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Investments - Schedule of Equity Method Investments (Details) $ in Thousands, $ in Thousands |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 25, 2020 USD ($) | Sep. 25, 2020 CAD ($) | Nov. 07, 2019 | Nov. 06, 2019 | Oct. 25, 2019 $ / shares shares | Jun. 14, 2018 | Mar. 13, 2018 | Dec. 31, 2020 USD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investments in equity accounted investees |  |  |  |  |  |  |  | $ 19,235 |  | $ 557 | $ 2,960
Advances to affiliates |  |  |  |  |  |  |  |  |  | 15,135 |
Transfer to investments in equity accounted investees |  |  |  |  |  |  |  | 18,505 |  |  |
Share of loss from investments in equity accounted investees |  |  |  |  |  |  |  | (4,510) |  | (2,009) | (723)
Equity Method Investment, Summarized Financial Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  | 1,372,172 |  | 1,573,260 |
Current liabilities |  |  |  |  |  |  |  | 206,834 |  | 332,888 |
Income Statement [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  | 46,719 |  | 23,750 | 12,121
Gross profit |  |  |  |  |  |  |  | (25,833) |  | (17,597) | 6,213
Net loss |  |  |  |  |  |  |  | (75,270) |  | 1,165,574 | (21,817)
Equity Method Investments |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Summarized Financial Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  | 19,126 |  | 23,200 | 7,121
Non-current assets |  |  |  |  |  |  |  | 122,099 |  | 76,212 | 27,129
Current liabilities |  |  |  |  |  |  |  | 24,223 |  | 52,796 | 3,746
Non-current liabilities |  |  |  |  |  |  |  | 76,313 |  | 33,189 | 13,201
Income Statement [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  | 367 |  | 52 | 5,344
Gross profit |  |  |  |  |  |  |  | (631) |  | 0 | 0
Net loss |  |  |  |  |  |  |  | $ (11,453) |  | (2,048) | (874)
IPO | Cronos Australia |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) | shares |  |  |  |  | 40,000,000 |  |  |  |  |  |
Sale of stock, price per share (in aud per share) | $ / shares |  |  |  |  | $ 0.50 |  |  |  |  |  |
Cronos Australia |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  | 31.00% |  |  |
Investments in equity accounted investees |  |  |  |  |  |  |  | $ 0 |  | (346) |
Advances to affiliates |  |  |  |  |  |  |  |  |  | 274 |
Transfer to investments in equity accounted investees |  |  |  |  |  |  |  | 0 |  |  |
Share of loss from investments in equity accounted investees |  |  |  |  |  |  |  | $ (363) |  | $ (1,101) | (588)
Cronos Australia | Variable Interest Entity, Not Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  | 31.00% | 50.00% |  |  |  | 31.00% | 31.00% | 31.00% |
Cronos GrowCo |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  | 50.00% |  |  |
Investments in equity accounted investees |  |  |  |  |  |  |  | $ 19,235 |  | $ 1,501 |
Advances to affiliates | $ 37,010 | $ 49,300 |  |  |  |  |  |  |  | 15,494 |
Transfer to investments in equity accounted investees | $ 18,505 | $ 24,650 |  |  |  |  |  | 18,505 | $ 24,650 |  |
Share of loss from investments in equity accounted investees |  |  |  |  |  |  |  | $ (1,537) |  | $ (167) | (100)
Cronos GrowCo | Variable Interest Entity, Not Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  | 50.00% |  | 50.00% | 50.00% | 50.00% |
Cronos GrowCo | Cronos Group, Inc. |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Funding commitment percentage | 0.50 | 0.50 |  |  |  |  |  |  |  |  |
Cronos GrowCo | Mucci |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Advances to affiliates | $ 18,505 | $ 24,650 |  |  |  |  |  |  |  |  |
Funding commitment percentage | 0.50 | 0.50 |  |  |  |  |  |  |  |  |
Natuera |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  | 50.00% |  |  |
Investments in equity accounted investees |  |  |  |  |  |  |  | $ 0 |  | $ (598) |
Advances to affiliates |  |  |  |  |  |  |  |  |  | 219 |
Transfer to investments in equity accounted investees |  |  |  |  |  |  |  | 0 |  |  |
Share of loss from investments in equity accounted investees |  |  |  |  |  |  |  | $ (2,610) |  | $ (805) | 0
Natuera | Variable Interest Entity, Not Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% |
Whistler |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share of loss from investments in equity accounted investees |  |  |  |  |  |  |  | $ 0 |  | $ 29 | 178
MedMen Canada |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Advances to affiliates |  |  |  |  |  |  |  |  |  | (852) |
Transfer to investments in equity accounted investees |  |  |  |  |  |  |  | 0 |  |  |
Share of loss from investments in equity accounted investees |  |  |  |  |  |  |  | $ 0 |  | $ 35 | $ (213)
MedMen Canada | Variable Interest Entity, Not Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |

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