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v3.22.2.2

Investment Securities (Narrative) (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Schedule of Investments [Line Items] |  |  |
Other than Temporary Impairment Losses, Investments | $ 0 | $ 0 |
Debt Securities, Available-for-sale, Amortized Cost | 1,893,453,000 |  | $ 1,727,363,000
Debt Securities, Available-for-sale, Allowance for Credit Loss | $ 0 |  | 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% |  |
Debt Securities, Available for Sale, Sold at Gain, Amortized Cost Amount | $ 0 | $ 0 |
Debt Securities, Available-for-sale | 1,742,123,000 |  | 1,754,140,000
Debt Securities, Available-for-sale, Unrealized Loss Position | 1,711,086,000 |  | 840,832,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 151,430,000 |  | 9,514,000
Securities Available-for-Sale, 12 months or longer, Fair value | 383,147,000 |  | 73,431,000
U.S. Government Sponsored Entities Asset-Backed Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Amortized Cost | 877,435,000 |  | 849,114,000
Debt Securities, Available-for-sale | 784,863,000 |  | 854,463,000
Debt Securities, Available-for-sale, Unrealized Loss Position | 784,863,000 |  | 407,084,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 92,572,000 |  | 8,088,000
Securities Available-for-Sale, 12 months or longer, Fair value | 236,024,000 |  | 73,431,000
USGovernmentSponsored asset backed securities and US Treasury obligations |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 93,500,000 |  |
Collateral Pledged [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Debt Securities, Available-for-sale, Restricted | $ 764,000,000 |  | $ 733,700,000

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