March 31, 2023

December 31, 2022

Amortized 
Cost

Unrealized 
Gain/(Loss)

Fair 
Value

Amortized 
Cost

Unrealized 
Loss

Fair 
Value

Contractual maturity of 0 to 1 years:

Guaranteed investment certificates

$

15,161

$

—

$

15,161

$

14,953

$

—

$

14,953

U.S. treasuries

106,527

(721

)

105,806

78,880

(837

)

78,043

U.S. government securities

26,498

60

26,558

5,793

(20

)

5,773

Commercial paper

131,002

—

131,002

150,560

—

150,560

Corporate debt securities

8,866

(46

)

8,820

8,942

(68

)

8,874

Contractual maturity of 1 to 3 years:

U.S. treasuries

67,140

(327

)

66,813

60,354

(958

)

59,396

U.S. government securities

38,307

141

38,448

26,741

(35

)

26,706

Corporate debt securities

54,941

63

55,004

42,672

(92

)

42,580

Total

$

448,442

$

(830

)

$

447,612

$

388,895

$

(2,010

)

$

386,885