Related party transactions - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Revenues	$ 8,400,000	$ 3,600,000	$ 12,600,000	$ 7,200,000
Accounts payable	103,600,000		103,600,000		$ 134,500,000
Accounts receivable, net	5,700,000		5,700,000		1,000,000.0
Product revenue
Related Party Transaction [Line Items]
Revenues	5,200,000	3,100,000	7,100,000	6,200,000
Related Party
Related Party Transaction [Line Items]
Accounts payable	300,000		300,000
Accounts receivable, net					$ 200,000
Related Party | Glencore [Member]
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction	100,000	100,000	100,000	100,000
Related Party | Fade In Production Pty. [Member]
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction			100,000	100,000
Related Party | Consulero Inc. [Member]
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction	0	100,000	100,000	100,000
Related Party | Product revenue
Related Party Transaction [Line Items]
Revenue from contract with customer, gain (loss) from settlement of prior period sales	$ (100,000)		$ 300,000
Revenues		$ 300,000		$ 1,200,000