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Financial instruments - Trade and Other Receivables Reconciliation (Details) ¥ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2022 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Financial instruments [Line Items] |  |  |  |  |
Gross receivables |  |  | $ 1,098,326,000 | $ 674,244,000 |
Impairment provision for doubtful receivables |  |  | (8,815,000) | (13,999,000) |
Trade receivables, net |  |  | 1,089,511,000 | 660,245,000 |
Guarantee Deposits [abstract] |  |  |  |  |
Payments to acquire new plant |  |  | 905,247,000 | 464,718,000 | $ 322,242,000
Battery-Grade Lithium Hydroxide Monohydrate Plant |  |  |  |  |
Guarantee Deposits [abstract] |  |  |  |  |
Number of Metric tons capacity | 20,000 |  |  |  |
Payments to acquire new plant | $ 125,591,000 | ¥ 869.0 |  |  |
Battery-Grade Lithium Hydroxide Monohydrate Plant | First installment |  |  |  |  |
Guarantee Deposits [abstract] |  |  |  |  |
Payments to acquire new plant | 29,322,000 | 204.5 |  |  |
Battery-Grade Lithium Hydroxide Monohydrate Plant | Second installment |  |  |  |  |
Guarantee Deposits [abstract] |  |  |  |  |
Payments to acquire new plant | $ 8,310,000 | ¥ 57.5 |  |  |
Receivables related to credit operations, current |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |
Gross receivables |  |  | 1,006,982,000 | 600,664,000 |
Impairment provision for doubtful receivables |  |  | (4,759,000) | (10,352,000) |
Trade receivables, net |  |  | 1,002,223,000 | 590,312,000 |
Prepayments, current |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |
Gross receivables |  |  | 39,493,000 | 49,952,000 |
Impairment provision for doubtful receivables |  |  | (784,000) | (784,000) |
Trade receivables, net |  |  | 38,709,000 | 49,168,000 |
Other receivables, current |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |
Gross receivables |  |  | 19,920,000 | 17,073,000 |
Impairment provision for doubtful receivables |  |  | (3,272,000) | (2,863,000) |
Trade receivables, net |  |  | 16,648,000 | 14,210,000 |
Guarantee deposits |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |
Gross receivables |  |  | 29,840,000 | 383,000 |
Impairment provision for doubtful receivables |  |  | 0 | 0 |
Trade receivables, net |  |  | 29,840,000 | 383,000 |
Other receivables, non-current |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |
Gross receivables |  |  | 2,091,000 | 6,172,000 |
Impairment provision for doubtful receivables |  |  | 0 | 0 |
Trade receivables, net |  |  | $ 2,091,000 | $ 6,172,000 |

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