Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amount of Goodwill

Changes to the carrying amount of goodwill by reporting unit for the three months ended March 31, 2016, and the year ended December 31, 2015 are provided in the following table.

(Dollars in thousands)	IBERIABANK		IMC		LTC		Total
Balance, December 31, 2014	$	489,183	$	23,178	$	5,165	$	517,526
Goodwill acquired during the year	207,077		—		—		207,077
Balance, December 31, 2015	$	696,260	$	23,178	$	5,165	$	724,603
Goodwill adjustments during the period	4,985		—		—		4,985
Balance, March 31, 2016	$	701,245	$	23,178	$	5,165	$	729,588

Schedule of Definite-Lived Intangible Assets

Definite-lived intangible assets had the following carrying values included in “other assets” on the Company’s consolidated balance sheets as of the periods indicated:

	March 31, 2016							December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
(Dollars in thousands)
Core deposit intangibles	$	74,001	$	(46,017	)	$	27,984	$	74,001	$	(43,957	)	$	30,044
Customer relationship intangible asset	1,348		(946		)	402		1,348		(984		)	364
Non-compete agreement	112		(104		)	8		100		(79		)	21
Other intangible assets	—		—			—		205		(114		)	91
Total	$	75,461	$	(47,067	)	$	28,394	$	75,654	$	(45,134	)	$	30,520

Mortgage servicing rights had the following carrying values as of the periods indicated:

	March 31, 2016							December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
(Dollars in thousands)
Mortgage servicing rights	$	6,034	$	(2,529	)	$	3,505	$	6,104	$	(2,320	)	$	3,784