Acquisition of a Business - Additional Information (Details) - USD ($)				6 Months Ended	12 Months Ended
	Jul. 01, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Common stock, voting par value					$ 0.01	$ 0.01
Goodwill					$ 181,705,000	$ 148,353,000	$ 148,353,000	$ 148,353,000
Salaries and employee benefits					126,979,000	118,051,000	101,222,000
Other non-interest expense					$ 10,943,000	$ 9,174,000	$ 10,531,000
Inland Bancorp, Inc.
Business Acquisition [Line Items]
Business acquisition date of agreement					Jul. 01, 2023
Number of shares purchased		2,408,992	2,408,992
Business acquisition transaction completion Date					Jun. 30, 2023
Right to receive common stock upon conversion	0.19
Common stock, voting par value	$ 0.01
Cash payment per share	$ 0.68
Consideration paid in cash	$ 21,200,000				$ 31,897,000
Common stock issued price per share	$ 18.09				$ 18.09
Issuance of common shares	5,932,323				5,932,323
Value of common stock consideration	$ 107,300,000
Options to acquire common stock shares	288,200
Option to acquire common stock value	$ 424,000
Total merger consideration	138,900,000			$ 9,900,000	$ 138,914,000
Stock issuance costs	299,000
Goodwill	$ 33,400,000				33,352,000
Inland Bancorp, Inc. | Non-interest Expense
Business Acquisition [Line Items]
Core system conversion expenses					3,500,000
Acquisition advisory expenses					2,500,000
Salaries and employee benefits					2,500,000
Other non-interest expense					$ 688,000