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LEASES (Tables)
 9 Months Ended
Jun. 30, 2022
Leases [Abstract]  
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 Location2022202120222021
Operating lease cost (1)
Operation and maintenance$2,343 $2,366 $7,377 $5,811 
Finance lease cost
Amortization of right-of-use assetsDepreciation and amortization458 640 1,311 3,077 
Interest on lease liabilitiesInterest expense, net of capitalized interest220 193 404 527 
Total finance lease cost678 833 1,715 3,604 
Short-term lease costOperation and maintenance— 127 23 381 
Variable lease costOperation and maintenance182 262 545 964 
Total lease cost$3,203 $3,588 $9,660 $10,760 
(1)Net of capitalized costs.

The following table presents supplemental cash flow information related to leases:
Nine Months Ended
June 30,
(Thousands)20222021
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows for operating leases$5,205 $4,539 
Operating cash flows for finance leases$623 $984 
Financing cash flows for finance leases$5,540 $6,930 
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,
2022		September 30,
2021
Assets
Noncurrent
Operating lease assetsOperating lease assets$169,884 $173,928 
Finance lease assetsUtility plant22,370 13,489 
Total lease assets$192,254 $187,417 
Liabilities
Current
Operating lease liabilitiesOperating lease liabilities$4,893 $4,300 
Finance lease liabilitiesCurrent maturities of long-term debt6,491 5,393 
Noncurrent
Operating lease liabilitiesOperating lease liabilities139,289 141,363 
Finance lease liabilitiesLong-term debt25,404 14,742 
Total lease liabilities$176,077 $165,798