Income Taxes - Reconciliation of Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Computed at the statutory rate (21%)	$ 5,354	$ 11,862	$ 24,624	$ 38,045
State income taxes, net of federal tax benefit	(644)	(40)	(1,370)	657
Stock-based compensation	(14)	28	454	469
Tax exempt interest income	(3,810)	(3,848)	(11,518)	(11,523)
Tax exempt earnings on BOLI	(755)	(636)	(2,376)	(1,973)
Federal tax credits	(546)	(567)	(1,667)	(1,501)
Other differences, net	1,176	2,444	4,736	5,845
Actual tax provision	$ 761	$ 9,243	$ 12,883	$ 30,019