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Joint Ventures - Narrative (Details) - USD ($) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 09, 2021 | Jan. 17, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2017
Statement [Line Items] |  |  |  |  |  |  |  |  |
Other cash payments to acquire interests in joint ventures, classified as investing activities |  |  |  |  |  | $ 0 | $ 0 | $ 16,949,000 |
Gain loss on disposal of investments in joint ventures |  |  |  | $ 643,000 |  |  |  |  |
Soquimich European Holding B.V. |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Other cash payments to acquire interests in joint ventures, classified as investing activities |  |  |  |  | $ 1,276,000 |  |  |  |
Arpa Speciali SRL |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Disposal of interests in joint ventures consideration receivable |  |  |  |  | 56,000 |  |  |  |
Gain loss on disposal of investments in joint ventures |  |  |  |  | 125,000 |  |  |  |
Proceeds from disposal of interests in joint ventures |  |  |  |  | 17,000 |  |  |  |
Arpa Speciali SRL | Other accounts receivable |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Disposal of interest in joint ventures balance consideration receivable current |  |  |  |  | $ 20,000 |  |  |  |
Coromandel SQM India |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from disposal of interests in joint ventures |  |  |  | $ 1,604,000 |  |  |  |  |
SQM Qinqdao Star Corp Nutrition Co. Ltd. |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Gain loss on disposal of investments in joint ventures |  |  | $ 62,000 |  |  |  |  |  |
Proceeds from disposal of interests in joint ventures |  |  | 1,303,000 |  |  |  |  |  |
Sichuan SQM Migao Chemical Fertilizers Co Ltd. |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Reversal of impairment losses on investment in associates |  |  | $ 7,036,000 |  |  |  |  |  |
Sales contracts and interest in the joint venture | $ 11,500,000 |  |  |  |  |  |  |  |
Mt Holland |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |
Other cash payments to acquire interests in joint ventures, classified as investing activities |  | $ 700,000,000 |  |  |  |  |  |  |
Ownership Interest |  |  |  |  |  |  |  |  | 50.00%
Number of Metric tons capacity |  |  |  |  |  | 50,000 |  |  |
Contribution towards projects in joint operations |  |  |  |  |  | $ 475,000,000 |  |  |
Pending contribution towards investment |  |  |  |  |  | $ 450,000,000 |  |  |

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