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Loans and Leases - Narrative (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2018
USD ($)
contract
Home equity loans and lines  
Loans and Leases Receivable Disclosure [Line Items]  
Home equity loan, number of contracts | contract 1
Home equity line of credit principal balance | $ $ 25
Leases  
Loans and Leases Receivable Disclosure [Line Items]  
Home equity loan, number of contracts | contract 1
Home equity line of credit principal balance | $ $ 50