Quarterly report pursuant to Section 13 or 15(d)

Debt and Financing Arrangements - Narrative (Details)

v3.23.2
Debt and Financing Arrangements - Narrative (Details)
€ in Millions
 9 Months Ended
Jun. 30, 2023
USD ($)
Jun. 30, 2023
EUR (€)
Sep. 30, 2022
USD ($)
Sep. 30, 2022
EUR (€)
Jun. 30, 2022
Line of Credit Facility [Line Items]          
Other borrowings $ 774,997,000   $ 798,568,000    
2025 Senior Notes          
Line of Credit Facility [Line Items]          
Unamortized debt costs 1,260,000   1,664,000    
Other borrowings $ 298,365,000   297,961,000    
Other borrowings          
Line of Credit Facility [Line Items]          
Weighted-average interest rate on outstanding borrowings (as a percent) 2.44% 2.44%     1.90%
Other borrowings $ 17,345,000   13,434,000    
Foreign Line of Credit | Credit Facility With European Bank          
Line of Credit Facility [Line Items]          
Maximum amount of borrowings available 10,886,000 € 10.0      
Outstanding borrowings $ 2,362,000 € 2.2 8,050,000 € 8.2  
Weighted-average interest rate on outstanding borrowings (as a percent) 5.65% 5.65%     2.25%
Foreign Line of Credit | Bank Guarantees | Credit Facility With European Bank          
Line of Credit Facility [Line Items]          
Maximum amount of borrowings available $ 17,418,000 € 16.0      
March 2020 Debt Amendment | Revolving credit facilities          
Line of Credit Facility [Line Items]          
Maximum amount of borrowings available 750,000,000        
Maximum borrowing amount drawn In foreign currency 350,000,000        
Unamortized debt costs $ 1,065,000   1,522,000    
March 2020 Debt Amendment | Revolving credit facilities | Minimum          
Line of Credit Facility [Line Items]          
Annual commitment fee range on unused portion (as a percent) 0.15%        
March 2020 Debt Amendment | Revolving credit facilities | Maximum          
Line of Credit Facility [Line Items]          
Annual commitment fee range on unused portion (as a percent) 0.30%        
March 2020 Debt Amendment | Revolving credit facilities | SOFR          
Line of Credit Facility [Line Items]          
Rate spread adjustment (as a percent) 0.10%        
Interest rate during period (as a percent) 1.25%        
March 2020 Debt Amendment | Revolving credit facilities | SOFR | Minimum          
Line of Credit Facility [Line Items]          
Interest rate on borrowings (as a percent) 0.75%        
March 2020 Debt Amendment | Revolving credit facilities | SOFR | Maximum          
Line of Credit Facility [Line Items]          
Interest rate on borrowings (as a percent) 2.00%        
March 2020 Debt Amendment | Revolving credit facilities | LIBOR | Minimum          
Line of Credit Facility [Line Items]          
Interest rate on borrowings (as a percent) 0.75%        
March 2020 Debt Amendment | Revolving credit facilities | LIBOR | Maximum          
Line of Credit Facility [Line Items]          
Interest rate on borrowings (as a percent) 2.00%        
March 2020 Debt Amendment | Domestic Revolving Credit Facility          
Line of Credit Facility [Line Items]          
Maximum available for issuance of trade and standby letters of credit $ 55,000,000        
Weighted-average interest rate on outstanding borrowings (as a percent) 5.59% 5.59%     1.92%
March 2020 Debt Amendment | Domestic Revolving Credit Facility | United States of America, Dollars          
Line of Credit Facility [Line Items]          
Outstanding borrowings $ 450,329,000   472,057,000    
Senior Notes 2025 | 2025 Senior Notes          
Line of Credit Facility [Line Items]          
Debt issued amount $ 299,625,000        
Fixed interest rate (as a percent) 5.25% 5.25%      
Receivables Purchase Agreement          
Line of Credit Facility [Line Items]          
Facility limit $ 125,000        
Receivables sold to purchasers 113,200,000   96,590,000    
Unsold receivables 48,501,000   $ 44,262,000    
Principal amount of receivables sold 36,045,000        
Factored accounts receivable, outstanding $ 15,714,000