Business Segments (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following tables present certain information regarding operations by reportable segment, including a reconciliation of segment results to reported consolidated results for the periods presented. Reconciling items between segment results and reported results include:

• Elimination of interest income and interest expense representing interest earned by IBERIABANK on interest-bearing checking accounts held by related companies, as well as the elimination of the related deposit balances at the IBERIABANK segment;

• Elimination of investment in subsidiary balances on certain operating segments included in total and average segment assets; and

• Elimination of intercompany due to and due from balances on certain operating segments that are included in total and average segment assets.

	Three Months Ended March 31, 2019
(in thousands)	IBERIABANK			Mortgage			LTC			Consolidated
Interest and dividend income	$	324,644		$	1,439		$	1		$	326,084
Interest expense	75,600			—			—			75,600
Net interest income	249,044			1,439			1			250,484
Provision for (reversal of) credit losses	13,823			(60		)	—			13,763
Mortgage income	—			11,849			—			11,849
Title income	—			—			5,225			5,225
Other non-interest income (expense)	35,463			(12		)	(16		)	35,435
Allocated expenses (income)	(2,033		)	1,500			533			—
Non-interest expense	143,755			10,541			4,457			158,753
Income (loss) before income tax expense	128,962			1,295			220			130,477
Income tax expense (benefit)	29,975			307			64			30,346
Net income	$	98,987		$	988		$	156		$	100,131
Total loans, leases, and loans held for sale, net of unearned income	$	22,944,800		$	151,946		$	—		$	23,096,746
Total assets	31,044,209			191,254			24,726			31,260,189
Total deposits	24,078,698			13,364			—			24,092,062
Average assets	30,660,806			148,174			24,520			30,833,500

	Three Months Ended March 31, 2018
(in thousands)	IBERIABANK			Mortgage			LTC			Consolidated
Interest and dividend income	$	268,775		$	1,767		$	1		$	270,543
Interest expense	37,654			—			—			37,654
Net interest income	231,121			1,767			1			232,889
Provision for (reversal of) credit losses	8,216			(5		)	—			8,211
Mortgage income	—			9,595			—			9,595
Title income	—			—			5,027			5,027
Other non-interest income (expense)	29,906			38			—			29,944
Allocated expenses (income)	(1,479		)	1,166			313			—
Non-interest expense	171,591			11,916			4,564			188,071
Income (loss) before income tax expense	82,699			(1,677		)	151			81,173
Income tax expense (benefit)	18,540			(410		)	(578		)	17,552
Net income (loss)	$	64,159		$	(1,267	)	$	729		$	63,621
Total loans, leases, and loans held for sale, net of unearned income	$	21,652,223		$	164,215		$	—		$	21,816,438
Total assets	29,243,983			205,497			23,157			29,472,637
Total deposits	22,959,061			12,131			—			22,971,192
Average assets	27,924,587			185,742			21,890			28,132,219