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LEASES (Tables) | 9 Months Ended
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Jun. 30, 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 Ended | Nine Months Ended |  |
|  | June 30, | June 30, |  |
(Thousands) | Income Statement Location | 2021 | 2020 | 2021 | 2020 |  |
Operating lease cost (1) | Operation and maintenance | $ | 2,366 |  | 1,650 |  | 5,811 |  | 4,761 |  |  |
Finance lease cost |  |  |  |  |  |  |
Amortization of right-of-use assets | Depreciation and amortization | $ | 640 |  | $ | 1,274 |  | $ | 3,077 |  | $ | 3,734 |  |  |
Interest on lease liabilities | Interest expense, net of capitalized interest | 193 |  | 248 |  | 527 |  | 796 |  |  |
Total finance lease cost |  | 833 |  | 1,522 |  | 3,604 |  | 4,530 |  |  |
Short-term lease cost | Operation and maintenance | 127 |  | 95 |  | 381 |  | 721 |  |  |
Variable lease cost | Operation and maintenance | 262 |  | 597 |  | 964 |  | 1,707 |  |  |
Total lease cost |  | $ | 3,588 |  | $ | 3,864 |  | $ | 10,760 |  | $ | 11,719 |  |  |
(1)Net of capitalized costs. The following table presents supplemental cash flow information related to leases:
| Nine Months Ended |  |
| June 30, |  |
(Thousands) | 2021 | 2020 |  |
Cash paid for amounts included in the measurement of lease liabilities |  |  |  |
Operating cash flows for operating leases | $ | 4,539 |  | $ | 4,133 |  |  |
Operating cash flows for finance leases | $ | 984 |  | $ | 952 |  |  |
Financing cash flows for finance leases | $ | 6,930 |  | $ | 5,505 |  |  |
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, 2021 | September 30, 2020
Assets |  |  |
Noncurrent |  |  |
Operating lease assets | Operating lease assets | $ | 142,753 |  | $ | 131,769 |
Finance lease assets | Utility plant | 13,853 |  | 71,085 |
Total lease assets |  | $ | 156,606 |  | $ | 202,854 |
Liabilities |  |  |
Current |  |  |
Operating lease liabilities | Operating lease liabilities | $ | 4,588 |  | $ | 6,724 |
Finance lease liabilities | Current maturities of long-term debt | 5,625 |  | 10,416 |
Noncurrent |  |  |
Operating lease liabilities | Operating lease liabilities | 109,993 |  | 95,030 |
Finance lease liabilities | Long-term debt | 15,761 |  | 63,743 |
Total lease liabilities |  | $ | 135,967 |  | $ | 175,913 |

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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=121609121&loc=SL77918686-209980 + Details
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- References No definition available. + Details
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