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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Accounting Policies [Abstract] |
Accounts Receivable, Doubtful Accounts Table | Changes in the allowance are as follows:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
|  | (In Thousands)
At beginning of period |  | $ | 538 |  |  | $ | 289 |  |  | $ | 6,824 |
Activity in the period: |  |  |  |  |  |
Provision for credit losses |  | 285 |  |  | 257 |  |  | (4) |
Account charge offs, net of recoveries |  | (209) |  |  | (8) |  |  | (6,531) |
At end of period |  | $ | 614 |  |  | $ | 538 |  |  | $ | 289 |
Property, Plant, and Equipment Table | Property, plant, and equipment are stated at cost. Expenditures that increase the useful lives of assets are capitalized. The cost of repairs and maintenance is charged to operations as incurred. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which are generally as follows:
Buildings |  | 25 years
Machinery and equipment |  | 3 – 10 years
Automobiles and trucks |  | 4 – 5 years
Chemical plants |  | 15 – 30 years
Schedule of Cash Flow, Supplemental Disclosures | Supplemental cash flow information from continuing and discontinued operations is as follows:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (in thousands)
Supplemental cash flow information(1): |  |  |  |  |
Interest paid | $ | 19,171 |  |  | $ | 15,669 |  |  | $ | 14,347 |
Income taxes paid | $ | 4,782 |  |  | $ | 3,270 |  |  | $ | 2,100 |
| December 31,
| 2023 |  | 2022 |  | 2021
| (in thousands)
Accrued capital expenditures | $ | 5,171 |  |  | $ | 4,901 |  |  | $ | 5,356 |
(1) Information for the year ended December 31, 2021 includes activity for CSI Compressco for January only.

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