Summary of Significant Accounting Policies - Additional Information (Detail)		3 Months Ended
	Jan. 18, 2024 USD ($) $ / shares	Mar. 31, 2024 Integer	May 19, 2023	May 03, 2007 Branches
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Entity incorporation date of incorporation		Mar. 05, 2007
State in which the entity was incorporated		NJ
Year of incorporation		2007
Operations commencement date		Apr. 23, 2007
Number of branches owned by the entity | Branches				29
Number of employees | Integer		211
Number of full time employees | Integer		209
Noah Bank [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage of outstanding common stock acquired			100.00%
Cornerstone Financial Corporation [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
Business combination consideration transferred | $	$ 17,900,000
Business acquisition stock conversion ratio	0.24
Business acquisition, share price | $ / shares	$ 8.16
Share price | $ / shares	$ 34
Preferred stock, value, outstanding | $	$ 1,000
New Jersey State Chartered Banking Institution [Member]
Description Of Organization And Summary Of Significant Accounting Policies [Line Items]
State in which the entity was incorporated		NJ