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LEASES (Tables)
 9 Months Ended
Jun. 30, 2024
Leases [Abstract]  
Schedule of Lease, Cost
The following table presents the Company's lease costs included in the Unaudited Condensed Consolidated Statements of Operations:
Three Months EndedNine Months Ended
June 30,June 30,
(Thousands)Income Statement Location2024202320242023
Operating lease cost (1)
Operation and maintenance$2,595 $2,276 $7,659 $7,000 
Finance lease cost
Amortization of right-of-use assetsDepreciation and amortization540 540 1,620 1,565 
Interest on lease liabilitiesInterest expense, net of capitalized interest222 283 710 816 
Total finance lease cost762 823 2,330 2,381 
Variable lease costOperation and maintenance105 158 551 653 
Total lease cost$3,462 $3,257 $10,540 $10,034 
(1)Net of capitalized costs.

The following table presents supplemental cash flow information related to leases:
Nine Months Ended
June 30,
(Thousands)20242023
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows for operating leases$5,947 $5,739 
Operating cash flows for finance leases$710 $816 
Financing cash flows for finance leases$5,820 $5,470 
Schedule of Assets and Liabilities, Lessee
The following table presents the balance and classifications of the Company's right of use assets and lease liabilities included in the Unaudited Condensed Consolidated Balance Sheets:
(Thousands)Balance Sheet LocationJune 30,
2024		September 30,
2023
Assets
Noncurrent
Operating lease assetsOperating lease assets$185,506 $175,740 
Finance lease assetsUtility plant26,628 28,248 
Total lease assets$212,134 $203,988 
Liabilities
Current
Operating lease liabilitiesOperating lease liabilities$5,125 $4,772 
Finance lease liabilitiesCurrent maturities of long-term debt8,183 8,477 
Noncurrent
Operating lease liabilitiesOperating lease liabilities159,988 148,023 
Finance lease liabilitiesLong-term debt17,349 22,875 
Total lease liabilities$190,645 $184,147