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Other Borrowings - Summary of Terms of Outstanding Junior Subordinated Debentures (Details) - Trust Preferred Securities - Junior Subordinated Debentures	3 Months Ended
	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Issuance Amount	$ 136,643,000
Bridgeview Statutory Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 15,464,000
Rate	9.15%
Bridgeview Statutory Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	3.58%
Bridgeview Capital Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 15,464,000
Rate	8.93%
Bridgeview Capital Trust II | Secured Overnight Financing Rate (SOFR)
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%
Fixed rates	6.95%
St. Joseph Capital Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 5,155,000
Rate	7.34%
St. Joseph Capital Trust II | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.75%
Northern States Statutory Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 10,310,000
Rate	7.39%
Northern States Statutory Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.80%
Anchor Capital Trust III
Debt Instrument [Line Items]
Issuance Amount	$ 5,000,000
Rate	7.11%
Anchor Capital Trust III | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.55%
Great Lakes Statutory Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 6,186,000
Rate	6.99%
Great Lakes Statutory Trust II | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.40%
Home Federal Statutory    Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 15,464,000
Rate	7.24%
Home Federal Statutory    Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.65%
Monroe Bancorp Capital    Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 3,093,000
Rate	7.18%
Monroe Bancorp Capital    Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.60%
Tower Capital Trust 3
Debt Instrument [Line Items]
Issuance Amount	$ 9,279,000
Rate	7.29%
Tower Capital Trust 3 | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.69%
Monroe Bancorp Statutory    Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 5,155,000
Rate	7.19%
Monroe Bancorp Statutory    Trust II | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.60%
Great Lakes Statutory Trust III
Debt Instrument [Line Items]
Issuance Amount	$ 8,248,000
Rate	7.29%
Great Lakes Statutory Trust III | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	1.70%

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