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LEASES (Tables)
 6 Months Ended
Mar. 31, 2021
Leases [Abstract]  
Lease, Cost
The following table presents the Company's lease costs included in the Unaudited Condensed Consolidated Statements of Operations:
Three Months EndedSix Months Ended
March 31,March 31,
(Thousands)Income Statement Location2021202020212020
Operating lease cost (1)
Operation and maintenance$1,356 1,719 3,445 3,111 
Finance lease cost
Amortization of right-of-use assetsDepreciation and amortization$1,191 $1,299 $2,437 $2,460 
Interest on lease liabilitiesInterest expense, net of capitalized interest113 301 334 548 
Total finance lease cost1,304 1,600 2,771 3,008 
Short-term lease costOperation and maintenance127 172 254 626 
Variable lease costOperation and maintenance549 403 702 1,110 
Total lease cost$3,336 $3,894 $7,172 $7,855 
(1)Net of capitalized costs.

The following table presents supplemental cash flow information related to leases:
Six Months Ended
March 31,
(Thousands)20212020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows for operating leases$2,932 $2,856 
Operating cash flows for finance leases$791 $704 
Financing cash flows for finance leases$5,690 $4,038 
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 LocationMarch 31,
2021		September 30,
2020
Assets
Noncurrent
Operating lease assetsOperating lease assets$144,326 $131,769 
Finance lease assetsUtility plant61,432 71,085 
Total lease assets$205,758 $202,854 
Liabilities
Current
Operating lease liabilitiesOperating lease liabilities$4,001 $6,724 
Finance lease liabilitiesCurrent maturities of long-term debt5,855 10,416 
Noncurrent
Operating lease liabilitiesOperating lease liabilities111,034 95,030 
Finance lease liabilitiesLong-term debt62,334 63,743 
Total lease liabilities$183,224 $175,913