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Investments (Tables)
 3 Months Ended
Mar. 31, 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 March 31, 2023 and December 31, 2022, respectively.
Amortized CostGross UnrealizedFair ValueNet Carrying Value
GainsLosses
As of March 31, 2023(In Thousands)
Investments
Commercial paper$45,508 $— $(80)$45,428 $45,508 
Total investments$45,508 $— $(80)$45,428 $45,508 
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 March 31, 2023 and December 31, 2022, by contractual maturity, are shown below.

As of March 31, 2023Amortized CostFair Value
(In Thousands)
Within one year$45,508 $45,428 
After one year through five years— — 
After 5 years through 10 years— — 
After 10 years— — 
Total investments$45,508 $45,428 
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 March 31, 2023(Dollars In Thousands)
Investments
Commercial paper10 $45,428 $(80)10 $45,428 $(80)
Total10 $45,428 $(80)10 $45,428 $(80)
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)