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Borrowing Arrangements (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Borrowing Arrangements
Investments securing FHLB advances, amortized cost	$ 790,492,000	$ 1,098,373,000
Available-for-sale debt securities	710,481,000	1,109,208,000
Federal funds purchased	0	0
Asset Pledged as Collateral
Borrowing Arrangements
Available-for-sale debt securities	185,061,000
Federal Home Loan Bank Advances
Borrowing Arrangements
Remaining borrowing capacity	260,052,000
Federal Home Loan Bank Advances | Asset Pledged as Collateral
Borrowing Arrangements
Debt Securities	490,366,000
Federal Home Loan Bank Advances | Securities Pledged as Collateral
Borrowing Arrangements
Investments securing FHLB advances, amortized cost	95,000	112,000
Available-for-sale debt securities	101,000	117,000
San Fransisco Branch
Borrowing Arrangements
Advances from FHLB	$ 9,324,000	$ 0

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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