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Equity - Reverse Stock Split (Details)
Dec. 17, 2020
$ / shares
Sep. 30, 2021
$ / shares
Dec. 31, 2020
$ / shares
Class of Stock [Line Items]      
Common stock, par value (in dollars per share)   $ 0.01 $ 0.01
Common Stock [Member]      
Class of Stock [Line Items]      
Stock split, conversion ratio 0.2    
Common stock, par value (in dollars per share) $ 0.01    
Cash paid, average closing price, period 3 days