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Long-Term Debt, Finance Leases, and Other Borrowings - Schedule of Principal Maturities of Long-term Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Sep. 30, 2020
Long Term Debt By Maturity [Abstract]    
2022 $ 113,682  
2023 89,462  
2024 61,209  
2025 56,526  
2026 260,045  
Thereafter 89,411  
Long-term debt $ 670,335 $ 743,250