Annual report pursuant to Section 13 and 15(d)

LEASES - Lease Cost (Details)

v3.21.2
LEASES - Lease Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Lease, Cost [Abstract]      
Amortization of ROU assets $ 4,016 $ 2,112  
Interest on lease liabilities 248 206  
Operating lease cost 21,716 23,735  
Variable lease cost 6,752 5,298  
Sublease income (83) (732)  
Total lease cost 32,649 30,619  
Annual rental expense under operating leases 28,468 29,033 $ 38,015
Cash paid for finance and operating lease liabilities:      
Operating cash flows from finance leases 255 207  
Operating cash flows from operating leases 28,246 29,309  
Financing cash flows from finance leases 4,134 2,064  
ROU assets obtained in exchange for new finance lease liabilities 3,687 2,613  
ROU assets obtained in exchange for new operating lease liabilities $ 16,341 $ 12,442  
Weighted Average Remaining Lease Term [Abstract]      
Weighted-average remaining lease term - finance leases (years) 3 years 10 months 6 days 4 years 4 months 20 days  
Weighted-average remaining lease term - operating leases (years) 3 years 9 months 25 days 3 years 6 months 7 days  
Weighted Average Discount Rate [Abstract]      
Weighted-discount rate - finance leases 2.70% 2.89%  
Weighted-discount rate - operating leases 2.28% 2.82%