Quarterly report pursuant to Section 13 or 15(d)

Debt - Long-Term Debt (Details)

v3.21.1
Debt - Long-Term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Sep. 30, 2020
Debt Instrument [Line Items]    
Long-term debt $ 782,483 $ 834,534
Finance lease obligations 7,993 9,684
Less current maturities (4,274) (26,824)
Total long-term debt and lease obligations, excluding current maturities 778,209 807,710
Senior secured term loan    
Debt Instrument [Line Items]    
Long-term debt 0 22,359
2025 Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 297,526 297,256
Other borrowings    
Debt Instrument [Line Items]    
Long-term debt 12,022 20,742
Revolving Credit Facility | Line of Credit    
Debt Instrument [Line Items]    
Long-term debt 367,352 416,793
Securitization Facility    
Debt Instrument [Line Items]    
Long-term debt $ 97,590 $ 67,700