Goodwill and Other Intangible Assets (Summary of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Indefinite-lived Intangible Assets by Major Class [Line Items]
Total other intangible assets, net	$ 24,209	$ 18,811
Community banking | Core deposit intangibles
Indefinite-lived Intangible Assets by Major Class [Line Items]
Gross carrying amount	34,841	29,379
Accumulated amortization	(17,382)	(17,879)
Net carrying amount	17,459	11,500
Specialty finance | Customer list intangibles
Indefinite-lived Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,800	1,800
Accumulated amortization	(1,052)	(941)
Net carrying amount	748	859
Wealth management | Customer list and other intangibles
Indefinite-lived Intangible Assets by Major Class [Line Items]
Gross carrying amount	7,940	7,940
Accumulated amortization	(1,938)	(1,488)
Net carrying amount	$ 6,002	$ 6,452