Business Acquisition, Number Of Properties To Be Acquired

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- Definition

Business Acquisition, Settlement Of Share-Based Payment Arrangement Awards

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- Definition

Business Combination, Consideration Transferred, Right To Receive Common Stock, Ratio

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

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BUSINESS COMBINATIONS - Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended
	Jul. 31, 2024 USD ($) shares	Jul. 30, 2024 USD ($)	Mar. 31, 2025 shares	Sep. 30, 2024 shares	Jul. 31, 2024 loan_production_office	Jul. 31, 2024 full_service_bank_branch	Jul. 31, 2024 $ / shares	Jul. 31, 2024
Business Acquisition [Line Items]
Share price (usd per share) \| $ / shares							$ 15.79
Issuance of common stock in business combination (in shares) \| shares				13,579,454
Common Stock
Business Acquisition [Line Items]
Issuance of common stock in business combination (in shares) \| shares			13,497,091
CALB
Business Acquisition [Line Items]
Total purchase consideration	$ 216,638
Share price (usd per share) \| $ / shares							$ 15.79
Exchange ratio								1.590
Business combination, consideration transferred, equity interests issued and issuable	$ 213,944
Payment of in-the-money stock options		$ 1,700
Effective income tax rate	29.56%
CALB \| Core Deposits
Business Acquisition [Line Items]
Intangible asset, amortization period	10 years
CALB \| Restricted Stock Units
Business Acquisition [Line Items]
Stock-based compensation cost	$ 1,100
CALB \| Former Non-continuing Directors, Officers And Employees
Business Acquisition [Line Items]
Number of shares issued (in shares) \| shares	82,364
CALB \| Former Non-continuing Directors, Officers And Employees \| Restricted Stock Units
Business Acquisition [Line Items]
Number of shares issued (in shares) \| shares	123,123
Business combination, consideration transferred, equity interests issued and issuable	$ 1,900	825
CALB \| Former Continuing Directors, Officers And Employees \| Restricted Stock Units
Business Acquisition [Line Items]
Number of shares issued (in shares) \| shares	295,512
Business combination, consideration transferred, equity interests issued and issuable	$ 4,700	$ 1,300
Stock-based compensation cost	$ 3,400
CALB \| Northern California
Business Acquisition [Line Items]
Number of properties acquired					4	1
CALB \| Southern California
Business Acquisition [Line Items]
Number of properties acquired \| full_service_bank_branch						13