Loans and Allowance for Loan and Lease Losses (Schedule of Pre-tax Impact of Sales on Covered Commercial and Consumer Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain (loss) on sale of covered loans	$ 9,288	$ 3,667	$ 26,711	$ 22,595
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash proceeds, net of transaction costs				101,023
Carrying value of loans transferred to loans held for sale				86,521
Provision for loan losses recorded upon transfer to loans held for sale				3,469
Recorded investment in loans sold				83,052
Gain (loss) on sale of covered loans				17,971
Gain (Loss) on indemnification asset from covered loans sold				$ (2,085)