Parent Company Only Financial Information - Condensed Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash and due from banks	$ 151,754	$ 81,723
Goodwill	17,636	17,636
Other assets	179,084	148,989
Total assets	8,422,946	8,045,911
Subordinated debentures	186,965	122,885
Other liabilities	161,349	111,139
Total liabilities	7,745,789	7,366,283
Common stock	341	341
Additional paid-in capital	264,332	263,375
Treasury stock, at average cost (4,611,232 shares and 3,561,270 shares at December 31, 2022 and 2021, respectively)	(98,535)	(75,293)
Retained earnings	547,507	497,889
Accumulated other comprehensive loss, net of taxes	(36,488)	(6,684)
Total stockholders' equity	677,157	679,628	$ 618,997	$ 579,672
Total liabilities and stockholders' equity	8,422,946	8,045,911
Holding Company
Cash and due from banks	22,723	16,038
Other securities	1,516	1,695
Investment in Bank	890,828	843,866
Goodwill	2,185	2,185
Other assets	3,681	2,791
Total assets	920,933	866,575
Subordinated debentures	186,965	122,885
Junior subordinated debentures, at fair value	50,507	56,472
Other liabilities	6,304	7,590
Total liabilities	243,776	186,947
Common stock	341	341
Additional paid-in capital	264,332	263,375
Treasury stock, at average cost (4,611,232 shares and 3,561,270 shares at December 31, 2022 and 2021, respectively)	(98,535)	(75,293)
Retained earnings	547,507	497,889
Accumulated other comprehensive loss, net of taxes	(36,488)	(6,684)
Total stockholders' equity	677,157	679,628
Total liabilities and stockholders' equity	$ 920,933	$ 866,575