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Financial Instruments - Additional Information (Details) - USD ($)
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Liabilities measured at fair value $ 0   $ 0
Transfers of assets between Level 1 and Level 2 0 $ 0  
Transfers of assets between Level 2 and Level 1 0 0  
Transfers of liabilities between Level 1 and Level 2 0 0  
Transfers of liabilities between Level 2 to Level 1 0 0  
Transfer out of Level 3 measurement 0 0  
Transfer in to Level 3 measurement 0 $ 0  
Fair Value Measurements, Non-recurring Basis      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Liabilities measured at fair value 0   0
Assets measured at fair value $ 0   $ 0