Condensed Financial Statements of Parent Company, Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets [Abstract]
Cash and cash equivalents	$ 588,257	$ 715,460
Other assets	89,812	84,796
TOTAL ASSETS	5,327,399	5,177,720
Liabilities and shareholders' equity [Abstract]
Subordinated debentures	10,310	10,310
Shareholders' equity	485,308	463,136	$ 423,665	$ 369,296
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	5,327,399	5,177,720
Parent Company [Member]
Assets [Abstract]
Cash and cash equivalents	1,582	1,535
Investment in subsidiaries	495,019	472,573
Other assets	304	241
TOTAL ASSETS	496,905	474,349
Liabilities and shareholders' equity [Abstract]
Subordinated debentures	10,310	10,310
Other liabilities	1,287	903
Shareholders' equity	485,308	463,136
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 496,905	$ 474,349