Loans and Leases (Details 8) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Purchased Credit Impaired Loans Composition [Line Items]
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 96,900	$ 129,000	$ 1,600,000
Loans and Leases Receivable, Allowance	115,111,000	84,455,000
Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	240,664,000	340,639,000
Loan Discounts	(51,619,000)	(49,848,000)
Loans and Leases Receivable, Allowance, Covered	(9,577,000)	(13,999,000)	$ (21,793,000)
Loans and Leases Receivable, Net Reported Amount, Covered	179,468,000	276,792,000
Loans held for investment, net	189,045,000	290,791,000
Loans and Leases Receivable, Allowance	9,577,000	13,999,000
Mortgages [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	207,170,000	299,660,000
Real Estate Construction [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	2,534,000	7,743,000
Commercial Portfolio Segment [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	30,658,000	32,904,000
Consumer Portfolio Segment [Member] | Purchased Credit Impaired Loans and Leases [Member]
Purchased Credit Impaired Loans Composition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	$ 302,000	$ 332,000