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Investments - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]          
Percentage of Equity Method Investment Sold   100.00%      
Investment balance in TWH       $ 13,400 $ 13,400
Proceeds from Sale of Equity Method Investments     $ 7,000 $ 0  
Equity Method Investment, Realized Gain (Loss) on Disposal   $ 500      
Forecast [Member]          
Schedule of Equity Method Investments [Line Items]          
Proceeds from Sale of Equity Method Investments $ 14,000        
Cash and Cash Equivalents [Member]          
Schedule of Equity Method Investments [Line Items]          
Proceeds from Sale of Equity Method Investments   7,000      
Notes Receivable [Member]          
Schedule of Equity Method Investments [Line Items]          
Proceeds from Sale of Equity Method Investments   $ 7,000