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Leases - Future Minimum Rental Income under Operating Leases Including Subleases (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Leases [Abstract]  
2021 $ 4,994
2022 4,019
2023 2,761
2024 1,361
2025 699
Thereafter 4,333
Total $ 18,167