Employee Benefit and Deferred Compensation Plans (Details 4) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Pension Benefits Renasant
Estimated costs that will be amortized from accumulated other comprehensive income into net periodic cost
Prior service cost	$ 0
Actuarial loss	400
Total	400
Other Benefits
Estimated costs that will be amortized from accumulated other comprehensive income into net periodic cost
Prior service cost	0
Actuarial loss	68
Total	68
HeritageBank | Pension Benefits Renasant
Estimated costs that will be amortized from accumulated other comprehensive income into net periodic cost
Prior service cost	0
Actuarial loss	0
Total	$ 0