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Leases - Maturities of operating lease liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Leases    
2022, excluding the quarter ended March 31, 2022 $ 2,924  
2023 3,013  
2024 2,102  
2025 1,379  
2026 1,025  
Thereafter 724  
Total lease payments 11,167  
Less imputed interest (829)  
Present value of lease liabilities $ 10,338 $ 11,113