Restricted Cash Balances	9 Months Ended
Sep. 30, 2020
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. The average reserves required to be held at the FRBSF for the nine months ended September 30, 2020 and the year ended December 31, 2019 were $55.2 million and $131.0 million. As of September 30, 2020 and December 31, 2019, we pledged cash collateral for our derivative contracts of $2.5 million and $3.2 million.

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

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