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LEASES (Tables) | 12 Months Ended
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Sep. 30, 2025
Leases [Abstract] |
Schedule of Lease Position and Recognized Right-of-Use Assets | Lease Position
(in thousands) | September 30, 2025 |  | September 30, 2024
Operating lease commitments, including probable extensions 1 | $ | 158,086 |  |  | $ | 104,535 |
Discounted using the lessee's incremental borrowing rate | $ | 147,581 |  |  | $ | 77,316 |
(Less): short-term leases recognized on a straight-line basis as expense | (864) |  |  | (404) |
(Less): other | (637) |  |  | (182) |
Lease liability recognized | $ | 146,080 |  |  | $ | 76,730 |
Of which: |  |  |
Current lease liabilities | $ | 35,960 |  |  | $ | 16,997 |
Non-current lease liabilities | 110,120 |  |  | 59,733 |
(1)Our future minimal rental payments exclude optional extensions that have not been exercised but are probable to be exercised in the future. Those probable extensions are included in the operating lease liability balance. The recognized right-of-use assets relate to the following types of assets:
(in thousands) | September 30, 2025 |  | September 30, 2024
Real estate properties | $ | 113,877 |  |  | $ | 66,842 |
Drilling equipment | 9,721 |  |  | 234 |
Total right-of-use assets | $ | 123,598 |  |  | $ | 67,076 |
Schedule of Certain Information Related to Lease Costs and Other Information Related to Operating Leases | The following table presents certain information related to the lease costs for our operating leases:
| Year ended September 30,
(in thousands) | 2025 |  | 2024 |  | 2023
Operating lease cost | $ | 30,795 |  |  | $ | 11,693 |  |  | $ | 11,004 |
Short-term lease cost | 25,795 |  |  | 1,567 |  |  | 1,437 |
Total lease cost | $ | 56,590 |  |  | $ | 13,260 |  |  | $ | 12,441 |
Lease Terms and Discount Rates The table below presents certain information related to the weighted average remaining lease terms and weighted average discount rates for our operating leases:
| September 30, 2025 |  | September 30, 2024
Weighted average remaining lease term | 9.9 |  | 11.6
Weighted average discount rate | 5.2 | % |  | 5.1 | %
Schedule of Future Minimum Rental Payments Required under Operating Lease | Future minimum rental payments required under operating leases having initial or remaining non-cancelable lease terms in excess of one year at September 30, 2025 (in thousands) are as follows:
Fiscal Year | Amount
2026 | $ | 31,067 |
2027 | 17,672 |
2028 | 15,888 |
2029 | 14,677 |
2030 | 12,777 |
Thereafter | 66,005 |
Total 1 | $ | 158,086 |
(1)Our future minimal rental payments exclude optional extensions that have not been exercised but are probable to be exercised in the future. Those probable extensions are included in the operating lease liability balance.

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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 -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
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