Quarterly report pursuant to Section 13 or 15(d)

Debt and Financing Arrangements - Long-Term Debt (Details)

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Debt and Financing Arrangements - Long-Term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Sep. 30, 2023
Debt Instrument [Line Items]    
Total debt $ 842,776 $ 790,180
Finance lease obligations $ 16,157 $ 9,271
Finance lease, liability, statement of financial position [extensible enumeration] Long-term debt Long-term debt
Less current maturities $ (5,419) $ (3,696)
Long-term debt 837,357 786,484
2025 Senior Notes    
Debt Instrument [Line Items]    
Total debt 298,362 298,500
Other borrowings    
Debt Instrument [Line Items]    
Total debt 17,200 19,241
Revolving credit facilities | Line of Credit    
Debt Instrument [Line Items]    
Total debt $ 511,057 $ 463,168