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Investments (Tables)
 6 Months Ended
Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Debt Securities, Held-to-maturity The Company’s commercial paper investments are classified as held-to-maturity on its balance sheets as of June 30, 2023 and December 31, 2022, respectively.
Amortized CostGross UnrealizedFair ValueNet Carrying Value
GainsLosses
As of June 30, 2023(In Thousands)
Investments
Commercial paper$30,933 $— $(46)$30,887 $30,933 
Total investments$30,933 $— $(46)$30,887 $30,933 
Amortized CostGross UnrealizedFair ValueNet Carrying Value
GainsLosses
As of December 31, 2022(In Thousands)
Investments
Commercial Paper$58,733 $— $(144)$58,589 $58,733 
Total investments$58,733 $— $(144)$58,589 $58,733 
The amortized cost and fair value of held-to-maturity securities as of June 30, 2023 and December 31, 2022, by contractual maturity, are shown below.
As of June 30, 2023Amortized CostFair Value
(In Thousands)
Within one year$30,933 $30,887 
After one year through five years— — 
After 5 years through 10 years— — 
After 10 years— — 
Total investments$30,933 $30,887 
As of December 31, 2022Amortized CostFair Value
(In Thousands)
Within one year$58,733 $58,589 
After one year through five years— — 
After 5 years through 10 years— — 
After 10 years— — 
Total investments$58,733 $58,589 
Unrealized Gain (Loss) on Investments For those securities in an unrealized loss position, the length of time the securities were in such a position is as follows:
Less than 12 MonthsTotal
# of SecuritiesFair ValueUnrealized Losses# of SecuritiesFair ValueUnrealized Losses
As of June 30, 2023(Dollars In Thousands)
Investments
Commercial paper7 $30,887 $(46)7 $30,887 $(46)
Total7 $30,887 $(46)7 $30,887 $(46)
Less than 12 MonthsTotal
# of SecuritiesFair ValueUnrealized Losses# of SecuritiesFair ValueUnrealized Losses
As of December 31, 2022(Dollars In Thousands)
Investments
Commercial paper11 $58,589 $(144)11 $58,589 $(144)
Total11 $58,589 $(144)11 $58,589 $(144)