Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Class of Stock [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned		$ 35,972
Transferred Loans to OREO	$ 5,380	4,797
Transferred Loans to Mortgage Servicing Assets	2,709	$ 2,005
Transfer of Portfolio Loans and Leases to Held-for-sale	10,619
Land and buildings transferred to other assets	$ 1,805
Class A Common Stock
Class of Stock [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		1,378,230