Allowance for Loan Losses (Schedule of Credit Losses Related to Covered Financing Receivables, Current Period) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Provision/(recapture) for loan losses	$ 7,809	$ 8,248
Covered impaired loan
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of the period	44,679	40,496
Net provision/(recapture) of loan losses before benefit attributable to FDIC loss share agreements	1,537	4,225
Net (benefit)/recapture attributable to FDIC loss share agreements	(269)	(4,227)
Provision/(recapture) for loan losses	1,268	(2)
Increase/(decrease) in loss share receivable	269	4,227
Charge-offs	(1,617)	(3,207)
Balance at end of the period	$ 44,599	$ 41,514