Restricted Cash Balances	6 Months Ended
Jun. 30, 2021
Restricted Cash [Abstract]
Restricted Cash Balances	RESTRICTED CASH BALANCESThe FRBSF establishes cash reserve requirements that its member banks must maintain based on a percentage of deposit liabilities. On March 26, 2020, the FRBSF reduced the reserve requirement ratios to zero percent. There was no average reserves required to be held at the FRBSF for the six months ended June 30, 2021. The average reserves required to be held at the FRBSF for the six months ended June 30, 2020 was $83.1 million. As of June 30, 2021 and December 31, 2020, we pledged cash collateral for our derivative contracts of $2.0 million and $2.9 million.

Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.

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