Acquisitions - Schedule of Purchase Price of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 17, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets
Goodwill		$ 155,211	$ 154,572	$ 151,238
Liabilities
Net cash received		$ 0	$ (622,179)	$ 0
TCF National Bank
Assets
Cash and due from banks	$ 4,012
Commercial	101,327
Residential mortgage	56,499
Consumer	54,212
Total loans	212,038
Premises and equipment, net	6,901
Goodwill	3,973
Core deposit intangible	1,630
Interest receivable	519
Other assets	463
Total assets purchased	229,536
Liabilities
Non-interest bearing	181,403
NOW accounts	303,050
Savings and money market	262,488
Certificates of deposit	99,468
Total deposits	846,409
Interest payable	16
Other liabilities	1,278
Total liabilities assumed	847,703
Net cash received	$ (618,167)