Fair Value Measurements (Details 4) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	$ (12,909)	$ (9,316)
Non Purchased Credit Impaired Loans and Leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	$ (12,909)	(9,192)
Other real estate and foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets		$ (124)