v3.24.0.1
Short-term Investments
 12 Months Ended
Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Short-term Investments
6.
Short-term Investments

Short-term investments classified as available-for-sale consisted of the following as of:

 

 

December 31, 2023

 

(in thousands)

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Value

 

Short-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

US Treasuries

 

$

62,486

 

 

$

20

 

 

$

(45

)

 

$

62,461

 

Corporate Bonds

 

 

2,314

 

 

 

10

 

 

 

—

 

 

 

2,324

 

Commercial Paper

 

 

94,269

 

 

 

85

 

 

 

(18

)

 

 

94,336

 

Certificates of Deposit

 

 

17,954

 

 

 

19

 

 

 

(2

)

 

 

17,971

 

Total short-term investments

 

$

177,023

 

 

$

134

 

 

$

(65

)

 

$

177,092

 

 

 

 

December 31, 2022

 

(in thousands)

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Value

 

Short-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

US treasuries

 

$

59,849

 

 

$

3

 

 

$

(129

)

 

$

59,723

 

Agency bonds

 

 

6,450

 

 

 

4

 

 

 

(2

)

 

 

6,452

 

Commercial paper

 

 

95,831

 

 

 

29

 

 

 

(123

)

 

 

95,737

 

Certificates of deposit

 

 

23,034

 

 

 

17

 

 

 

(24

)

 

 

23,027

 

Total short-term investments

 

$

185,164

 

 

$

53

 

 

$

(278

)

 

$

184,939

 

 

All short-term investments had stated maturity dates of less than one year. Included in the amortized cost as of December 31, 2023 and 2022 is accretion of $2.8 million and $1.2 million, respectively. Interest accretion on short-term investments was $8.2 million and $1.1 million during the years ended December 31, 2023 and 2022, respectively.