Significant Accounting Policies (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) Center segment	Dec. 31, 2021 USD ($)
Nature of Operations
Total Assets	$ 12,356,433	$ 12,859,689
Number of Operating Segments | segment	3
Number of Banking Centers Consolidated | Center	58
COVID-19
Covid 19, Payroll Assistance	$ 1,100,000
PPP Loans
COVID-19
PPP loans outstanding	7,800	76,900
PPP loans outstanding, amortized cost	$ 7,600	$ 75,000