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DEPOSITS - Additional Information (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Deposits [Line Items]
Deposit reclassified as loans	$ 54,000	$ 129,000
Total deposits	7,120,921,000	7,439,435,000
Other Public Entities
Schedule Of Deposits [Line Items]
Total deposits	41,700,000	30,500,000
Securities pledged as collateral	0	0
California State Treasurer
Schedule Of Deposits [Line Items]
Total deposits	302,000,000	75,000,000
Letters of credit	$ 300,000,000	$ 235,000,000

X

- Definition

Pledged Assets Separately Reported Securities Collateral At FairValue

+ References

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Balance Type:	debit
Period Type:	instant

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- Definition

[Line Items] for Schedule Of Deposits [Table]

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- Definition

Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818

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X

- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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