Renasant Corporation (Parent Company Only) Condensed Financial Information (Details) - USD ($) $ in Thousands		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents		$ 211,571		$ 161,583		$ 246,648	$ 132,420
Other assets		327,080		230,533
Total assets		7,926,496		5,805,129		5,746,270
Liabilities and shareholders’ equity
Other liabilities		100,580		66,235
Total shareholders’ equity		1,036,818		711,651		665,652	498,208
Total liabilities and shareholders’ equity		7,926,496		5,805,129
Cash collateral		1,970
Renasant Corporation
Assets
Cash and cash equivalents		11,107	[1]	9,968	[1]	$ 9,723	$ 3,883
Investments		9,711		8,050
Investment in bank subsidiary	[2]	1,101,580		786,125
Accrued interest receivable on bank balances	[2]	5		5
Intercompany receivable	[2]	2,450		(577)
Other assets		10,560		5,945
Total assets		1,135,413		809,516
Liabilities and shareholders’ equity
Junior subordinated debentures		95,095		94,574
Other liabilities		3,500		3,291
Total shareholders’ equity		1,036,818		711,651
Total liabilities and shareholders’ equity		$ 1,135,413		$ 809,516

[1] Eliminates in consolidation, except for $1,970 which is pledged as collateral and held at a non-subsidiary bank.

[2] Eliminates in consolidation