Loans and Allowance - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
Receivables [Abstract] | ||||||||||||
Loans held for sale | $ 7,216 | $ 2,929 | $ 7,216 | $ 2,929 | ||||||||
Allowance for loan losses | 75,032 | 66,037 | 75,032 | 66,037 | $ 62,453 | $ 63,964 | ||||||
Increase in allowance for loan losses | 8,995 | |||||||||||
Net charge offs | 148 | |||||||||||
Increase in net charge offs | 1,925 | |||||||||||
Provision for loan losses | 1,800 | $ 2,083 | $ 2,875 | $ 2,385 | 2,417 | $ 1,900 | $ 790 | $ 550 | 9,143 | 5,657 | 417 | |
Increase in provision for loan losses | $ 3,486 | |||||||||||
Commercial and farmland | ||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||||
Percentage of troubled debt restructured loans | 40.00% | |||||||||||
Residential | ||||||||||||
Receivables [Abstract] | ||||||||||||
Allowance for loan losses | 13,537 | 11,755 | $ 13,537 | 11,755 | 11,139 | $ 13,152 | ||||||
Provision for loan losses | 2,391 | 1,515 | $ 310 | |||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||||
Mortgage loans for which formal foreclosure proceedings are in process | $ 2,302 | $ 1,530 | $ 2,302 | $ 1,530 |