Parent Company Financial Information - Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Income Statements, Captions [Line Items]
Gain (loss) on sale of investment securities	$ (169)	$ 2,964	$ 1,815
Interest expense	91,746	39,982	68,424
Legal and professional	8,583	11,510	16,406
Provision for credit losses	266	(20,821)	45,571
Other	14,406	12,610	14,680
Income Before Income Tax Expense	189,680	237,674	176,145
Income Tax Benefit	48,750	60,983	43,928
Net Income	140,930	176,691	132,217
Parent Company
Condensed Income Statements, Captions [Line Items]
Other interest and dividends	87,781	170,741	141,982
Gain (loss) on sale of investment securities	0	93	0
Other Operating Income (Expense), Net	(24)	(46)	0
Total Income	87,757	170,788	141,982
Interest expense	4,149	9,993	11,915
Legal and professional	894	2,617	2,842
Directors compensation	643	589	500
Provision for credit losses	326	0	0
Other	14,746	1,250	1,306
Total Expenses	20,758	14,449	16,563
Income Before Income Tax Expense	66,999	156,339	125,419
Income Tax Benefit	(1,183)	(2,903)	(607)
Income (Loss) Before Equity in Undistributed Income of Subsidiaries	68,182	159,242	126,026
Equity in Undistributed Income of Subsidiaries	72,748	17,449	6,191
Net Income	$ 140,930	$ 176,691	$ 132,217