Parent Company Financial Statements (Statement of Income) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income:
Total revenues	[1]	$ 228,829	$ 226,886	$ 200,494
Expenses:
Interest on junior subordinated debentures		370	641	980
Legal and professional fees		2,859	3,747	2,535
Income tax expense		21,317	19,331	19,061
Net income		76,870	69,829	69,118
Parent Company [Member]
Income:
Other Income		(102)	0	0
Total revenues		45,641	43,156	36,823
Expenses:
Interest on junior subordinated debentures		370	641	980
Legal and professional fees		217	210	147
Other expenses		405	349	337
Total expenses		992	1,200	1,464
Income before income taxes		44,649	41,956	35,359
Income tax expense		230	248	301
Income before equity in undistributed earnings (losses) of subsidiaries		44,879	42,204	35,660
Net income		76,870	69,829	69,118
Bank [Member]
Income:
Dividends from subsidiaries		45,732	43,139	36,796
Expenses:
Equity in undistributed earnings (losses) of subsidiaries		32,045	27,603	33,445
Non-bank [Member]
Income:
Dividends from subsidiaries		11	17	27
Expenses:
Equity in undistributed earnings (losses) of subsidiaries		$ (54)	$ 22	$ 13

[1] As reported in the Consolidated Statements of Income.