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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Investments in and Advances to Affiliates [Line Items] |  |
Total investments | $ 8,971 | $ 28,159
Kodiak |  |
Investments in and Advances to Affiliates [Line Items] |  |
Total investments | 0 | 18,393
Standard Lithium |  |
Investments in and Advances to Affiliates [Line Items] |  |
Total investments | 1,568 | 1,168
Other investments |  |
Investments in and Advances to Affiliates [Line Items] |  |
Total investments | $ 7,403 | $ 8,598

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