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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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LOANS & ALLOWANCE FOR CREDIT LOSSES - LOAN PORTFOLIO COMPOSITION (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 07, 2023	Sep. 30, 2023	Jun. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 19,825,834	$ 19,802,811
Allowance for credit losses - loans	(263,854)	(260,542)		$ (170,870)	$ (166,680)
Unaccreted premiums (discounts) and loan fees	(281,371)	(310,884)
Total net loans	19,280,609	19,231,385
Single Family - Mortgage & Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,151,583	4,178,832
Allowance for credit losses - loans	(17,453)	(16,943)		(17,426)	(17,503)
Multifamily and Commercial Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,647,469	3,861,931
Allowance for credit losses - loans	(65,608)	(70,771)		(15,874)	(16,848)
Multifamily and Commercial Mortgage \| Real Estate Loan Portfolios
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	282,600	284,000
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,256,265	6,088,622
Allowance for credit losses - loans	(95,032)	(87,780)		(71,355)	(72,755)
Commercial Real Estate \| Real Estate Loan Portfolios
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	44,500	44,500
Total net loans			$ 1,300,000
Commercial & Industrial - Non-RE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,354,752	5,241,766
Allowance for credit losses - loans	(76,555)	(76,032)		(54,592)	(46,347)
Auto & Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	415,765	431,660
Allowance for credit losses - loans	$ (9,206)	$ (9,016)		$ (11,623)	$ (13,227)