Parent Corporation Only Financial Statements (Details) - Condensed Statements of Condition - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and cash equivalents	$ 54,352	$ 63,637
Investment securities	534,507	487,955
Equity securities	13,794	13,387
Other assets	50,417	88,458
Total assets	8,129,480	7,547,339
LIABILITIES AND STOCKHOLDERS' EQUITY
Other liabilities	38,754	26,177
Subordinated debentures, net	152,951	202,648
Stockholders' equity	1,124,212	915,310
Total liabilities and stockholders' equity	8,129,480	7,547,339
Parent Company [Member]
ASSETS
Cash and cash equivalents	133,648	34,388
Investment in subsidiaries	1,111,520	1,001,998
Investment securities	32,405	32,405
Equity securities	725
Other assets	699	51,288
Total assets	1,278,997	1,120,079
LIABILITIES AND STOCKHOLDERS' EQUITY
Other liabilities	1,834	2,121
Subordinated debentures, net	152,951	202,648
Stockholders' equity	1,124,212	915,310
Total liabilities and stockholders' equity	$ 1,278,997	$ 1,120,079