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COMMITMENTS AND CONTINGENCIES - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Operating leases |  |
Other assets: Other | $ 15,589 | $ 14,402
Other accrued liabilities | 1,757 | 1,452
Other long-term liabilities | 13,868 | 12,928
Total | 15,625 | 14,380
Finance leases |  |
Depreciable plant and equipment | 18,207 | 18,207
Accumulated depreciation and amortization | (10,813) | (9,644)
Net utility plant | 7,394 | 8,563
Current maturities of long-term debt, net | 721 | 680
Long-term debt, net | 4,483 | 5,205
Total finance lease liabilities | $ 5,204 | $ 5,885
Weighted average remaining lease term |  |
Operating leases | 135 months | 152 months
Finance leases | 64 months | 76 months
Weighted average discount rate |  |
Operating leases | 3.50% | 3.70%
Finance leases | 5.50% | 5.50%
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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