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Income Taxes - Reconciliation of Actual Income Tax Expense to Statutory (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
State income taxes $ 223 $ 967 $ 534
Total $ 223 $ 967 $ 534