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Investment Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Investment Holdings [Line Items] |  |
Total investment securities | $ 2,097,839 | $ 1,277,728
Asset Pledged as Collateral |  |
Investment Holdings [Line Items] |  |
Debt Securities, Amortized Cost | 336,039 | 305,579
Total investment securities | 291,631 | 305,179
Washington and Oregon state public deposits | Asset Pledged as Collateral |  |
Investment Holdings [Line Items] |  |
Debt Securities, Amortized Cost | 156,784 | 128,216
Total investment securities | 137,931 | 130,217
Federal Reserve Bank credit facility | Asset Pledged as Collateral |  |
Investment Holdings [Line Items] |  |
Debt Securities, Amortized Cost | 60,660 | 61,057
Total investment securities | 49,506 | 59,674
Securities sold under agreement to repurchase | Asset Pledged as Collateral |  |
Investment Holdings [Line Items] |  |
Debt Securities, Amortized Cost | 63,685 | 59,887
Total investment securities | 55,836 | 59,655
Other securities pledged | Asset Pledged as Collateral |  |
Investment Holdings [Line Items] |  |
Debt Securities, Amortized Cost | 54,910 | 56,419
Total investment securities | $ 48,358 | $ 55,633

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- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References No definition available. + Details
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- Details
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