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LEASES (Tables) | 9 Months Ended
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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 Ended | Nine Months Ended
|  | June 30, | June 30,
(Thousands) | Income Statement Location | 2022 | 2021 | 2022 | 2021
Operating lease cost (1) | Operation and maintenance | $ | 2,343 |  | $ | 2,366 |  | $ | 7,377 |  | $ | 5,811 |
Finance lease cost |  |  |  |  |
Amortization of right-of-use assets | Depreciation and amortization | 458 |  | 640 |  | 1,311 |  | 3,077 |
Interest on lease liabilities | Interest expense, net of capitalized interest | 220 |  | 193 |  | 404 |  | 527 |
Total finance lease cost |  | 678 |  | 833 |  | 1,715 |  | 3,604 |
Short-term lease cost | Operation and maintenance | — |  | 127 |  | 23 |  | 381 |
Variable lease cost | Operation and maintenance | 182 |  | 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) | 2022 | 2021
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 Location | June 30, 2022 | September 30, 2021
Assets |  |  |
Noncurrent |  |  |
Operating lease assets | Operating lease assets | $ | 169,884 |  | $ | 173,928 |
Finance lease assets | Utility plant | 22,370 |  | 13,489 |
Total lease assets |  | $ | 192,254 |  | $ | 187,417 |
Liabilities |  |  |
Current |  |  |
Operating lease liabilities | Operating lease liabilities | $ | 4,893 |  | $ | 4,300 |
Finance lease liabilities | Current maturities of long-term debt | 6,491 |  | 5,393 |
Noncurrent |  |  |
Operating lease liabilities | Operating lease liabilities | 139,289 |  | 141,363 |
Finance lease liabilities | Long-term debt | 25,404 |  | 14,742 |
Total lease liabilities |  | $ | 176,077 |  | $ | 165,798 |

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- Definition Assets And Liabilities, Lessee [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- References No definition available. + Details
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