Business Combinations - Pro Forma Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Provision for credit losses	$ 9,747	$ 1,500	$ 34,291	$ (5,450)
Interest Income (Expense), after Provision for Loan Loss, Total	203,105	177,331	394,148	345,591
Total noninterest income	60,585	58,391	112,339	113,647
Total noninterest expenses	168,018	149,730	327,636	295,708
Income Before Income Taxes	95,672	85,992	178,851	163,530
Income tax expense	$ 16,065	$ 16,003	30,931	29,253
Prudential | Pro Forma
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net interest income			428,439	357,410
Provision for credit losses			34,291	(225)
Interest Income (Expense), after Provision for Loan Loss, Total			394,148	357,635
Total noninterest income			112,339	118,571
Total noninterest expenses			327,636	324,182
Income Before Income Taxes			178,851	152,024
Income tax expense			30,931	26,468
Net Income			$ 147,920	$ 125,556