Variable Interest Entities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Classification of carrying amount of assets and liabilities of VIE [Abstract]
Proceeds from issuance of subordinated debt	$ 82,500
Maximum Loss Exposure
Liability Recognized
Low Income Housing Partnerships [Member] | Other Assets [Member]
Classification of carrying amount of assets and liabilities of VIE [Abstract]
Maximum Loss Exposure	$ 13,889	$ 10,769
Liability Recognized	$ 0	$ 0
Trust Preferred Issuances [Member] | Subordinated Debt [Member]
Classification of carrying amount of assets and liabilities of VIE [Abstract]
Maximum Loss Exposure
Liability Recognized	$ 82,476	$ 82,476
Commercial Troubled Debt Restructurings [Member] | Loans [Member]
Classification of carrying amount of assets and liabilities of VIE [Abstract]
Maximum Loss Exposure	4,368	3,773
Liability Recognized	$ 0	$ 0