Mergers and Acquisitions - Pro Forma Combined Condensed Consolidated Financial Information (Details) - Brand Mortgage Group, LLC - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Business Combination [Line Items]
Net interest income - pro forma	$ 214,571	$ 210,037	$ 639,871	$ 620,429
Noninterest income - pro forma	46,026	99,012	139,289	200,096
Noninterest expense - pro forma	183,830	175,935	548,533	516,469
Net income - pro forma	$ 50,839	$ 98,877	$ 173,055	$ 175,698
Earnings per share - pro forma:
Basic (usd per share)	$ 0.54	$ 1.07	$ 1.83	$ 1.96
Diluted (usd per share)	$ 0.53	$ 1.06	$ 1.81	$ 1.95