Parent Company Financial Statements (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Securities Available-for-Sale, at Fair Value	$ 740,994	$ 709,786
Other Assets	30,451	25,917
TOTAL ASSETS	3,144,360	2,955,994	$ 2,373,701
LIABILITIES
Borrowings	275,216	258,114
TOTAL LIABILITIES	2,779,789	2,625,727
SHAREHOLDERS’ EQUITY
Common Stock	22,934	15,261
Additional Paid-in Capital	165,288	171,744
Retained Earnings	178,969	149,666
Accumulated Other Comprehensive Income (Loss)	(2,620)	(6,404)
TOTAL SHAREHOLDERS’ EQUITY	364,571	330,267	$ 252,348	$ 228,824
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	3,144,360	2,955,994
Parent Company
ASSETS
Cash	24,777	10,217
Securities Available-for-Sale, at Fair Value	353	353
Investment in Subsidiary Bank	342,054	322,138
Investment in Non-banking Subsidiaries	5,050	4,673
Other Assets	8,906	9,577
TOTAL ASSETS	381,140	346,958
LIABILITIES
Borrowings	11,231	10,975
Other Liabilities	5,338	5,716
TOTAL LIABILITIES	16,569	16,691
SHAREHOLDERS’ EQUITY
Common Stock	22,934	15,261
Additional Paid-in Capital	165,288	171,744
Retained Earnings	178,969	149,666
Accumulated Other Comprehensive Income (Loss)	(2,620)	(6,404)
TOTAL SHAREHOLDERS’ EQUITY	364,571	330,267
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 381,140	$ 346,958