Core Deposit and Other Intangibles - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Jun. 12, 2015	Sep. 30, 2015	Apr. 17, 2015
Finite-Lived Intangible Assets [Line Items]
Core deposit and other intangibles reduction		$ (742)
FMIG
Finite-Lived Intangible Assets [Line Items]
Core deposit and other intangibles reduction	$ 742
Merger with C Financial Corporation
Finite-Lived Intangible Assets [Line Items]
Core deposit intangible			$ 981