Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Detail - Amortized Cost, Unrealized Gains and Estimated Fair Value (Details)

v3.22.1
Balance Sheet Detail - Amortized Cost, Unrealized Gains and Estimated Fair Value (Details)
$ in Thousands
Mar. 31, 2022
USD ($)
Debt Securities, Available-for-sale [Line Items]  
Amortized cost $ 966,091
Unrealized losses (1,675)
Fair value 964,416
U.S. government securities  
Debt Securities, Available-for-sale [Line Items]  
Amortized cost 966,091
Unrealized losses (1,675)
Fair value $ 964,416