Business Segments (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

	Three Months Ended September 30, 2015
(Dollars in thousands)	IBERIABANK			IMC		LTC		Consolidated
Interest and dividend income	$	169,005		$	2,071	$	1	$	171,077
Interest expense	15,109			851		—		15,960
Net interest income	153,896			1,220		1		155,117
Provision for loan losses	5,062			—		—		5,062
Mortgage income	365			20,365		—		20,730
Title revenue	—			—		6,627		6,627
Other non-interest income	30,120			1		—		30,121
Allocated expenses	(3,518		)	2,693		825		—
Non-interest expense	124,909			15,605		4,454		144,968
Income before income tax expense	57,928			3,288		1,349		62,565
Income tax expense	18,253			1,306		531		20,090
Net income	$	39,675		$	1,982	$	818	$	42,475
Total loans and loans held for sale	$	14,094,936		$	224,251	$	—	$	14,319,187
Total assets	19,242,690			264,914		26,621		19,534,225
Total deposits	16,293,681			9,384		—		16,303,065
Average assets	19,321,164			256,897		26,009		19,604,070

	Three Months Ended September 30, 2014
(Dollars in thousands)	IBERIABANK			IMC			LTC			Consolidated
Interest and dividend income	$	131,987		$	1,805		$	1		$	133,793
Interest expense	11,416			626			—			12,042
Net interest income	120,571			1,179			1			121,751
Provision for loan losses	5,621			93			—			5,714
Mortgage income	(4		)	14,267			—			14,263
Title revenue	—			—			5,577			5,577
Other non-interest income	27,310			(36		)	(2		)	27,272
Allocated expenses	(2,386		)	1,697			689			—
Non-interest expense	104,172			11,624			4,316			120,112
Income before income tax expense	40,470			1,996			571			43,037
Income tax expense	11,128			785			231			12,144
Net income	$	29,342		$	1,211		$	340		$	30,893
Total loans and loans held for sale	$	11,057,497		$	171,920		$	—		$	11,229,417
Total assets	15,288,142			200,778			25,529			15,514,449
Total deposits	12,371,522			6,169			—			12,377,691
Average assets	15,240,567			210,345			25,296			15,476,208

	Nine Months Ended September 30, 2015
(Dollars in thousands)	IBERIABANK			IMC			LTC			Consolidated
Interest and dividend income	$	464,775		$	5,430		$	2		$	470,207
Interest expense	41,410			2,199			—			43,609
Net interest income	423,365			3,231			2			426,598
Provision for loan losses	19,197			—			—			19,197
Mortgage income	932			63,067			—			63,999
Title revenue	—			—			17,402			17,402
Other non-interest income	86,498			(2		)	(7		)	86,489
Allocated expenses	(11,603		)	8,685			2,918			—
Non-interest expense	373,948			44,259			13,123			431,330
Income before income tax expense	129,253			13,352			1,356			143,961
Income tax expense	39,695			5,286			543			45,524
Net income	$	89,558		$	8,066		$	813		$	98,437
Total loans and loans held for sale	$	14,094,936		$	224,251		$	—		$	14,319,187
Total assets	19,242,690			264,914			26,621			19,534,225
Total deposits	16,293,681			9,384			—			16,303,065
Average assets	17,760,033			230,379			25,268			18,015,680

	Nine Months Ended September 30, 2014
(Dollars in thousands)	IBERIABANK			IMC			LTC			Consolidated
Interest and dividend income	$	362,974		$	4,563		$	2		$	367,539
Interest expense	30,784			1,323			—			32,107
Net interest income	332,190			3,240			2			335,432
Provision for loan losses	12,481			84			—			12,565
Mortgage income	80			38,070			—			38,150
Title revenue	—			—			15,007			15,007
Other non-interest income	73,459			(60		)	(2		)	73,397
Allocated expenses	(9,110		)	6,432			2,678			—
Non-interest expense	308,515			33,558			12,406			354,479
Income (loss) before income tax expense	93,843			1,176			(77		)	94,942
Income tax expense (benefit)	25,038			473			(14		)	25,497
Net income (loss)	$	68,805		$	703		$	(63	)	$	69,445
Total loans and loans held for sale	$	11,057,497		$	171,920		$	—		$	11,229,417
Total assets	15,288,142			200,778			25,529			15,514,449
Total deposits	12,371,522			6,169			—			12,377,691
Average assets	14,097,954			177,995			25,003			14,300,952