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Investments - Schedule of Gross Unrealized Holding Losses and Fair Value for Investments in Unrealized Loss Position (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Schedule of Available-for-Sale Securities [Line Items]  
Less than 12 months, Fair value $ 35,206
Less than 12 months, Unrealized loss (13)
Corporate Bonds  
Schedule of Available-for-Sale Securities [Line Items]  
Less than 12 months, Fair value 5,010
Less than 12 months, Unrealized loss (3)
U.S. Government Debt and Agency Securities  
Schedule of Available-for-Sale Securities [Line Items]  
Less than 12 months, Fair value 30,196
Less than 12 months, Unrealized loss $ (10)