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U.S. Government Securities (Tables)
12 Months Ended
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]  
Carrying Value and Fair Value of Securities The following table summarizes the carrying value and fair value of the Company’s securities by the contractual maturity date as of December 31, 2021:
Carrying ValueFair Value
Due in 1 year$129,321 $130,910 
TOTAL$129,321 $130,910