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Leases - Supplemental Balance Sheet Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] us-gaap:OtherAssets us-gaap:OtherAssets
Operating Lease, Liability, Statement of Financial Position [Extensible List] us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Operating lease right-of-use assets $ 3,784 $ 4,084
Operating lease right-of-use liabilities $ 3,873 $ 3,835
Weighted average remaining lease term 4 years 2 months 12 days 5 years 2 months 1 day
Weighted average discount rate 3.10% 4.50%