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v3.23.3

Debt Securities Available for Sale - Weighted average yield and contractual maturities of debt securities AFS (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 | Oct. 15, 2022
--- | --- | --- | ---
Amortized cost |  |  |
Amortized Cost | $ 18,993,381 | $ 19,562,549 |
Gross unrealized gains |  |  |
Gross unrealized gains | 621 | 1,516 |
Gross unrealized loss |  |  |
Gross unrealized losses | 1,864,144 | 1,759,691 |
Fair Value |  |  |
Debt securities available-for-sale | $ 17,129,858 | $ 17,804,374 |
Weighted average yield |  |  |
Weighted Average Yield | 2.30% | 1.75% |
US Treasury Securities |  |  |
Amortized cost |  |  |
Amortized cost - Within 1 year | $ 7,041,817 | $ 4,576,127 |
Amortized cost - After 1 to 5 years | 4,364,065 | 6,793,739 |
Amortized cost - After 5 to 10 years | 307,852 | 308,854 |
Amortized Cost | 11,713,734 | 11,678,720 |
Gross unrealized gains |  |  |
Gross unrealized gain - Within 1 year | 421 | 506 |
Gross unrealized gain - After 1 to 5 years | 0 | 0 |
Gross unrealized gain - After 5 to 10 years | 0 | 0 |
Gross unrealized gains | 421 | 506 |
Gross unrealized loss |  |  |
Gross unrealized losses - Within 1 year | 67,663 | 47,156 |
Gross unrealized losses - After 1 to 5 years | 271,553 | 410,858 |
Gross unrealized losses - After 5 to 10 years | 45,258 | 40,264 |
Gross unrealized losses | 384,474 | 498,278 | $ 873,000
Fair Value |  |  |
Fair value - Within 1 year | 6,974,575 | 4,529,477 |
Fair value - After 1 to 5 years | 4,092,512 | 6,382,881 |
Fair value - After 5 to 10 years | 262,594 | 268,590 |
Debt securities available-for-sale | $ 11,329,681 | $ 11,180,948 |
Weighted average yield |  |  |
Weighted average yield - Within 1 year | 3.51% | 2.42% |
Weighted average yield - After 1 to 5 years | 1.36% | 1.35% |
Weighted average yield - After 5 to 10 years | 1.63% | 1.63% |
Weighted Average Yield | 2.65% | 1.78% |
Collateralized Mortgage Obligations - Federal agencies |  |  |
Amortized cost |  |  |
Amortized cost - After 1 to 5 years | $ 19,312 | $ 3,914 |
Amortized cost - After 5 to 10 years | 22,371 | 47,979 |
Amortized cost - After 10 years | 112,566 | 127,639 |
Amortized Cost | 154,249 | 179,532 |
Gross unrealized gains |  |  |
Gross unrealized gain - After 1 to 5 years | 0 | 0 |
Gross unrealized gain - After 5 to 10 years | 0 | 0 |
Gross unrealized gain - After 10 years | 7 | 24 |
Gross unrealized gains | 7 | 24 |
Gross unrealized loss |  |  |
Gross unrealized losses - After 1 to 5 years | 1,163 | 213 |
Gross unrealized losses - After 5 to 10 years | 1,857 | 3,428 |
Gross unrealized losses - After 10 years | 13,222 | 10,719 |
Gross unrealized losses | 16,242 | 14,360 |
Fair Value |  |  |
Fair value - After 1 to 5 years | 18,149 | 3,701 |
Fair value - After 5 to 10 years | 20,514 | 44,551 |
Fair value - After 10 years | 99,351 | 116,944 |
Debt securities available-for-sale | $ 138,014 | $ 165,196 |
Weighted average yield |  |  |
Weighted average yield - After 1 to 5 years | 1.53% | 1.77% |
Weighted average yield - After 5 to 10 years | 2.26% | 1.73% |
Weighted average yield - After 10 years | 2.54% | 2.53% |
Weighted Average Yield | 2.37% | 2.30% |
Mortgage Backed Securities |  |  |
Amortized cost |  |  |
Amortized cost - Within 1 year | $ 1,302 |  |
Amortized cost - After 1 to 5 years | 79,987 | $ 74,328 |
Amortized cost - After 5 to 10 years | 778,578 | 866,757 |
Amortized cost - After 10 years | 6,264,509 | 6,762,150 |
Amortized Cost | 7,124,376 | 7,703,235 |
Gross unrealized gains |  |  |
Gross unrealized gain - Within 1 year | 0 |  |
Gross unrealized gain - After 1 to 5 years | 3 | 11 |
Gross unrealized gain - After 5 to 10 years | 13 | 43 |
Gross unrealized gain - After 10 years | 177 | 932 |
Gross unrealized gains | 193 | 986 |
Gross unrealized loss |  |  |
Gross unrealized losses - Within 1 year | 48 |  |
Gross unrealized losses - After 1 to 5 years | 4,760 | 3,428 |
Gross unrealized losses - After 5 to 10 years | 71,731 | 58,997 |
Gross unrealized losses - After 10 years | 1,386,889 | 1,184,626 |
Gross unrealized losses | 1,463,428 | 1,247,051 |
Fair Value |  |  |
Fair value - Within 1 year | 1,254 |  |
Fair value - After 1 to 5 years | 75,230 | 70,911 |
Fair value - After 5 to 10 years | 706,860 | 807,803 |
Fair value - After 10 years | 4,877,797 | 5,578,456 |
Debt securities available-for-sale | $ 5,661,141 | $ 6,457,170 |
Weighted average yield |  |  |
Weighted average yield - Within 1 year | 3.56% |  |
Weighted average yield - After 1 to 5 years | 2.37% | 2.33% |
Weighted average yield - After 5 to 10 years | 2.22% | 2.16% |
Weighted average yield - After 10 years | 1.65% | 1.61% |
Weighted Average Yield | 1.72% | 1.68% |
Other |  |  |
Amortized cost |  |  |
Amortized cost - Within 1 year | $ 1,022 |  |
Amortized cost - After 1 to 5 years |  | $ 1,062 |
Amortized Cost | 1,022 | 1,062 |
Gross unrealized gains |  |  |
Gross unrealized gain - Within 1 year | 0 |  |
Gross unrealized gain - After 1 to 5 years |  | 0 |
Gross unrealized gains | 0 | 0 |
Gross unrealized loss |  |  |
Gross unrealized losses - Within 1 year | 0 |  |
Gross unrealized losses - After 1 to 5 years |  | 2 |
Gross unrealized losses | 0 | 2 |
Fair Value |  |  |
Fair value - Within 1 year | 1,022 |  |
Fair value - After 1 to 5 years |  | 1,060 |
Debt securities available-for-sale | $ 1,022 | $ 1,060 |
Weighted average yield |  |  |
Weighted average yield - Within 1 year | 3.99% |  |
Weighted average yield - After 1 to 5 years |  | 3.98% |
Weighted Average Yield | 3.99% | 3.98% |

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