Other Borrowings - Summary of Terms of Outstanding Junior Subordinated Debentures (Details) - Trust Preferred Securities - Junior Subordinated Debentures	3 Months Ended
	Mar. 31, 2023 USD ($)
Debt Instrument [Line Items]
Issuance Amount	$ 136,643,000
Bridgeview Statutory Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 15,464,000
Rate	8.41%
Bridgeview Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	3.58%
Bridgeview Capital Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 15,464,000
Rate	8.18%
Bridgeview Capital Trust II | LIBOR
Debt Instrument [Line Items]
Variable rate	3.35%
First Midwest Capital Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 37,825,000
Rate	6.95%
First Midwest Capital Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	6.95%
St. Joseph Capital Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 5,155,000
Rate	6.66%
St. Joseph Capital Trust II | LIBOR
Debt Instrument [Line Items]
Variable rate	1.75%
Northern States Statutory Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 10,310,000
Rate	6.67%
Northern States Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	1.80%
Anchor Capital Trust III
Debt Instrument [Line Items]
Issuance Amount	$ 5,000,000
Rate	6.71%
Anchor Capital Trust III | LIBOR
Debt Instrument [Line Items]
Variable rate	1.55%
Great Lakes Statutory Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 6,186,000
Rate	6.27%
Great Lakes Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Variable rate	1.40%
Home Federal Statutory    Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 15,464,000
Rate	6.52%
Home Federal Statutory    Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	1.65%
Monroe Bancorp Capital    Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 3,093,000
Rate	6.43%
Monroe Bancorp Capital    Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	1.60%
Tower Capital Trust 3
Debt Instrument [Line Items]
Issuance Amount	$ 9,279,000
Rate	6.65%
Tower Capital Trust 3 | LIBOR
Debt Instrument [Line Items]
Variable rate	1.69%
Monroe Bancorp Statutory    Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 5,155,000
Rate	6.47%
Monroe Bancorp Statutory    Trust II | LIBOR
Debt Instrument [Line Items]
Variable rate	1.60%
Great Lakes Statutory Trust III
Debt Instrument [Line Items]
Issuance Amount	$ 8,248,000
Rate	6.57%
Great Lakes Statutory Trust III | LIBOR
Debt Instrument [Line Items]
Variable rate	1.70%