Parent Company Condensed Financial Statements - Schedule of Condensed Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Income
Other income	$ 231,694	$ 210,390
Expense
Salaries and employee benefits	298,080	281,087
Management & data processing fees paid to subsidiaries	48,990	47,131
Other expenses	62,044	62,589
Income taxes	115,705	87,910
Net income	390,853	305,810
Parent Company
Income
Dividends received from bank subsidiary	320,000	245,000
Interest income	56,895	62,677
Management fees charged to subsidiaries	0	850
Other income	432	464
Total income	377,327	308,991
Expense
Salaries and employee benefits	9,651	9,181
Management & data processing fees paid to subsidiaries	893	897
Other expenses	2,476	1,621
Total expense	13,020	11,699
Income taxes	10,545	12,450
Income before undistributed earnings of subsidiaries	353,762	284,842
Undistributed earnings (loss) of subsidiaries	37,091	20,968
Net income	$ 390,853	$ 305,810