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Securities - Scheduled Contractual Maturities of AFS (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Amortized cost |  |
Within One Year | $ 128,731 |
After One Year through Five Years | 899,362 |
After Five Years through Ten Years | 848,386 |
After Ten Years | 5,015,043 |
Amortized Cost | 6,891,522 | $ 10,087,179
Fair value |  |
Within One Year | 128,401 |
After One Year through Five Years | 850,198 |
After Five Years through Ten Years | 785,477 |
After Ten Years | 4,491,428 |
Total | $ 6,255,504 | 9,965,353
Weighted Average Yield |  |
Within One Year | 2.14% |
After One Year through Five Years | 1.95% |
After Five Years through Ten Years | 2.39% |
After Ten Years | 2.15% |
Total | 2.15% |
U.S. Treasury securities |  |
Amortized cost |  |
Within One Year | $ 0 |
After One Year through Five Years | 576,626 |
After Five Years through Ten Years | 99,694 |
After Ten Years | 0 |
Amortized Cost | 676,320 | 1,049,238
Fair value |  |
Within One Year | 0 |
After One Year through Five Years | 536,698 |
After Five Years through Ten Years | 87,988 |
After Ten Years | 0 |
Total | $ 624,686 | 1,032,681
Weighted Average Yield |  |
Within One Year | 0.00% |
After One Year through Five Years | 1.28% |
After Five Years through Ten Years | 0.74% |
After Ten Years | 0.00% |
Total | 1.20% |
U.S. government-sponsored enterprises debt securities |  |
Amortized cost |  |
Within One Year | $ 0 |
After One Year through Five Years | 29,193 |
After Five Years through Ten Years | 125,001 |
After Ten Years | 170,269 |
Amortized Cost | 324,463 | 1,333,984
Fair value |  |
Within One Year | 0 |
After One Year through Five Years | 27,700 |
After Five Years through Ten Years | 110,199 |
After Ten Years | 147,346 |
Total | $ 285,245 | 1,301,971
Weighted Average Yield |  |
Within One Year | 0.00% |
After One Year through Five Years | 1.62% |
After Five Years through Ten Years | 1.16% |
After Ten Years | 2.09% |
Total | 1.69% |
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities |  |
Amortized cost |  |
Within One Year | $ 0 |
After One Year through Five Years | 13,289 |
After Five Years through Ten Years | 192,287 |
After Ten Years | 2,505,898 |
Amortized Cost | 2,711,474 |
Fair value |  |
Within One Year | 0 |
After One Year through Five Years | 13,205 |
After Five Years through Ten Years | 182,832 |
After Ten Years | 2,278,035 |
Total | $ 2,474,072 |
Weighted Average Yield |  |
Within One Year | 0.00% |
After One Year through Five Years | 3.11% |
After Five Years through Ten Years | 2.69% |
After Ten Years | 2.11% |
Total | 2.15% |
Municipal securities |  |
Amortized cost |  |
Within One Year | $ 0 |
After One Year through Five Years | 39,712 |
After Five Years through Ten Years | 6,498 |
After Ten Years | 260,209 |
Amortized Cost | 306,419 | 519,381
Fair value |  |
Within One Year | 0 |
After One Year through Five Years | 37,800 |
After Five Years through Ten Years | 5,758 |
After Ten Years | 223,175 |
Total | $ 266,733 | 523,158
Weighted Average Yield |  |
Within One Year | 0.00% |
After One Year through Five Years | 2.47% |
After Five Years through Ten Years | 1.79% |
After Ten Years | 2.23% |
Total | 2.25% |
Non-agency mortgage-backed securities |  |
Amortized cost |  |
Within One Year | $ 10,019 |
After One Year through Five Years | 196,136 |
After Five Years through Ten Years | 40,404 |
After Ten Years | 1,012,653 |
Amortized Cost | 1,259,212 |
Fair value |  |
Within One Year | 9,894 |
After One Year through Five Years | 189,963 |
After Five Years through Ten Years | 39,224 |
After Ten Years | 899,676 |
Total | $ 1,138,757 |
Weighted Average Yield |  |
Within One Year | 4.47% |
After One Year through Five Years | 3.56% |
After Five Years through Ten Years | 1.19% |
After Ten Years | 2.23% |
Total | 2.42% |
Corporate debt securities |  |
Amortized cost |  |
Within One Year | $ 10,000 |
After One Year through Five Years | 0 |
After Five Years through Ten Years | 334,502 |
After Ten Years | 329,000 |
Amortized Cost | 673,502 | 657,516
Fair value |  |
Within One Year | 9,847 |
After One Year through Five Years | 0 |
After Five Years through Ten Years | 309,395 |
After Ten Years | 240,051 |
Total | $ 559,293 | 649,665
Weighted Average Yield |  |
Within One Year | 3.26% |
After One Year through Five Years | 0.00% |
After Five Years through Ten Years | 3.59% |
After Ten Years | 1.98% |
Total | 2.80% |
Foreign government bonds |  |
Amortized cost |  |
Within One Year | $ 108,712 |
After One Year through Five Years | 44,406 |
After Five Years through Ten Years | 50,000 |
After Ten Years | 50,000 |
Amortized Cost | 253,118 | 260,447
Fair value |  |
Within One Year | 108,660 |
After One Year through Five Years | 44,832 |
After Five Years through Ten Years | 50,081 |
After Ten Years | 39,424 |
Total | $ 242,997 | 257,733
Weighted Average Yield |  |
Within One Year | 1.82% |
After One Year through Five Years | 3.01% |
After Five Years through Ten Years | 0.55% |
After Ten Years | 1.50% |
Total | 1.71% |
Asset-backed securities |  |
Amortized cost |  |
Within One Year | $ 0 |
After One Year through Five Years | 0 |
After Five Years through Ten Years | 0 |
After Ten Years | 69,764 |
Amortized Cost | 69,764 | 74,674
Fair value |  |
Within One Year | 0 |
After One Year through Five Years | 0 |
After Five Years through Ten Years | 0 |
After Ten Years | 67,350 |
Total | $ 67,350 | 74,558
Weighted Average Yield |  |
Within One Year | 0.00% |
After One Year through Five Years | 0.00% |
After Five Years through Ten Years | 0.00% |
After Ten Years | 2.74% |
Total | 2.74% |
Collateralized loan obligations (“CLOs”) |  |
Amortized cost |  |
Within One Year | $ 0 |
After One Year through Five Years | 0 |
After Five Years through Ten Years | 0 |
After Ten Years | 617,250 |
Amortized Cost | 617,250 | 592,250
Fair value |  |
Within One Year | 0 |
After One Year through Five Years | 0 |
After Five Years through Ten Years | 0 |
After Ten Years | 596,371 |
Total | $ 596,371 | $ 589,950
Weighted Average Yield |  |
Within One Year | 0.00% |
After One Year through Five Years | 0.00% |
After Five Years through Ten Years | 0.00% |
After Ten Years | 2.22% |
Total | 2.22% |

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