CAPITAL AND REGULATORY MATTERS (Tables)

12 Months Ended

Dec. 31, 2016

REGULATORY MATTERS [Abstract]

Summary of Compliance with Regulatory Capital Requirements

	2016		2015
	Amount	Ratio	Amount	Ratio
	(Dollars in thousands)
Common Equity Tier 1 capital (to risk-weighted assets)
BancorpSouth, Inc.	$    1,467,979	12.23%	$    1,402,041	12.07%
BancorpSouth Bank	1,311,542	10.94	1,369,419	11.80
Tier 1 capital (to risk-weighted assets)
BancorpSouth, Inc.	1,480,867	12.34	1,425,239	12.27%
BancorpSouth Bank	1,311,542	10.94	1,369,419	11.80
Total capital (to risk-weighted assets)
BancorpSouth, Inc.	1,605,257	13.38	1,552,280	13.37
BancorpSouth Bank	1,435,932	11.97	1,496,460	12.90
Tier 1 leverage capital (to average assets)
BancorpSouth, Inc.	1,480,867	10.32	1,425,239	10.61
BancorpSouth Bank	1,311,542	9.17	1,369,419	10.23