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DEBT (Tables) | 9 Months Ended
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Jun. 30, 2026
Debt Disclosure [Abstract] |
Schedule of Components of Unsecured Long-Term Debt Outstanding | As of June 30, 2026 and September 30, 2025, we have the following debt outstanding with maturities shown in the following table:
| June 30, 2026 |  | September 30, 2025
(in thousands) | Face Amount |  | Unamortized Discount and Debt Issuance Cost |  | Book Value |  | Face Amount |  | Unamortized Discount and Debt Issuance Cost |  | Book Value
Unsecured senior notes: |  |  |  |  |  |  |  |  |  |  |
Due December 1, 2027 | $ | 350,000 |  |  | $ | (1,554) |  |  | $ | 348,446 |  |  | $ | 350,000 |  |  | $ | (2,326) |  |  | $ | 347,674 |
Due December 1, 2029 | 350,000 |  |  | (2,842) |  |  | 347,158 |  |  | 350,000 |  |  | (3,398) |  |  | 346,602 |
Due September 29, 2031 | 550,000 |  |  | (3,213) |  |  | 546,787 |  |  | 550,000 |  |  | (3,664) |  |  | 546,336 |
Due December 1, 2034 | 550,000 |  |  | (6,371) |  |  | 543,629 |  |  | 550,000 |  |  | (6,803) |  |  | 543,197 |
Total unsecured senior notes | $ | 1,800,000 |  |  | $ | (13,980) |  |  | $ | 1,786,020 |  |  | $ | 1,800,000 |  |  | $ | (16,191) |  |  | $ | 1,783,809 |
Unsecured term loan credit agreement: |  |  |  |  |  |  |  |  |  |  |
Due January 15, 2027 | — |  |  | — |  |  | — |  |  | 200,000 |  |  | (980) |  |  | 199,020 |
Secured term loan credit agreements: |  |  |  |  |  |  |  |  |  |  |
Due December 31, 2033 | 37,212 |  |  | (807) |  |  | 36,405 |  |  | 39,789 |  |  | (888) |  |  | 38,901 |
Due December 31, 2034 | 40,523 |  |  | (832) |  |  | 39,691 |  |  | 43,091 |  |  | (878) |  |  | 42,213 |
Total secured term loan credit agreements | $ | 77,735 |  |  | $ | (1,639) |  |  | $ | 76,096 |  |  | $ | 82,880 |  |  | $ | (1,766) |  |  | $ | 81,114 |
Total debt | $ | 1,877,735 |  |  | $ | (15,619) |  |  | $ | 1,862,116 |  |  | $ | 2,082,880 |  |  | $ | (18,937) |  |  | $ | 2,063,943 |
Less: current portion of long-term debt | (6,859) |  |  | — |  |  | (6,859) |  |  | (6,859) |  |  | — |  |  | (6,859) |
Total long-term debt, net | $ | 1,870,876 |  |  | $ | (15,619) |  |  | $ | 1,855,257 |  |  | $ | 2,076,021 |  |  | $ | (18,937) |  |  | $ | 2,057,084 |
Schedule of Maturities of Long-Term Debt | The principal amount and maturities of our long-term debt as of June 30, 2026 are summarized in the table below:
(in thousands) |
Fiscal year: |
Remainder of 2026 | $ | 1,715 |
2027 | 6,859 |
2028 | 356,859 |
2029 | 8,577 |
2030 | 360,862 |
Thereafter | 1,142,863 |
Total | $ | 1,877,735 |

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