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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill and Other Intangible Assets
Goodwill and other intangible assets as of December 31, 2025 and 2024 are summarized as follows (in thousands):
20252024
Goodwill$624,069 624,069 
Core deposit premiums149,066 184,238 
Customer relationship and other intangibles7,972 9,819 
Mortgage servicing rights1,045 1,104 
Total goodwill and other intangible assets$782,152 819,230 
Schedule of Amortization Expense of Intangible Assets
Amortization expense of intangible assets for the years ended December 31, 2025, 2024 and 2023 is as follows (in thousands):
202520242023
Core deposit premiums$35,172 26,827 544 
Customer relationship and other intangibles1,847 2,047 2,335 
Mortgage servicing rights55 57 73 
Total amortization expense of intangible assets$37,074 28,931 2,952 
Scheduled Amortization of Core Deposit Intangibles
Scheduled amortization of core deposit premiums and customer relationship intangibles for each of the next five years is as follows (in thousands): 
Year ended December 31,Scheduled Amortization
2026$33,283 
202729,543 
202825,817 
202921,148 
203017,009