Short Term Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Short-term Debt [Line Items]
Other Short-term Borrowings	$ 227,342	$ 213,786
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months	0	25,000
Short-term Debt, Total	$ 227,342	$ 238,786
Average interest rate on FHLB swap	3.62%	2.69%
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 7,141,891	$ 6,871,122	$ 7,177,785
Debt Securities, Available-for-sale, Amortized Cost	1,854,852	1,727,363
Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,832,000	1,749,000
Debt Securities, Available-for-sale, Amortized Cost	7,200	9,500
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term Debt, Total	227,342	213,786
Short-term Debt, Maximum Month-end Outstanding Amount	227,342	297,118
Short-term Debt, Average Outstanding Amount	$ 199,813	$ 261,967
Short-term Debt, Weighted Average Interest Rate, at Point in Time	1.39%	0.03%
Short-term Debt, Weighted Average Interest Rate, over Time	0.57%	0.04%
Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Short-term Debt, Total	$ 0	$ 25,000
Short-term Debt, Maximum Month-end Outstanding Amount	25,000	25,000
Short-term Debt, Average Outstanding Amount	$ 7,195	$ 25,025
Short-term Debt, Weighted Average Interest Rate, at Point in Time	0.00%	0.23%
Short-term Debt, Weighted Average Interest Rate, over Time	0.04%	0.23%