Associates LLC [Member]
Goodwill [Line Items]
Acquisitions		46,655,753
Retail Segment [Member] \| Other Acquisitions [Member]
Goodwill [Line Items]
Acquisitions		32,936,590
Consumer Packaged Goods Segment [Member]
Goodwill [Line Items]
Balance at beginning	255,211,232	23,918,000
Adjustments to Purchase Price Allocations	(3,194,700)	(3,566,285)
Balance at end	$ 252,016,532	255,211,232
Consumer Packaged Goods Segment [Member] \| Advanced Grow Labs LLC [Member]
Goodwill [Line Items]
Acquisitions		44,572,349
Consumer Packaged Goods Segment [Member] \| Integral Associates LLC [Member]
Goodwill [Line Items]
Acquisitions		69,323,570
Consumer Packaged Goods Segment [Member] \| Other Acquisitions [Member]
Goodwill [Line Items]
Acquisitions		$ 120,963,598

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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