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Investment Securities (Investments Gross Unrealized Losses and Fair Value) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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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 | $ 773,484 | $ 29,087
Securities available for sale, Less than 12 months, Unrealized Losses | 10,039 | 68
Securities available for sale, 12 months or longer, Fair Value | 172,180 | 8
Securities available for sale, 12 months or longer, Unrealized Losses | 4,727 |
Securities available for sale, Fair Value, Total | 945,664 | 29,095
Securities available for sale, Unrealized Losses, Total | 14,766 | 68
Total Securities, Less than 12 months, Fair Value | 773,484 | 29,087
Total Securities, Less than 12 months, Unrealized Losses | 10,039 | 68
Total Securities, 12 months or longer, Fair Value | 172,180 | 8
Total Securities, 12 months or longer, Unrealized Losses | 4,727 |
Total Securities, Fair Value | 945,664 | 29,095
Total Securities, Unrealized Losses | 14,766 | 68
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 | 9,438 |
Securities available for sale, Less than 12 months, Unrealized Losses | 97 |
Securities available for sale, Fair Value, Total | 9,438 |
Securities available for sale, Unrealized Losses, Total | 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 | 13,364 |
Securities available for sale, Less than 12 months, Unrealized Losses | 433 |
Securities available for sale, 12 months or longer, Fair Value | 0 | 8
Securities available for sale, Fair Value, Total | 13,364 | 8
Securities available for sale, Unrealized Losses, Total | 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 | 24,780 |
Securities available for sale, Less than 12 months, Unrealized Losses | 477 |
Securities available for sale, Fair Value, Total | 24,780 |
Securities available for sale, Unrealized Losses, Total | 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 | 764,046 | 29,087
Securities available for sale, Less than 12 months, Unrealized Losses | 9,942 | 68
Securities available for sale, 12 months or longer, Fair Value | 172,180 | 8
Securities available for sale, 12 months or longer, Unrealized Losses | 4,727 |
Securities available for sale, Fair Value, Total | 936,226 | 29,095
Securities available for sale, Unrealized Losses, Total | 14,669 | 68
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 | 333,489 | 18,155
Securities available for sale, Less than 12 months, Unrealized Losses | 3,597 | 44
Securities available for sale, 12 months or longer, Fair Value | 61,249 |
Securities available for sale, 12 months or longer, Unrealized Losses | 1,645 |
Securities available for sale, Fair Value, Total | 394,738 | 18,155
Securities available for sale, Unrealized Losses, Total | 5,242 | 44
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 | 283,965 | 10,932
Securities available for sale, Less than 12 months, Unrealized Losses | 3,353 | 24
Securities available for sale, 12 months or longer, Fair Value | 110,931 |
Securities available for sale, 12 months or longer, Unrealized Losses | 3,082 |
Securities available for sale, Fair Value, Total | 394,896 | 10,932
Securities available for sale, Unrealized Losses, Total | 6,435 | $ 24
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 | 108,448 |
Securities available for sale, Less than 12 months, Unrealized Losses | 2,082 |
Securities available for sale, Fair Value, Total | 108,448 |
Securities available for sale, Unrealized Losses, Total | $ 2,082 |

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