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Investment Securities - Debt Securities, Held-to-maturity, Credit Quality Indicator (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | $ 886,294 | $ 0
Asset-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 400,001 |
Agency-guaranteed residential mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 7,781 |
Agency-guaranteed commercial mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 1,947 |
Agency-guaranteed residential collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 209,519 |
Agency-guaranteed commercial collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 152,794 |
Private label collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 114,252 |
AAA |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 63,767 |
AAA | Asset-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AAA | Agency-guaranteed residential mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AAA | Agency-guaranteed commercial mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AAA | Agency-guaranteed residential collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AAA | Agency-guaranteed commercial collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AAA | Private label collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 63,767 |
AA |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 7,077 |
AA | Asset-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AA | Agency-guaranteed residential mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AA | Agency-guaranteed commercial mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AA | Agency-guaranteed residential collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AA | Agency-guaranteed commercial collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
AA | Private label collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 7,077 |
A |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 34,189 |
A | Asset-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
A | Agency-guaranteed residential mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
A | Agency-guaranteed commercial mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
A | Agency-guaranteed residential collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
A | Agency-guaranteed commercial collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
A | Private label collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 34,189 |
BBB |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 9,219 |
BBB | Asset-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
BBB | Agency-guaranteed residential mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
BBB | Agency-guaranteed commercial mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
BBB | Agency-guaranteed residential collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
BBB | Agency-guaranteed commercial collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 0 |
BBB | Private label collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 9,219 |
Not Rated |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 772,042 |
Not Rated | Asset-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 400,001 |
Not Rated | Agency-guaranteed residential mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 7,781 |
Not Rated | Agency-guaranteed commercial mortgage-backed securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 1,947 |
Not Rated | Agency-guaranteed residential collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 209,519 |
Not Rated | Agency-guaranteed commercial collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | 152,794 |
Not Rated | Private label collateralized mortgage obligations |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investment securities held to maturity | $ 0 |

X
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