Fair Value Measurement and Fair Value of Financial Instruments - Schedule Of Increase (Decrease) In Fair Value Of Assets For Which a Fair Value Adjustment Was Recognized, Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Loans held-for-investment
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	$ (361)	$ (10,088)	$ (19,759)	$ (14,891)
Loans held-for-investment | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(371)	(10,047)	(18,363)	(14,850)
Loans held-for-investment | Commercial lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(266)	366	(16,025)	(4,437)
Loans held-for-investment | Commercial lending | Total CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(105)	(10,413)	(2,338)	(10,413)
Loans held-for-investment | Commercial lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	89	0	0	0
Loans held-for-investment | Commercial lending | Multifamily residential
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(49)	0	(49)	0
Loans held-for-investment | Commercial lending | Construction and land
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(145)	(10,413)	(2,289)	(10,413)
Loans held-for-investment | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	10	(41)	(1,396)	(41)
Loans held-for-investment | Consumer lending | Single-family residential
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	10	0	(1,396)	0
Loans held-for-investment | Consumer lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	0	(41)	0	(41)
Tax credit investments
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	0	(790)	0	(1,577)
OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	$ 0	$ 0	$ (2,576)	$ 0