Quarterly report pursuant to Section 13 or 15(d)

Debt - Long-Term Debt (Details)

v3.21.2
Debt - Long-Term Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Sep. 30, 2020
Debt Instrument [Line Items]    
Long-term debt $ 792,487 $ 834,534
Finance lease obligations 10,251 9,684
Less current maturities (4,994) (26,824)
Total long-term debt and lease obligations, excluding current maturities 787,493 807,710
Senior secured term loan    
Debt Instrument [Line Items]    
Long-term debt 0 22,359
2025 Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 297,661 297,256
Other borrowings    
Debt Instrument [Line Items]    
Long-term debt 11,612 20,742
Revolving Credit Facility | Line of Credit    
Debt Instrument [Line Items]    
Long-term debt 382,253 416,793
Securitization Facility    
Debt Instrument [Line Items]    
Long-term debt $ 90,710 $ 67,700