Allowance for Loan Losses Allowance Text (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance	$ 78,500	$ 75,838	$ 76,371	$ 84,057
Loans and Leases Receivable, Net of Deferred Income	$ 5,719,212	$ 5,269,936