v3.5.0.2
Allowance for Loan Losses - Risk Category of Loans by Class of Loans (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Accounts Notes And Loans Receivable [Line Items]    
Total loans $ 2,306,371 $ 1,765,469
Residential Properties    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 1,563,807 1,160,568
Commercial Real Estate    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 459,703 358,791
Commercial and Industrial Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 228,579 196,584
Consumer Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 34,248 37,206
Land and Construction    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 20,034 12,320
Pass    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 2,274,507 1,740,082
Pass | Residential Properties    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 1,556,117 1,159,029
Pass | Commercial Real Estate    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 456,548 351,988
Pass | Commercial and Industrial Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 207,574 180,755
Pass | Consumer Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 34,234 37,130
Pass | Land and Construction    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 20,034 11,180
Special Mention    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 5,759 6,690
Special Mention | Residential Properties    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 3,846 1,539
Special Mention | Commercial Real Estate    
Accounts Notes And Loans Receivable [Line Items]    
Total loans   174
Special Mention | Commercial and Industrial Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 1,913 4,977
Substandard    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 18,407 6,659
Substandard | Commercial Real Estate    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 1,968 354
Substandard | Commercial and Industrial Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 16,439 5,165
Substandard | Land and Construction    
Accounts Notes And Loans Receivable [Line Items]    
Total loans   1,140
Impaired    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 7,698 12,038
Impaired | Residential Properties    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 3,844  
Impaired | Commercial Real Estate    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 1,187 6,275
Impaired | Commercial and Industrial Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans 2,653 5,687
Impaired | Consumer Loans    
Accounts Notes And Loans Receivable [Line Items]    
Total loans $ 14 $ 76