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Investments- Fair Value of the Company's Investments by Type (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Marketable Securities [Line Items]    
Amortized Cost $ 215,125 $ 9,989
Accrued Interest 331 65
Gross Unrealized Gains 5 0
Gross Unrealized Losses (1,170) (13)
Estimated Fair Value 214,291 10,041
Obligations of U.S. Government and its agencies    
Marketable Securities [Line Items]    
Amortized Cost 205,133 4,043
Accrued Interest 284 17
Gross Unrealized Gains 5 0
Gross Unrealized Losses (1,074) (7)
Estimated Fair Value 204,348 4,053
Corporate debt securities    
Marketable Securities [Line Items]    
Amortized Cost 7,337 4,294
Accrued Interest 37 40
Gross Unrealized Gains 0 0
Gross Unrealized Losses (64) (5)
Estimated Fair Value 7,310 4,329
Certificates of deposit    
Marketable Securities [Line Items]    
Amortized Cost 2,655 1,652
Accrued Interest 10 8
Gross Unrealized Gains 0 0
Gross Unrealized Losses (32) (1)
Estimated Fair Value $ 2,633 $ 1,659