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Investments and Advances to Joint Ventures - Schedule of Equity Method Investments (Details) - USD ($)						3 Months Ended		6 Months Ended
	Nov. 07, 2019	Nov. 06, 2019	Oct. 25, 2019	Jun. 14, 2018	Mar. 13, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Investments in equity accounted investees						$ 933,000		$ 933,000		$ 557,000
Share of earnings (loss) from investments in equity accounted investees						(794,000)	$ (741,000)	(1,966,000)	$ (939,000)
IPO | Cronos Australia
Schedule of Equity Method Investments [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			40,000,000
Sale of stock, price per share (in aud per share)			$ 0.50
Whistler
Schedule of Equity Method Investments [Line Items]
Share of earnings (loss) from investments in equity accounted investees						$ 0	0	$ 0	29,000
Cronos Australia
Schedule of Equity Method Investments [Line Items]
Ownership percentage (Whistler - less than)						31.00%		31.00%
Investments in equity accounted investees						$ 0		$ 0		(346,000)
Share of earnings (loss) from investments in equity accounted investees						(235,000)	(397,000)	(235,000)	(641,000)
Share of accumulated net losses in excess of its equity investment and advances						$ 512,000	0	$ 512,000	0
Cronos Australia | Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Ownership percentage	31.00%	50.00%
Cronos GrowCo
Schedule of Equity Method Investments [Line Items]
Ownership percentage (Whistler - less than)						50.00%		50.00%
Investments in equity accounted investees						$ 933,000		$ 933,000		1,501,000
Share of earnings (loss) from investments in equity accounted investees						$ (190,000)	(38,000)	$ (501,000)	(27,000)
Cronos GrowCo | Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Ownership percentage				50.00%
MedMen Canada
Schedule of Equity Method Investments [Line Items]
Ownership percentage (Whistler - less than)						50.00%		50.00%
Investments in equity accounted investees						$ 0		$ 0		0
Share of earnings (loss) from investments in equity accounted investees						$ 0	(2,000)	$ 0	4,000
MedMen Canada | Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Ownership percentage					50.00%
Natuera
Schedule of Equity Method Investments [Line Items]
Ownership percentage (Whistler - less than)						50.00%		50.00%
Investments in equity accounted investees						$ 0		$ 0		$ (598,000)
Share of earnings (loss) from investments in equity accounted investees						$ (369,000)	$ (304,000)	$ (1,230,000)	$ (304,000)
Natuera | Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Ownership percentage								50.00%

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- Definition

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 Equity in net profit and loss for the period. Give totals for each group. If operations of any controlled companies are different in character from those of the company, group such affiliates (1) within divisions and (2) by type of activities.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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