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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Accounts Receivable (net of allowance for doubtful accounts) $ 712 $ 967 $ 799
Long term debt (net of deferred financing costs) $ 10,319 $ 26,345 $ 11,102
Common stock, par value $ 0.001 $ 0.001  
Common stock, shares authorized 1,000,000,000 1,000,000,000  
Common stock, shares issued 152,870,750 130,000,000  
Common stock, shares outstanding 152,870,750 130,000,000  
Class A Units [Member]      
Common stock, par value     $ 0
Common stock, shares authorized     140,000,000
Common stock, shares issued     138,714,853
Common stock, shares outstanding     138,714,853
Class B Units [Member]      
Common stock, par value     $ 0
Common stock, shares authorized     7,500,000
Common stock, shares issued     1,700,051
Common stock, shares outstanding     1,700,051
Class C Units [Member]      
Common stock, par value     $ 0
Common stock, shares authorized     17,500,000
Common stock, shares issued     9,271,556
Common stock, shares outstanding     9,271,556