Loans - Schedule of Non-Purchased Loans and Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Summary of loans
Loans, net of unearned income	$ 19,196,172	$ 19,047,039
Consumer
Summary of loans
Loans, net of unearned income	99,172	107,900
Commercial and industrial
Summary of loans
Loans, net of unearned income	3,063,069	2,818,326
Construction and land development
Summary of loans
Loans, net of unearned income	2,009,664	1,905,636
Construction and land development \| Residential
Summary of loans
Loans, net of unearned income	416,894	382,773
Construction and land development \| Other
Summary of loans
Loans, net of unearned income	1,592,770	1,522,863
Construction and land development \| Commercial real estate
Summary of loans
Loans, net of unearned income	2,009,664	1,905,636
Real estate – 1-4 family mortgage:
Summary of loans
Loans, net of unearned income	4,568,039	4,635,033
Real estate – 1-4 family mortgage: \| First lien
Summary of loans
Loans, net of unearned income	3,788,776	3,844,097
Real estate – 1-4 family mortgage: \| Junior lien
Summary of loans
Loans, net of unearned income	53,068	52,943
Real estate – 1-4 family mortgage: \| Home equity
Summary of loans
Loans, net of unearned income	726,195	737,993
Commercial real estate
Summary of loans
Loans, net of unearned income	6,123,500	6,245,480
Commercial real estate \| Commercial real estate - owner occupied
Summary of loans
Loans, net of unearned income	3,332,728	3,334,664
Commercial real estate \| Multi family
Summary of loans
Loans, net of unearned income	1,161,071	1,392,779
Commercial real estate \| Other
Summary of loans
Loans, net of unearned income	$ 4,962,429	$ 4,852,701