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Fair Value Measurement and Fair Value of Financial Instruments - Increase (Decrease) in Fair Value of Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | $ (6,513) | $ (9,432) | $ (12,333) | $ (25,674)
Tax credit investments |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | 0 | 877 | 0 | 877
OREO |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | 0 | (910) | 0 | (910)
Other nonperforming assets |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | (6,861) | 0 | (6,861) | (3,890)
Commercial lending | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | (6,595) | (6,944) | (12,418) | (23,152)
Commercial lending | Commercial and industrial (“C&I”) | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | (6,054) | (6,462) | (14,740) | (15,530)
Commercial lending | Commercial real estate (“CRE”) | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | (533) | (275) | 2,330 | (7,336)
Commercial lending | Multifamily residential | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | (8) | 2 | (8) | (6)
Commercial lending | Construction and land | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | 0 | (209) | 0 | (280)
Consumer lending | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | 82 | (2,488) | 85 | (2,522)
Consumer lending | Single Family Residential | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | 0 | 0 | 0 | (8)
Consumer lending | HELOCs | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | 82 | 3 | 85 | (23)
Consumer lending | Other consumer | Loans held-for-investment |  |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |  |
Increase (decrease) in value of assets | $ 0 | $ (2,491) | $ 0 | $ (2,491)

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