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Investment Securities (Investments Gross Unrealized Losses and Fair Value) (Details) - USD ($) $ in Thousands | Jun. 30, 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 | $ 750,814 | $ 773,484
Securities available for sale, Less than 12 months, Unrealized Losses | 77,422 | 10,039
Securities available for sale, 12 months or longer, Fair Value | 305,309 | 172,180
Securities available for sale, 12 months or longer, Unrealized Losses | 49,235 | 4,727
Securities available for sale, Fair Value, Total | 1,056,123 | 945,664
Securities available for sale, Unrealized Losses, Total | 126,657 | 14,766
Total Securities, Less than 12 months, Fair Value | 750,814 | 773,484
Total Securities, Less than 12 months, Unrealized Losses | 77,422 | 10,039
Total Securities, 12 months or longer, Fair Value | 305,309 | 172,180
Total Securities, 12 months or longer, Unrealized Losses | 49,235 | 4,727
Total Securities, Fair Value | 1,056,123 | 945,664
Total Securities, Unrealized Losses | 126,657 | 14,766
U.S. Government Agency 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 | 22,190 | 9,438
Securities available for sale, Less than 12 months, Unrealized Losses | 2,345 | 97
Securities available for sale, Fair Value, Total | 22,190 | 9,438
Securities available for sale, Unrealized Losses, Total | 2,345 | 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 | 6,206 | 13,364
Securities available for sale, Less than 12 months, Unrealized Losses | 748 | 433
Securities available for sale, 12 months or longer, Fair Value | 5,212 | 0
Securities available for sale, 12 months or longer, Unrealized Losses | 1,022 |
Securities available for sale, Fair Value, Total | 11,418 | 13,364
Securities available for sale, Unrealized Losses, Total | 1,770 | 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 | 15,749 | 24,780
Securities available for sale, Less than 12 months, Unrealized Losses | 1,911 | 477
Securities available for sale, 12 months or longer, Fair Value | 4,212 |
Securities available for sale, 12 months or longer, Unrealized Losses | 862 |
Securities available for sale, Fair Value, Total | 19,961 | 24,780
Securities available for sale, Unrealized Losses, Total | 2,773 | 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 | 728,624 | 764,046
Securities available for sale, Less than 12 months, Unrealized Losses | 75,077 | 9,942
Securities available for sale, 12 months or longer, Fair Value | 305,309 | 172,180
Securities available for sale, 12 months or longer, Unrealized Losses | 49,235 | 4,727
Securities available for sale, Fair Value, Total | 1,033,933 | 936,226
Securities available for sale, Unrealized Losses, Total | 124,312 | 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 | 407,151 | 333,489
Securities available for sale, Less than 12 months, Unrealized Losses | 36,437 | 3,597
Securities available for sale, 12 months or longer, Fair Value | 113,541 | 61,249
Securities available for sale, 12 months or longer, Unrealized Losses | 18,395 | 1,645
Securities available for sale, Fair Value, Total | 520,692 | 394,738
Securities available for sale, Unrealized Losses, Total | 54,832 | 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 | 225,921 | 283,965
Securities available for sale, Less than 12 months, Unrealized Losses | 27,154 | 3,353
Securities available for sale, 12 months or longer, Fair Value | 151,571 | 110,931
Securities available for sale, 12 months or longer, Unrealized Losses | 25,370 | 3,082
Securities available for sale, Fair Value, Total | 377,492 | 394,896
Securities available for sale, Unrealized Losses, Total | 52,524 | 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 | 73,597 | 108,448
Securities available for sale, Less than 12 months, Unrealized Losses | 8,827 | 2,082
Securities available for sale, 12 months or longer, Fair Value | 30,773 |
Securities available for sale, 12 months or longer, Unrealized Losses | 3,586 |
Securities available for sale, Fair Value, Total | 104,370 | 108,448
Securities available for sale, Unrealized Losses, Total | $ 12,413 | $ 2,082

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