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Borrowings and Other Obligations - Schedule of Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Carrying Value	$ 154	$ 298
Carrying Value	154	26,298	$ 112,439
Average Balance	$ 4,628	$ 221,623	$ 2,295
Average Rate	5.13%	5.15%	3.90%
Other obligations (finance leases)
Debt Instrument [Line Items]
Carrying Value	$ 154	$ 298	$ 439
Average Balance	$ 222	$ 364	$ 374
Average Rate	2.23%	1.88%	0.65%
Line of Credit | Federal funds lines of credit
Debt Instrument [Line Items]
Carrying Value	$ 0	$ 0	$ 0
Average Balance	$ 0	$ 0	$ 0
Average Rate	0.00%	0.00%	0.00%
Line of Credit | FRBSF advances - Discount Window
Debt Instrument [Line Items]
Carrying Value	$ 0	$ 0	$ 0
Average Balance	$ 2,680	$ 0	$ 0
Average Rate	5.42%	0.00%	0.00%
FHLB short-term borrowings | Line of Credit
Debt Instrument [Line Items]
Carrying Value	$ 0	$ 0	$ 112,000
Average Balance	$ 119	$ 164,299	$ 1,921
Average Rate	5.52%	5.10%	4.48%
FHLB fixed-rate advances | Line of Credit
Debt Instrument [Line Items]
Carrying Value	$ 0	$ 0	$ 0
Average Balance	$ 0	$ 0	$ 0
Average Rate	0.00%	0.00%	0.00%
FRBSF short-term borrowings under the BTFP | Line of Credit
Debt Instrument [Line Items]
Carrying Value	$ 0	$ 26,000	$ 0
Average Balance	$ 1,607	$ 56,959	$ 0
Average Rate	5.00%	5.30%	0.00%

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