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Debt - Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Riverfront permanent loan $ 89,964 $ 88,925
Long-term debt, current and non-current 89,964 88,925
Less portion due within one year 0 0
Total long term debt $ 89,964 $ 88,925