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Investments in and Advances to Affiliates (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Investments in and Advances to Affiliates [Line Items] |  |  |
Investments | $ 16,405 | $ 14,286 |
Total investments | $ 16,405 | 14,286 |
CSI Compressco |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |
Ownership percentage | 3.70% |  |
Total investments | $ 7,228 | 6,967 |
CarbonFree |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |
Investments |  |  | $ 5,000
Total investments | 6,563 | 6,139 |
Standard Lithium |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |
Total investments | 2,264 | 1,180 |
Other Investments |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |
Investments | 350 | $ 0 |
Total investments | $ 350 |  |

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