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Schedule of Maturity of Lease Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Sep. 30, 2020
Finance Leases:    
2021 $ 2,247  
2022 1,790  
2023 638  
2024 71  
Total lease payments 4,746  
Less: imputed interest (184)  
Total present value of lease payments 4,562  
Current 2,132 $ 2,437
Non-current 2,430 $ 2,900
Total finance lease liabilities 4,562  
Operating Leases:    
2021 9,858  
2022 8,630  
2023 7,887  
2024 6,630  
2025 6,610  
Thereafter 21,300  
Total lease payments 60,915  
Less: imputed interest (18,905)  
Total present value of lease payments 42,010  
Current 5,845  
Non-current 36,165  
Total operating lease obligations $ 42,010