Allowance for Loan and Lease Loss and Credit Quality (Loans and Leases Sold) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Non Covered Loans Sold [Line Items]
Total	$ 341,352	$ 60,298
Non-owner Occupied Term [Member]
Non Covered Loans Sold [Line Items]
Total	15,500	4,039
Owner Occupied Term [Member]
Non Covered Loans Sold [Line Items]
Total	87,385	3,738
Multifamily [Member]
Non Covered Loans Sold [Line Items]
Total	60,508	0
Construction & Development [Member]
Non Covered Loans Sold [Line Items]
Total	566	3,515
Residential Development [Member]
Non Covered Loans Sold [Line Items]
Total	800	363
Term [Member]
Non Covered Loans Sold [Line Items]
Total	30,497	47,635
LOC & Other [Member]
Non Covered Loans Sold [Line Items]
Total	6,061	0
Mortgage [Member]
Non Covered Loans Sold [Line Items]
Total	108,246	1,008
Home Equity Loans & Lines [Member]
Non Covered Loans Sold [Line Items]
Total	24,445	0
Consumer & Other [Member]
Non Covered Loans Sold [Line Items]
Total	$ 7,344	$ 0