| Summary of Available-for-sale Marketable Securities |
The following table summarizes the Company’s available-for-sale marketable securities:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2023 |
|
|
|
Amortized
Cost |
|
|
Gross Unrealized
Gains |
|
|
Gross Unrealized
Losses |
|
|
Estimated Fair
Value |
|
|
|
(In thousands) |
|
Marketable securities: |
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury and other government-backed securities |
|
$ |
382,260 |
|
|
$ |
302 |
|
|
$ |
(254 |
) |
|
$ |
382,308 |
|
Financial institution debt securities |
|
|
246,270 |
|
|
|
92 |
|
|
|
(243 |
) |
|
|
246,119 |
|
Corporate debt securities |
|
|
97,490 |
|
|
|
53 |
|
|
|
(135 |
) |
|
|
97,408 |
|
Other asset-backed securities |
|
|
59,453 |
|
|
|
75 |
|
|
|
(24 |
) |
|
|
59,504 |
|
Total |
|
$ |
785,473 |
|
|
$ |
522 |
|
|
$ |
(656 |
) |
|
$ |
785,339 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2022 |
|
|
|
Amortized
Cost |
|
|
Gross Unrealized
Gains |
|
|
Gross Unrealized
Losses |
|
|
Estimated Fair
Value |
|
|
|
(In thousands) |
|
Marketable securities: |
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury and other government-backed securities |
|
$ |
244,562 |
|
|
$ |
62 |
|
|
$ |
(1,938 |
) |
|
$ |
242,686 |
|
Financial institution debt securities |
|
|
380,891 |
|
|
|
- |
|
|
|
(1,030 |
) |
|
|
379,861 |
|
Corporate debt securities |
|
|
102,059 |
|
|
|
- |
|
|
|
(509 |
) |
|
|
101,550 |
|
Other asset-backed securities |
|
|
14,703 |
|
|
|
- |
|
|
|
(346 |
) |
|
|
14,357 |
|
Total |
|
$ |
742,215 |
|
|
$ |
62 |
|
|
$ |
(3,823 |
) |
|
$ |
738,454 |
|
|