Investment Securities (Tables)
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6 Months Ended |
Jun. 30, 2026 |
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| Investments, Debt and Equity Securities [Abstract] |
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| Schedule of Available-For-Sale Investment Securities Held by the Company |
We report our available-for-sale investment securities at their estimated fair values. The following is a summary of our available-for-sale investment securities as of June 30, 2026 and December 31, 2025: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of June 30, 2026 | | As of December 31, 2025 | | Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Fair
Market
Value | | Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Fair
Market
Value | | Available-for-sale investment securities: | | | | | | | | | | | | | | | | | U.S. government obligations | $ | 576,177 | | | $ | 96 | | | $ | (1,809) | | | $ | 574,464 | | | $ | 369,652 | | | $ | 860 | | | $ | — | | | $ | 370,512 | | | Agency obligations | 65,499 | | | — | | | (320) | | | 65,179 | | | 43,997 | | | 1 | | | (29) | | | 43,969 | | | Corporate debt securities | 511,607 | | | 129 | | | (1,104) | | | 510,632 | | | 510,668 | | | 1,215 | | | (11) | | | 511,872 | | | Total | $ | 1,153,283 | | | $ | 225 | | | $ | (3,233) | | | $ | 1,150,275 | | | $ | 924,317 | | | $ | 2,076 | | | $ | (40) | | | $ | 926,353 | |
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| Schedule of Available-For-Sale Investment Securities By Contractual Maturity |
As of June 30, 2026 and December 31, 2025, available-for-sale investment securities by contractual maturity were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | As of June 30, 2026 | | As of December 31, 2025 | | Amortized
Cost | | Fair
Market
Value | | Amortized
Cost | | Fair
Market
Value | | Available-for-sale investment securities: | | | | | | | | | Due in one year or less | $ | 752,172 | | | $ | 751,396 | | | $ | 712,675 | | | $ | 714,118 | | | Due after one year through five years | 401,111 | | | 398,879 | | | 211,642 | | | 212,235 | | | Total | $ | 1,153,283 | | | $ | 1,150,275 | | | $ | 924,317 | | | $ | 926,353 | |
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| Schedule of Available-For-Sale Investment Securities by Length of Time |
The following is a summary of the available-for-sale investment securities by length of time in a net loss position as of June 30, 2026 and December 31, 2025: | | | | | | | | | | | | | | | | | | | | | | | | | As of June 30, 2026 | | As of December 31, 2025 | | Less Than 12 Months | | Less Than 12 Months | | Fair
Market
Value | | Gross
Unrealized
Losses | | Fair
Market
Value | | Gross
Unrealized
Losses | | Available-for-sale investment securities: | | | | | | | | | U.S. government obligations | $ | 485,926 | | | $ | (1,809) | | | $ | — | | | $ | — | | | Agency obligations | 65,179 | | | (320) | | | 27,471 | | | (29) | | | Corporate debt securities | 342,214 | | | (1,104) | | | 38,596 | | | (11) | | | Total | $ | 893,319 | | | $ | (3,233) | | | $ | 66,067 | | | $ | (40) | |
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