Business Combinations - Supplemental Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021
1st Constitution Actual from Acquisition to September 30, 2022
Net interest income	$ 36,980
Provision (benefit) for credit losses	42
Noninterest income	10,311
Noninterest expense	22,980
Net income	$ 18,348
Fully diluted (in usd per share)	$ 0.28
Net interest income		$ 233,381	$ 219,976
Provision (benefit) for credit losses		11,274	(8,704)
Noninterest income		20,774	28,213
Noninterest expense		145,871	138,667
Net income		$ 73,086	$ 87,576
Fully diluted (in usd per share)		$ 1.13	$ 1.43