Income Taxes, Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Tax Assets [Abstract]
Allowance for Credit Losses	$ 17,529	$ 14,944
Accrued Liabilities	8,614	8,184
Deferred Compensation	11,586	10,006
State Franchise Tax	1,549	1,521
Interest on Non-Accrual Loans	46	2
ORE Writedown and Holding Costs	1,547	1,724
Low-Income Housing Investment	73	58
Total Deferred Tax Assets	40,944	36,439
Deferred Tax Liabilities [Abstract]
Premises and Equipment	(869)	(286)
Securities Accretion	(310)	(298)
Unrealized Gain on Securities Available-for-Sale	(432)	(1,838)
Leasing Activities	(11,469)	(7,018)
Other	(744)	(786)
Total Deferred Tax Liabilities	(13,824)	(10,226)
Net Deferred Tax Assets	$ 27,120	$ 26,213