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Investment Securities (Tables) | 12 Months Ended
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Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-sale Investment Securities | Our available-for-sale investment securities were as follows:
| Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair value
| (In thousands)
December 31, 2025 |
Agency bond securities | $ | 179,227 |  |  | $ | — |  |  | $ | (22,252) |  |  | $ | 156,975 |
Agency mortgage-backed securities | 2,145,925 |  |  | 1,392 |  |  | (212,399) |  |  | 1,934,918 |
Municipal bonds | 28,137 |  |  | — |  |  | (5,581) |  |  | 22,556 |
Asset-backed securities | 354,510 |  |  | 86 |  |  | (1,202) |  |  | 353,394 |
Total investment securities | $ | 2,707,799 |  |  | $ | 1,478 |  |  | $ | (241,434) |  |  | $ | 2,467,843 |
December 31, 2024 |  |  |  |  |  |  |
Corporate bonds | $ | 10,000 |  |  | $ | — |  |  | $ | (110) |  |  | $ | 9,890 |
Agency bond securities | 240,628 |  |  | — |  |  | (38,132) |  |  | 202,496 |
Agency mortgage-backed securities | 2,121,037 |  |  | 3 |  |  | (323,467) |  |  | 1,797,573 |
Municipal bonds | 29,116 |  |  | — |  |  | (6,273) |  |  | 22,843 |
Total investment securities | $ | 2,400,781 |  |  | $ | 3 |  |  | $ | (367,982) |  |  | $ | 2,032,802 |
Schedule of Available-for-sale Securities, Unrealized Loss Position | As of December 31, 2025 and 2024, the gross unrealized losses and fair values of available-for-sale investment securities that were in unrealized loss positions were as follows:
| Less than 12 months |  | 12 months or more |  | Total fair value |  | Total unrealized loss
| Fair value |  | Unrealized loss |  | Fair value |  | Unrealized loss |  |
| (In thousands)
December 31, 2025 |
Agency bond securities | $ | — |  |  | $ | — |  |  | $ | 156,975 |  |  | $ | (22,252) |  |  | $ | 156,975 |  |  | $ | (22,252) |
Agency mortgage-backed securities | 504,676 |  |  | (1,764) |  |  | 1,049,422 |  |  | (210,635) |  |  | 1,554,098 |  |  | (212,399) |
Municipal bonds | — |  |  | — |  |  | 22,556 |  |  | (5,581) |  |  | 22,556 |  |  | (5,581) |
Asset-backed securities | 321,811 |  |  | (1,202) |  |  | — |  |  | — |  |  | 321,811 |  |  | (1,202) |
Total investment securities | $ | 826,487 |  |  | $ | (2,966) |  |  | $ | 1,228,953 |  |  | $ | (238,468) |  |  | $ | 2,055,440 |  |  | $ | (241,434) |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
Corporate bonds | $ | — |  |  | $ | — |  |  | $ | 9,890 |  |  | $ | (110) |  |  | $ | 9,890 |  |  | $ | (110) |
Agency bond securities | — |  |  | — |  |  | 202,496 |  |  | (38,132) |  |  | 202,496 |  |  | (38,132) |
Agency mortgage-backed securities | 15,311 |  |  | (937) |  |  | 1,781,301 |  |  | (322,530) |  |  | 1,796,612 |  |  | (323,467) |
Municipal bonds | — |  |  | — |  |  | 22,843 |  |  | (6,273) |  |  | 22,843 |  |  | (6,273) |
Total investment securities | $ | 15,311 |  |  | $ | (937) |  |  | $ | 2,016,530 |  |  | $ | (367,045) |  |  | $ | 2,031,841 |  |  | $ | (367,982) |
Schedule of Maturity Dates for Available-for-Sale Investment Securities | As of December 31, 2025, the contractual maturities of our available-for-sale investment securities were as follows:
| Amortized cost |  | Fair value
| (In thousands)
Due after one year through five years | $ | 139,227 |  |  | $ | 125,038 |
Due after five years through ten years | 40,000 |  |  | 31,937 |
Due after ten years | 28,137 |  |  | 22,556 |
Mortgage and asset-backed securities | 2,500,435 |  |  | 2,288,312 |
Total investment securities | $ | 2,707,799 |  |  | $ | 2,467,843 |

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