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Long-Term Debt and Lines of Credit - Schedule of Interest Costs Expensed and Capitalized (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021
Debt Disclosure [Abstract] |  |  |  |
Interest expense | $ 870 | $ 1,089 | $ 1,771 | $ 2,278
Interest capitalized | 328 | 349 | 631 | 661
Total | $ 1,198 | $ 1,438 | $ 2,402 | $ 2,939

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