Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details)

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FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
ASSETS    
Cash and cash equivalents $ 378,131 $ 319,948
Securities available for sale, at fair value 2,231,261 2,741,816
HTM securities 808,074 801,887
Restricted stock 115,472 120,213
LHFS 6,710 3,936
LHFI, net of deferred fees and costs 15,148,256 13,974,926
Financial Derivatives 93,027 80,310
Accrued interest receivable 91,370 81,953
Bank owned life insurance 452,565 440,656
LIABILITIES    
Deposits 16,799,791 15,927,361
Borrowings 1,154,694 1,645,095
Accrued interest payable 20,528 5,268
Financial Derivatives 206,561 236,000
Quoted Prices in Active Markets for Identical Assets Level 1    
ASSETS    
Cash and cash equivalents 378,131 319,948
Securities available for sale, at fair value 61,311 56,606
HTM securities 0 0
Restricted stock 0 0
LHFS 0 0
LHFI, net of deferred fees and costs 0 0
Financial Derivatives 0 0
Accrued interest receivable 0 0
Bank owned life insurance 0 0
LIABILITIES    
Deposits 0 0
Borrowings 0 0
Accrued interest payable 0 0
Financial Derivatives 0 0
Significant Other Observable Inputs Level 2    
ASSETS    
Cash and cash equivalents 0 0
Securities available for sale, at fair value 2,169,950 2,685,210
HTM securities 806,834 798,778
Restricted stock 115,472 120,213
LHFS 6,710 3,936
LHFI, net of deferred fees and costs 0 0
Financial Derivatives 93,027 80,310
Accrued interest receivable 91,370 81,953
Bank owned life insurance 452,565 440,656
LIABILITIES    
Deposits 16,799,791 15,927,361
Borrowings 1,154,694 1,645,095
Accrued interest payable 20,528 5,268
Financial Derivatives 206,561 236,000
Significant Unobservable Inputs Level 3    
ASSETS    
Cash and cash equivalents 0 0
Securities available for sale, at fair value 0 0
HTM securities 1,240 3,109
Restricted stock 0 0
LHFS 0 0
LHFI, net of deferred fees and costs 15,148,256 13,974,926
Financial Derivatives 0 0
Accrued interest receivable 0 0
Bank owned life insurance 0 0
LIABILITIES    
Deposits 0 0
Borrowings 0 0
Accrued interest payable 0 0
Financial Derivatives 0 0
Carrying Value    
ASSETS    
Cash and cash equivalents 378,131 319,948
Securities available for sale, at fair value 2,231,261 2,741,816
HTM securities 837,378 847,732
Restricted stock 115,472 120,213
LHFS 6,710 3,936
LHFI, net of deferred fees and costs 15,635,043 14,449,142
Financial Derivatives 93,027 80,310
Accrued interest receivable 91,370 81,953
Bank owned life insurance 452,565 440,656
LIABILITIES    
Deposits 16,818,129 15,931,677
Borrowings 1,311,858 1,708,700
Accrued interest payable 20,528 5,268
Financial Derivatives $ 206,561 $ 236,000