Premises and Equipment - Schedule of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Premises and Equipment
Premises and equipment, gross amount	$ 275,400	$ 190,247
Accumulated depreciation and amortization	112,926	103,466
Total premises and equipment	162,474	86,781
Land
Premises and Equipment
Premises and equipment, gross amount	27,203	15,416
Fine art
Premises and Equipment
Premises and equipment, gross amount	603	602
Computer equipment
Premises and Equipment
Premises and equipment, gross amount	$ 20,531	19,158
Estimated Useful Life	3 years
Vehicles
Premises and Equipment
Premises and equipment, gross amount	$ 824	176
Estimated Useful Life	3 years
Core processing system and software
Premises and Equipment
Premises and equipment, gross amount	$ 28,367	27,034
Furniture, fixtures and equipment
Premises and Equipment
Premises and equipment, gross amount	20,600	15,461
Office building and improvements
Premises and Equipment
Premises and equipment, gross amount	$ 177,272	$ 112,400
Minimum | Core processing system and software
Premises and Equipment
Estimated Useful Life	3 years
Minimum | Furniture, fixtures and equipment
Premises and Equipment
Estimated Useful Life	3 years
Minimum | Office building and improvements
Premises and Equipment
Estimated Useful Life	10 years
Maximum | Core processing system and software
Premises and Equipment
Estimated Useful Life	5 years
Maximum | Furniture, fixtures and equipment
Premises and Equipment
Estimated Useful Life	15 years
Maximum | Office building and improvements
Premises and Equipment
Estimated Useful Life	40 years