v3.26.3
Business Combinations, Asset Acquisitions, Transaction between Entities under Common Control, and Joint Venture Formation (Tables)
 9 Months Ended
Apr. 01, 2026
Sep. 30, 2026
Business Combination [Abstract]    
Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block]
The following table presents the estimated fair values of the assets acquired and liabilities assumed as of the effective date of the American National acquisition.
(in thousands)April 1, 2026
Total Consideration$594,144 
Assets
Cash and cash equivalents$220,898 
Investment securities989,925 
Loans, net3,716,472 
Other intangible assets(a)
103,200 
Other assets155,960 
Total assets$5,186,455 
Liabilities
Deposits$4,544,700 
Other liabilities89,700 
Total liabilities$4,634,400 
Fair value of net assets acquired$552,055 
Goodwill$42,089 
(a) Core deposit intangibles
  
Schedule Of Financing Receivables Purchased Seasoned Loans [Table Text Block] The following table includes the fair value and unpaid principal balance of the acquired loans and leases:
(in thousands)Unpaid principal balancePremium
(Discount)		Loans and leasesAllowance for credit losses on loansLoans and leases, net
Non-PCD loans$3,185,647 $2,692 $3,188,339 $(28,263)$3,160,076 
PCD Loans615,403 (19,495)595,908 (39,512)556,396 
Total$3,801,050 $(16,803)$3,784,247 $(67,775)$3,716,472 
  
Business Combination, Separately Recognized Transaction [Table Text Block]   The following table presents merger related costs, and the line item that these costs are included in on the consolidated statement of income, for the three and nine months ended September 30, 2026. Additional transaction and integration costs will be expensed in future periods as incurred.
(in thousands)Three Months Ended September 30, 2026Nine Months Ended Sep 30, 2026
Personnel$723 $14,087 
Technology9,039 9,820 
Occupancy503 606 
Business development and advertising862 1,516 
Equipment102 200 
Legal and professional2,029 12,282 
Other— 223 
Total$13,258 $38,734 
Business Combination, Pro Forma Information [Table Text Block]  
Pro Forma Financial Information
The following unaudited pro forma summary presents consolidated information of the Corporation as if the American National acquisition had occurred on January 1, 2025. The amounts do not reflect anticipated operating cost savings, revenue enhancements, or other synergies expected to result from the acquisition. Actual results may differ from the unaudited pro forma information presented.
Three Months Ended Sep 30,Nine Months Ended Sep 30,
(Unaudited) (in thousands)2026202520262025
Net interest income and noninterest income$462,635 $437,119 $1,344,241 $1,244,017 
Net income155,546 135,670 417,656 337,274 
Business Combination, Pro Forma Information, Nonrecurring Adjustment [Table Text Block]   The pro forma adjustments include the effect of excluding acquisition-related expenses of $38.7 million for the nine months ended September 30, 2026 and included such expenses in the nine months ended September 30, 2025. These adjustments also include adjusting amortization and accretion of fair value marks on acquired loans, investments, deposits, intangibles, other assets/liabilities, and the effect of income taxes.