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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Non-accrual Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Impaired
Non-accrual loans and leases	$ 25,712	$ 22,298
Foreclosed properties, net	1,527	1,677
Total non-performing assets	27,239	23,975
Performing troubled debt restructurings	732	1,735
Total impaired assets	$ 27,971	$ 25,710
Total non-accrual loans and leases to gross loans and leases	1.76%	1.56%
Total non-performing assets to total gross loans and leases plus foreclosed properties, net	1.86%	1.67%
Total non-performing assets to total assets	1.54%	1.35%
Allowance for loan and lease losses to gross loans and leases	1.37%	1.14%
Allowance for loan and lease losses to non-accrual loans and leases	78.05%	73.17%
Commercial real estate — owner occupied
Financing Receivable, Impaired
Non-accrual loans and leases	$ 4,538	$ 2,907
Commercial real estate — non-owner occupied
Financing Receivable, Impaired
Non-accrual loans and leases	1,907	1,678
Land development
Financing Receivable, Impaired
Non-accrual loans and leases	3,662	4,393
Construction
Financing Receivable, Impaired
Non-accrual loans and leases	2,953	397
Multi-family
Financing Receivable, Impaired
Non-accrual loans and leases	0	2
1-4 family
Financing Receivable, Impaired
Non-accrual loans and leases	2,119	2,550
Total non-accrual commercial real estate
Financing Receivable, Impaired
Non-accrual loans and leases	$ 15,179	$ 11,927
Allowance for loan and lease losses to gross loans and leases	1.36%	1.24%
Commercial and industrial
Financing Receivable, Impaired
Non-accrual loans and leases	$ 9,969	$ 9,136
Direct financing leases, net
Financing Receivable, Impaired
Non-accrual loans and leases	0	38
Home equity and second mortgages
Financing Receivable, Impaired
Non-accrual loans and leases	173	542
Other
Financing Receivable, Impaired
Non-accrual loans and leases	391	655
Total non-accrual consumer and other loans
Financing Receivable, Impaired
Non-accrual loans and leases	$ 564	$ 1,197
Allowance for loan and lease losses to gross loans and leases	2.64%	2.89%

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-Publisher FASB
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