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Fair Value of Financial Instruments - Additional Information (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Fair value assets transfers between level 1 to level 2 $ 0   $ 0
Fair value liabilities transfers between level 1 to level 2 0   $ 0
Fair Value, Non-recurring      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Assets measured at fair value 0 $ 0  
Liabilities measured at fair value $ 0 $ 0