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Marketable Securities
12 Months Ended
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities Marketable Securities
The Company had no marketable securities classified as available-for-sale as of December 31, 2021 as all of the Company's investments were in securities classified as cash and cash equivalents. Marketable securities classified as available-for-sale as of December 31, 2020 were comprised of (in thousands):
December 31, 2020
Amortized CostGross Unrealized
Gains
Gross Unrealized LossesFair Value
Treasury securities$10,038 $— $(2)$10,036 
Corporate debt securities127,003 13 (3)127,013 
Agency securities20,599 — 20,600 
Total$157,640 $14 $(5)$157,649