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Investments subject to significant influence - Schedule of Fair Value and Equity Method (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Apr. 06, 2023
Carried at fair value
Change in fair value			$ 1,621
Equity method
Beginning balance			0
Investment			2,291
Share of loss	$ (606)	$ (1,550)	(1,228)	$ (1,550)
Reclassification to other investments			(309)
Total
Beginning Balance			5,998
Foreign currency translation			9
Ending Balance	8,382		8,382
Sama
Carried at fair value
Beginning balance			4,799
Change in fair value			1,621
Foreign currency translation			0
Ending balance	6,420		6,420
Fjordland
Carried at fair value
Beginning balance			309
Change in fair value			0
Foreign currency translation			0
Ending balance	0		0
Equity method
Reclassification to other investments			(309)
SNC
Equity method
Beginning balance			890
Investment			1,158
Share of loss			(1,228)
Foreign currency translation			9
Ending balance	829		829
Go2Lithium
Equity method
Investment			1,133
Ending balance	$ 1,133		$ 1,133
Go2Lithium | CGI And Clean TeQ Water Limited
Total
Ownership percentage in outstanding common shares (in percent)					50.00%

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