Parent Company Condensed Financial Statements - Schedule of Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Assets
Cash and due from bank subsidiary	$ 258,588	$ 265,209
Other assets	357,799	246,038
Total assets	20,751,978	19,242,543
Liabilities and Stockholders' Equity
Other liabilities	81,780	138,739
Stockholders' equity	3,783,977	3,110,661	$ 2,743,798
Total liabilities and stockholders' equity	20,751,978	19,242,543
Parent Company
Assets
Total investment securities	1,874,332	1,727,762
Cash and due from bank subsidiary	896,588	312,447
Investment Securities AFS	721	982
Loans	0	18,720
Note receivable due from bank subsidiary	1,010,000	980,000
Advances to subsidiaries, net of borrowings	1,010	75,120
Other assets	42,741	36,885
Total assets	3,825,392	3,151,916
Liabilities and Stockholders' Equity
Other liabilities	41,415	41,255
Stockholders' equity	3,783,977	3,110,661
Total liabilities and stockholders' equity	$ 3,825,392	$ 3,151,916