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Goodwill and Other Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
The following table presents the changes in the carrying amount of goodwill:
Three Months Ended
June 30,		Six Months Ended
June 30,
(dollars in thousands)2025202420252024
Balance at beginning of period$2,175,251 $1,998,716 $2,175,251 $1,998,716 
Acquisitions and adjustments234,635 171,993 234,635 171,993 
Balance at end of period$2,409,886 $2,170,709 $2,409,886 $2,170,709 
Schedule of Gross Carrying Amounts and Accumulated Amortization of Other Intangible Assets
The gross carrying amounts and accumulated amortization of other intangible assets were as follows: 
(dollars in thousands)Gross
Carrying
Amount		Accumulated
Amortization
and Impairment		Net
Carrying
Amount
June 30, 2025   
Core deposit$586,735 $(119,268)$467,467 
Customer relationship93,892 (26,873)67,019 
Total other intangible assets$680,627 $(146,141)$534,486 
December 31, 2024
Core deposit$189,636 $(95,950)$93,686 
Customer relationship50,892 (23,731)27,161 
Total other intangible assets$240,528 $(119,681)$120,847 
Schedule of Estimated Amortization Expense for Future Years
Estimated amortization expense for future years is as follows:
(dollars in thousands) 
2025 remaining$52,200 
202696,109 
202784,810 
202873,689 
202962,983 
Thereafter164,695 
Total$534,486