Employee Benefit and Deferred Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2017

Retirement Benefits [Abstract]

Plan expense for non-contributory benefit pension plan and post-retirement health and life plans

The plan expense for the legacy Renasant defined benefit pension plan (“Pension Benefits - Renasant”), the assumed HeritageBank defined pension plan (“Pension Benefits - HeritageBank”) and post-retirement health and life plans (“Other Benefits”) for the periods presented was as follows:

	Pension Benefits						Pension Benefits
	Renasant						HeritageBank					Other Benefits
	Three Months Ended						Three Months Ended					Three Months Ended
	September 30,						September 30,					September 30,
	2017			2016			2017		2016			2017		2016
Service cost	$	—		$	—		$	—	$	—		$	2	$	1
Interest cost	292			304			—		34			11		14
Expected return on plan assets	(485		)	(468		)	—		(23		)	—		—
Recognized actuarial loss	101			101			—		—			2		23
Settlement/curtailment/termination gains	—			—			—		(780		)	—		—
Net periodic benefit (return) cost	$	(92	)	$	(63	)	$	—	$	(769	)	$	15	$	38

	Pension Benefits						Pension Benefits
	Renasant						HeritageBank					Other Benefits
	Nine Months Ended						Nine Months Ended					Nine Months Ended
	September 30,						September 30,					September 30,
	2017			2016			2017		2016			2017		2016
Service cost	$	—		$	—		$	—	$	—		$	6	$	9
Interest cost	876			912			—		172			32		43
Expected return on plan assets	(1,456		)	(1,404		)	—		(113		)	—		—
Recognized actuarial loss	301			303			—		—			5		57
Settlement/curtailment/termination gains	—			—			—		(780		)	—		—
Net periodic benefit (return) cost	$	(279	)	$	(189	)	$	—	$	(721	)	$	43	$	109

Summary of the changes in stock options and restricted stock

The following table summarizes the changes in stock options as of and for the nine months ended September 30, 2017:

	Shares		Weighted Average Exercise Price
Options outstanding at beginning of period	185,625		$	15.97
Granted	—		—
Exercised	(93,625	)	16.22
Forfeited	—		—
Options outstanding at end of period	92,000		$	15.72

The following table summarizes the changes in restricted stock as of and for the nine months ended September 30, 2017:

	Performance-Based Restricted Stock		Weighted Average Grant-Date Fair Value		Time- Based Restricted Stock		Weighted Average Grant-Date Fair Value
Nonvested at beginning of period	—		$	—	117,345		$	31.76
Awarded	54,450		42.22		153,270		42.81
Vested	—		—		(43,305	)	32.36
Cancelled	(2,000	)	42.22		(5,460	)	37.74
Nonvested at end of period	52,450		$	42.22	221,850		$	39.13