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LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Schedule of Stated at Face Amount, Net of Unearned Income) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	$ 18,337,299		$ 15,635,043
Total Allowance for credit losses	(160,685)	$ (158,131)	(132,182)	$ (125,627)	$ (120,683)	$ (110,768)
Total loans held for investment, net	18,176,614		15,502,861
Loans receivable, deferred fees and costs	228,300		79,700
Construction Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	1,588,531		1,107,850
CRE - Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	2,401,807		1,998,787
CRE - Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	4,885,785		4,172,401
Multifamily Real Estate
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	1,357,730		1,061,997
Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	3,799,872		3,589,347
Residential 1-4 Family - Commercial
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	729,315		522,580
Residential 1-4 Family - Mortgage
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	1,281,914		1,078,173
Residential 1-4 Family - Revolving
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	738,665		619,433
Automobile Loan [Member]
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	354,570		486,926
Consumer
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	109,522		120,641
Other Commercial
Loans and Leases Receivable Disclosure [Line Items]
LHFI, net of deferred fees and costs	$ 1,089,588		$ 876,908

X

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Amount excluding accrued interest, of allowance for credit loss on financing receivable and lease receivable if applicable.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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