Premises and Equipment Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 19,372
Operating Leases, Future Minimum Payments, Due in Two Years	16,098
Operating Leases, Future Minimum Payments, Due in Three Years	14,998
Operating Leases, Future Minimum Payments, Due in Four Years	13,932
Operating Leases, Future Minimum Payments, Due in Five Years	13,400
Operating Leases, Future Minimum Payments, Due Thereafter	59,090
Operating Leases, Future Minimum Payments Due	$ 136,890