Annual report [Section 13 and 15(d), not S-K Item 405]

PARENT COMPANY FINANCIAL INFORMATION (CONDENSED STATEMENTS OF CASH FLOWS) (Details)

v3.25.4
PARENT COMPANY FINANCIAL INFORMATION (CONDENSED STATEMENTS OF CASH FLOWS) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Operating activities:      
Net income $ 273,715 $ 209,131 $ 201,818
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation of premises and equipment 17,741 12,754 12,913
Acquisition accounting amortization, net (87,036) (21,309) 4,788
Deferred tax (benefit) expense (7,802) (4,419)  
Gain on sale of equity interest investment (14,757) 0 0
Net (increase) decrease in other assets 18,751 (83) (23,177)
Net increase in other liabilities (40,926) 11,588 21,861
Net cash provided by operating activities 2,237,380 308,456 278,045
Investing activities:      
Proceeds from maturities, calls and paydowns 18,941 35,533 20,329
Proceeds from maturities, calls and paydowns of securities available for sale 628,569 268,897 178,185
Proceeds from sale of former bank premises 5,687 7,369 56,462
Net cash received in acquisition 270,211 54,988 0
Net cash used in investing activities (797,417) (295,687) (603,278)
Financing activities:      
Net decrease in short-term borrowings 336,985 (902,894) (398,004)
Repayments of long-term debt (200,000) 0 0
Dividends paid (192,133) (123,875) (103,285)
Proceeds for issuance of common stock 0 228 778
Forward sale commmon stock issuance 384,963 0 0
Vesting of restricted stock, net of shares held for taxes (6,953) (3,961) (2,494)
Net cash and cash equivalents provided by (used in) financing activities (827,575) (36,826) 383,416
(Decrease) increase in cash and cash equivalents 612,388 (24,057) 58,183
Cash, cash equivalents and restricted cash at beginning of the period 354,074 378,131 319,948
Cash, cash equivalents and restricted cash at end of the period 966,462 354,074 378,131
Issuance of common stock in exchange for net assets in acquisitions 1,275,441 505,402 0
Assets acquired 12,967,058 2,946,897 0
Liabilities assumed 12,210,323 2,730,266 0
Parent Company [Member]      
Operating activities:      
Net income 273,715 209,131 201,818
Adjustments to reconcile net income to net cash provided by operating activities:      
Equity in undistributed net income of subsidiaries (193,496) (117,173) (103,734)
Acquisition accounting amortization, net 9,879 1,078 851
Stock-based compensation expenses 24,890 13,796 11,101
Deferred tax (benefit) expense (1,135) 4,419 0
Gain on sale of equity interest investment (14,757) 0 0
Issuance of common stock for services 1,415 970 735
Net (increase) decrease in other assets (23,752) 1,536 3,256
Net increase in other liabilities 21,088 1,040 13,201
Net cash provided by operating activities 97,847 114,797 127,228
Investing activities:      
Proceeds from maturities, calls and paydowns of securities available for sale 611 0 0
Increase in equity method investments (8,911) (5,765) (7,410)
Distributions/sale of equity method investments 44,230 1,249 47
Increase in investment in subsidiaries (385,000) 0 0
Net cash received in acquisition 80,902 212 0
Net cash used in investing activities (268,168) (4,304) (7,363)
Financing activities:      
Repayments of long-term debt (16,268) 0 0
Dividends paid (192,133) (123,875) (103,285)
Proceeds for issuance of common stock 0 228 778
Forward sale commmon stock issuance 384,963 0 0
Vesting of restricted stock, net of shares held for taxes (6,953) (3,961) (2,494)
Net cash and cash equivalents provided by (used in) financing activities 169,609 (127,608) (105,001)
(Decrease) increase in cash and cash equivalents (712) (17,115) 14,864
Cash, cash equivalents and restricted cash at beginning of the period 15,221 32,336 17,472
Cash, cash equivalents and restricted cash at end of the period 14,509 15,221 32,336
Issuance of common stock in exchange for net assets in acquisitions 1,275,441 505,402 0
Assets acquired 1,637,042 521,218 0
Liabilities assumed $ 361,072 $ 30,398 $ 0