Annual report pursuant to Section 13 and 15(d)

LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details)

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LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs $ 15,635,043 $ 14,449,142  
Total Allowance for credit losses (132,182) (110,768) $ (99,787)
Total loans held for investment, net 15,502,861 14,338,374  
Loans receivable, deferred fees and costs 79,700 50,400  
Construction and Land Development      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 1,107,850 1,101,260  
Commercial Real Estate - Owner Occupied      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 1,998,787 1,982,608  
Commercial Real Estate - Non-Owner Occupied      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 4,172,401 3,996,130  
Multifamily Real Estate      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 1,061,997 802,923  
Commercial and Industrial      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 3,589,347 2,983,349  
Residential 1-4 Family - Commercial      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 522,580 538,063  
Residential 1-4 Family - Mortgage      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 1,078,173 940,275  
Residential 1-4 Family - Revolving      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 619,433 585,184  
Auto      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 486,926 592,976  
Consumer      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs 120,641 152,545  
Other Commercial      
Loans and Leases Receivable Disclosure [Line Items]      
LHFI, net of deferred fees and costs $ 876,908 $ 773,829