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COMMITMENTS AND CONTINGENCIES - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Operating leases |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Other | Other
Other assets: Other | $ 13,387 | $ 14,762
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Other accrued liabilities | Other accrued liabilities
Other accrued liabilities | $ 962 | $ 1,065
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other long-term liabilities | Other long-term liabilities
Other long-term liabilities | $ 12,605 | $ 13,838
Total | 13,567 | 14,903
Finance leases |  |
Depreciable plant and equipment | 19,087 | 19,820
Accumulated depreciation and amortization | (14,339) | (14,017)
Net utility plant | $ 4,748 | $ 5,803
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Current maturities of long-term debt, net | Current maturities of long-term debt, net
Current maturities of long-term debt, net | $ 844 |
Current maturities of long-term debt, net |  | $ 2,555
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Long-term debt, net | Long-term debt, net
Long-term debt, net | $ 3,057 | $ 2,675
Total finance lease liabilities | $ 3,901 | $ 5,230
Weighted average remaining lease term |  |
Operating leases | 112 months | 119 months
Finance leases | 29 months | 32 months
Weighted average discount rate |  |
Operating leases | 3.60% | 3.50%
Finance leases | 5.50% | 4.40%

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