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v3.23.2

Investment Securities Available for Sale (Schedule of Amortized Cost and Estimated Fair Value by Contractual Maturity of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Amortized Cost |  |
Within one year, amortized cost | $ 25,140 |
1 to 5 years, amortized cost | 1,206,162 |
5 to 10 years, amortized cost | 353,060 |
More than 10 years, amortized cost | 9,589,511 |
Amortized Cost | 11,173,873 | $ 11,273,327
Fair Value |  |
Within one year, fair value | 25,139 |
1 to 5 years, fair value | 1,128,740 |
5 to 10 years, fair value | 304,535 |
More than 10 years, fair value | 8,162,761 |
Total, fair value | 9,621,175 | 9,678,103
U.S. Treasury securities |  |
Amortized Cost |  |
Within one year, amortized cost | 24,834 |
1 to 5 years, amortized cost | 442,928 |
5 to 10 years, amortized cost | 49,864 |
More than 10 years, amortized cost | 0 |
Amortized Cost | 517,626 | 515,953
Fair Value |  |
Within one year, fair value | 24,834 |
1 to 5 years, fair value | 408,618 |
5 to 10 years, fair value | 40,438 |
More than 10 years, fair value | 0 |
Total, fair value | 473,890 | 471,813
U.S. Government agency securities |  |
Amortized Cost |  |
Within one year, amortized cost | 258 |
1 to 5 years, amortized cost | 52,139 |
5 to 10 years, amortized cost | 0 |
More than 10 years, amortized cost | 0 |
Amortized Cost | 52,397 | 52,411
Fair Value |  |
Within one year, fair value | 258 |
1 to 5 years, fair value | 48,345 |
5 to 10 years, fair value | 0 |
More than 10 years, fair value | 0 |
Total, fair value | 48,603 | 48,798
Mortgage-backed securities issued by U.S. Government agencies |  |
Amortized Cost |  |
Within one year, amortized cost | 48 |
1 to 5 years, amortized cost | 324 |
5 to 10 years, amortized cost | 4 |
More than 10 years, amortized cost | 927,655 |
Amortized Cost | 928,031 | 904,593
Fair Value |  |
Within one year, fair value | 47 |
1 to 5 years, fair value | 311 |
5 to 10 years, fair value | 4 |
More than 10 years, fair value | 816,988 |
Total, fair value | 817,350 | 792,749
Mortgage-backed securities issued by U.S. Government sponsored enterprises |  |
Amortized Cost |  |
Within one year, amortized cost | 0 |
1 to 5 years, amortized cost | 19,900 |
5 to 10 years, amortized cost | 82,822 |
More than 10 years, amortized cost | 7,876,409 |
Amortized Cost | 7,979,131 | 8,144,374
Fair Value |  |
Within one year, fair value | 0 |
1 to 5 years, fair value | 18,789 |
5 to 10 years, fair value | 76,538 |
More than 10 years, fair value | 6,682,066 |
Total, fair value | 6,777,393 | 6,895,070
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises |  |
Amortized Cost |  |
Within one year, amortized cost | 0 |
1 to 5 years, amortized cost | 69 |
5 to 10 years, amortized cost | 11,416 |
More than 10 years, amortized cost | 721,453 |
Amortized Cost | 732,938 | 769,498
Fair Value |  |
Within one year, fair value | 0 |
1 to 5 years, fair value | 66 |
5 to 10 years, fair value | 10,936 |
More than 10 years, fair value | 604,949 |
Total, fair value | 615,951 | 655,127
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises |  |
Amortized Cost |  |
Within one year, amortized cost | 0 |
1 to 5 years, amortized cost | 681,844 |
5 to 10 years, amortized cost | 208,954 |
More than 10 years, amortized cost | 63,994 |
Amortized Cost | 954,792 | 877,590
Fair Value |  |
Within one year, fair value | 0 |
1 to 5 years, fair value | 643,973 |
5 to 10 years, fair value | 176,619 |
More than 10 years, fair value | 58,758 |
Total, fair value | 879,350 | 805,945
Corporate debt securities and other debt securities |  |
Amortized Cost |  |
Within one year, amortized cost | 0 |
1 to 5 years, amortized cost | 8,958 |
5 to 10 years, amortized cost | 0 |
More than 10 years, amortized cost | 0 |
Amortized Cost | 8,958 | 8,908
Fair Value |  |
Within one year, fair value | 0 |
1 to 5 years, fair value | 8,638 |
5 to 10 years, fair value | 0 |
More than 10 years, fair value | 0 |
Total, fair value | $ 8,638 | $ 8,601

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