Annual report pursuant to Section 13 and 15(d)

Leases - Lease Cost (Details)

v3.20.2
Leases - Lease Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Lease, Cost [Abstract]      
Amortization of ROU assets   $ 2,112  
Interest on lease liabilities   206  
Operating lease cost (a)   23,735  
Variable lease cost (a)   5,298  
Sublease income   (732)  
Total lease cost   30,619  
Annual rental expense under operating leases $ 29,033 $ 38,015 $ 38,934
Cash paid for finance and operating lease liabilities:      
Operating cash flows from finance leases 207    
Operating cash flows from operating leases 29,309    
Financing cash flows from finance leases 2,064    
ROU assets obtained in exchange for new finance lease liabilities 2,613    
ROU assets obtained in exchange for new operating lease liabilities $ 12,442    
Weighted Average Remaining Lease Term [Abstract]      
Weighted-average remaining lease term - finance leases (years) 4 years 4 months 20 days    
Weighted-average remaining lease term - operating leases (years) 3 years 6 months 7 days    
Weighted Average Discount Rate [Abstract]      
Weighted-discount rate - finance leases 2.89%    
Weighted-discount rate - operating leases 2.82%