The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Investments - Summary of Ownership Interests in Equity Method Investments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Carrying value	$ 8,911		$ 8,911		$ 11,448
Gain (loss) from equity method investments	$ (1,420)	$ (1,837)	$ (4,495)	$ (1,837)
Fluent [Member]
Schedule Of Equity Method Investments [Line Items]
Approximate ownership %	50.00%		50.00%		50.00%
Carrying value	$ 5,147		$ 5,147		$ 7,836
Gain (loss) from equity method investments			$ (4,725)	$ (1,837)
Cannfections [Member]
Schedule Of Equity Method Investments [Line Items]
Approximate ownership %	50.00%		50.00%		50.00%
Carrying value	$ 3,764		$ 3,764		$ 3,612
Gain (loss) from equity method investments			$ 230