Stockholders' Equity - Additional Information (Detail)				1 Months Ended					12 Months Ended
	Dec. 02, 2019 shares	Sep. 10, 2019 USD ($)	Jul. 11, 2019 USD ($)	Aug. 31, 2019 $ / shares shares	Jul. 31, 2019 $ / shares shares	Mar. 31, 2019 $ / shares shares	Feb. 28, 2019 $ / shares shares	Jan. 31, 2019 $ / shares shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($)
Class Of Stock [Line Items]
Shares issued for common stock at-the-market, net of issuance costs | $										$ 160,792,000
S & S Acquisition [Member]
Class Of Stock [Line Items]
Cash consideration | $			$ 2,420,000
Downstream Merger [Member] | Agreement and Plan of Merger and Reorganization with Privateer Holdings, Inc. (“Privateer”)
Class Of Stock [Line Items]
Conversion rate									0.0107290
Cash consideration | $									$ 0
Class 2 Common Stock [Member] | Cowen And Company LLC [Member]
Class Of Stock [Line Items]
Stock issued during period, shares, new issues									5,396,501
Shares issued for common stock at-the-market, net of issuance costs | $		$ 400,000,000
Proceeds from issuance of common stock, gross | $									$ 113,543,000
Proceeds from issuance of common stock, net | $									$ 111,073,000
Class 2 Common Stock [Member] | Natura Acquisition [Member]
Class Of Stock [Line Items]
Stock issued during period, shares, new issues							180,332
Share Price | $ / shares							$ 83.73
Class 2 Common Stock [Member] | Contingent Consideration [Member]
Class Of Stock [Line Items]
Stock issued during period, shares, new issues	238,826
Class 2 Common Stock [Member] | Manitoba Harvest Acquisition [Member]
Class Of Stock [Line Items]
Stock issued during period, shares, new issues				899,306		1,209,946
Share Price | $ / shares				$ 35.48		$ 80.04
Class 2 Common Stock [Member] | S & S Acquisition [Member]
Class Of Stock [Line Items]
Stock issued during period, shares, new issues					79,289
Share Price | $ / shares					$ 40.22
Class 2 Common Stock [Member] | ABG [Member]
Class Of Stock [Line Items]
Stock issued during period, shares, new issues						840,107		840,107
Share Price | $ / shares						$ 79.35		$ 79.35
Fair value of common stock, per share | $ / shares						$ 59.77		$ 89.13
Class 2 Common Stock [Member] | Downstream Merger [Member] | Agreement and Plan of Merger and Reorganization with Privateer Holdings, Inc. (“Privateer”)
Class Of Stock [Line Items]
Capital stock outstanding prior to the effective time of the merger, cancelled and automatically converted solely into the right to receive the applicable portion of an aggregate shares									58,333,333
Class 1 Common Stock [Member] | Downstream Merger [Member] | Agreement and Plan of Merger and Reorganization with Privateer Holdings, Inc. (“Privateer”)
Class Of Stock [Line Items]
Capital stock outstanding prior to the effective time of the merger, cancelled and automatically converted solely into the right to receive the applicable portion of an aggregate shares									16,666,667