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Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares
Sep. 30, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]    
Stock Options Outstanding 1,360 1,360
Stock Options Exercisable 775  
Weighted Average Exercise Price Outstanding $ 106.00 $ 106.00
Weighted Average Exercise Price Exercisable $ 106.00