Acquisitions - NS Leasing LLC Summary (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 01, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and due from banks		$ 114,073		$ 74,354
Liabilities
Goodwill		303,651		$ 264,193		$ 171,260
Noninterest expense		$ 51,629	$ 37,987
North Star Leasing
Business Acquisition [Line Items]
Total consideration	$ 118,846
Assets
Cash and due from banks	216
Net leases	82,833
Bank premises and equipment	470
Other intangible assets	14,009
Other assets	1,225
Total assets	98,753
Liabilities
Accrued expenses and other liabilities	4,627
Total liabilities	4,627
Net assets	94,126
Goodwill	24,720
Contingent consideration liability	2,300				$ 3,000
Noninterest expense	$ 700