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Leases - Future minimum lease payments under noncancellable leases (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Years ending December 31:  
2021 $ 2,353
2022 2,475
2023 1,342
2024 877
2025 364
2026 364
Thereafter 91
Total operating lease payments 7,866
Less imputed interest (739)
Total operating lease liabilities $ 7,127