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Investment Securities (Investments Gross Unrealized Losses and Fair Value) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | $ 193,800 | $ 773,484
Securities available for sale, Less than 12 months, Unrealized Losses | 17,922 | 10,039
Securities available for sale, 12 months or longer, Fair Value | 760,210 | 172,180
Securities available for sale, 12 months or longer, Unrealized Losses | 155,102 | 4,727
Securities available for sale, Fair Value, Total | 954,010 | 945,664
Securities available for sale, Unrealized Losses, Total | 173,024 | 14,766
Total Securities, Less than 12 months, Fair Value | 193,800 | 773,484
Total Securities, Less than 12 months, Unrealized Losses | 17,922 | 10,039
Total Securities, 12 months or longer, Fair Value | 760,210 | 172,180
Total Securities, 12 months or longer, Unrealized Losses | 155,102 | 4,727
Total Securities, Fair Value | 954,010 | 945,664
Total Securities, Unrealized Losses | 173,024 | 14,766
U.S. Government Agencies And Government Sponsored Enterprises [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 0 | 9,438
Securities available for sale, Less than 12 months, Unrealized Losses | 0 | 97
Securities available for sale, 12 months or longer, Fair Value | 21,115 |
Securities available for sale, 12 months or longer, Unrealized Losses | 3,420 |
Securities available for sale, Fair Value, Total | 21,115 | 9,438
Securities available for sale, Unrealized Losses, Total | 3,420 | 97
Collateralized Mortgage Obligations [Member] | Federal National Mortgage Association [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 1,000 | 13,364
Securities available for sale, Less than 12 months, Unrealized Losses | 94 | 433
Securities available for sale, 12 months or longer, Fair Value | 8,572 | 0
Securities available for sale, 12 months or longer, Unrealized Losses | 2,509 |
Securities available for sale, Fair Value, Total | 9,572 | 13,364
Securities available for sale, Unrealized Losses, Total | 2,603 | 433
Collateralized Mortgage Obligations [Member] | Federal Home Loan Mortgage Corporation [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 0 | 24,780
Securities available for sale, Less than 12 months, Unrealized Losses | 0 | 477
Securities available for sale, 12 months or longer, Fair Value | 17,356 |
Securities available for sale, 12 months or longer, Unrealized Losses | 4,163 |
Securities available for sale, Fair Value, Total | 17,356 | 24,780
Securities available for sale, Unrealized Losses, Total | 4,163 | 477
Mortgage-Backed Securities [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 193,800 | 764,046
Securities available for sale, Less than 12 months, Unrealized Losses | 17,922 | 9,942
Securities available for sale, 12 months or longer, Fair Value | 739,095 | 172,180
Securities available for sale, 12 months or longer, Unrealized Losses | 151,682 | 4,727
Securities available for sale, Fair Value, Total | 932,895 | 936,226
Securities available for sale, Unrealized Losses, Total | 169,604 | 14,669
Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 154,006 | 333,489
Securities available for sale, Less than 12 months, Unrealized Losses | 14,708 | 3,597
Securities available for sale, 12 months or longer, Fair Value | 315,598 | 61,249
Securities available for sale, 12 months or longer, Unrealized Losses | 61,485 | 1,645
Securities available for sale, Fair Value, Total | 469,604 | 394,738
Securities available for sale, Unrealized Losses, Total | 76,193 | 5,242
Mortgage-Backed Securities [Member] | Federal Home Loan Mortgage Corporation [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 28,493 | 283,965
Securities available for sale, Less than 12 months, Unrealized Losses | 2,199 | 3,353
Securities available for sale, 12 months or longer, Fair Value | 313,728 | 110,931
Securities available for sale, 12 months or longer, Unrealized Losses | 66,409 | 3,082
Securities available for sale, Fair Value, Total | 342,221 | 394,896
Securities available for sale, Unrealized Losses, Total | 68,608 | 6,435
Mortgage-Backed Securities [Member] | Government National Mortgage Association [Member] |  |
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item] |  |
Securities available for sale, Less than 12 months, Fair Value | 10,301 | 108,448
Securities available for sale, Less than 12 months, Unrealized Losses | 921 | 2,082
Securities available for sale, 12 months or longer, Fair Value | 83,841 |
Securities available for sale, 12 months or longer, Unrealized Losses | 17,116 |
Securities available for sale, Fair Value, Total | 94,142 | 108,448
Securities available for sale, Unrealized Losses, Total | $ 18,037 | $ 2,082

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