Right-Of-Use Lease Assets and Lease Liabilities - Lease Expense and Supplemental Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Right-of-use lease assets	$ 52,912	$ 48,855
Lease liabilities	$ 53,533	$ 49,321
Weighted average remaining lease term	8 years 5 months 4 days	7 years 11 months 15 days
Weighted average discount rate	1.75%	2.00%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Premises and equipment	Premises and equipment
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued interest and other liabilities	Accrued interest and other liabilities