Regulatory Matters (Details 1) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Renasant Corporation
Capital and risk-based capital and leverage ratios for the Company and for Renasant Bank
Amount Included in Tier 1 Capital	$ 681,731	$ 521,124
Tier 1 Capital to Average Assets (Leverage) (percent)	9.16%	9.53%
Common Equity Tier One Risk Based Capital	$ 591,356	$ 0
Common Equity Tier One Risk Based Capital to Risk Weighted Assets	9.99%	0.00%
Tier 1 Capital to Risk -Weighted Assets, Amount	$ 681,731	$ 521,124
Tier 1 Capital to Risk - Weighted Assets (percent)	11.51%	12.45%
Total Capital to Risk - Weighted Assets, Amount	$ 729,321	$ 566,514
Total Capital to Risk - Weighted Assets (percent)	12.32%	13.54%
Renasant Bank
Capital and risk-based capital and leverage ratios for the Company and for Renasant Bank
Amount Included in Tier 1 Capital	$ 654,830	$ 503,316
Tier 1 Capital to Average Assets (Leverage) (percent)	8.82%	9.23%
Common Equity Tier One Risk Based Capital	$ 654,830	$ 0
Common Equity Tier One Risk Based Capital to Risk Weighted Assets	11.09%	0.00%
Tier 1 Capital to Risk -Weighted Assets, Amount	$ 654,830	$ 503,316
Tier 1 Capital to Risk - Weighted Assets (percent)	11.09%	12.06%
Total Capital to Risk - Weighted Assets, Amount	$ 701,591	$ 548,124
Total Capital to Risk - Weighted Assets (percent)	11.89%	13.14%