Quarterly report [Sections 13 or 15(d)]

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

v3.25.3
FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
ASSETS    
Cash and cash equivalents $ 794,665 $ 354,074
AFS Securities 4,267,523 2,442,166
HTM securities 848,099 759,335
Restricted stock 159,320 102,954
LHFS 24,772 9,420
LHFI, net of deferred fees and costs 27,055,519 17,896,688
Financial Derivatives 110,293 97,445
Accrued interest receivable 127,788 92,541
Bank owned life insurance 669,102 493,396
LIABILITIES    
Deposits 30,658,640 20,393,673
Borrowings 780,165 471,671
Accrued interest payable 22,128 26,214
Financial Derivatives 170,694 199,548
Fair Value, Inputs, Level 1 [Member]    
ASSETS    
Cash and cash equivalents 794,665 354,074
AFS Securities 113,159 62,199
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
Fair Value, Inputs, Level 2 [Member]    
ASSETS    
Cash and cash equivalents 0 0
AFS Securities 4,154,364 2,379,967
HTM securities 847,198 758,400
Restricted stock 159,320 102,954
LHFS 24,772 9,420
LHFI, net of deferred fees and costs 0 0
Financial Derivatives 110,293 97,445
Accrued interest receivable 127,788 92,541
Bank owned life insurance 669,102 493,396
LIABILITIES    
Deposits 30,658,640 20,393,673
Borrowings 780,165 471,671
Accrued interest payable 22,128 26,214
Financial Derivatives 170,694 199,548
Fair Value, Inputs, Level 3 [Member]    
ASSETS    
Cash and cash equivalents 0 0
AFS Securities 0 0
HTM securities 901 935
Restricted stock 0 0
LHFS 0 0
LHFI, net of deferred fees and costs 27,055,519 17,896,688
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
Reported Value Measurement [Member]    
ASSETS    
Cash and cash equivalents 794,665 354,074
AFS Securities 4,267,523 2,442,166
HTM securities 883,786 803,851
Restricted stock 159,320 102,954
LHFS 24,772 9,420
LHFI, net of deferred fees and costs 27,361,173 18,470,621
Financial Derivatives 110,293 97,445
Accrued interest receivable 127,788 92,541
Bank owned life insurance 669,102 493,396
LIABILITIES    
Deposits 30,665,324 20,397,619
Borrowings 860,312 534,578
Accrued interest payable 22,128 26,214
Financial Derivatives $ 170,694 $ 199,548