Business Segments (Tables)

3 Months Ended

Mar. 31, 2020

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, 2020
(in thousands)	IBERIABANK			Mortgage		LTC		Consolidated
Interest and dividend income	$	300,930		$	1,999	$	—	$	302,929
Interest expense	72,587			—		—		72,587
Net interest income	228,343			1,999		—		230,342
Provision for (reversal of) expected credit losses	68,960			11		—		68,971
Mortgage income	—			23,245		—		23,245
Title revenue	—			—		5,936		5,936
Other non-interest income (expense)	35,465			10		—		35,475
Allocated expenses (income)	(1,729		)	1,305		424		—
Non-interest expense	155,333			16,910		5,184		177,427
Income before income tax expense	41,244			7,028		328		48,600
Income tax expense	10,384			1,603		188		12,175
Net income	$	30,860		$	5,425	$	140	$	36,425
Total loans, leases, and loans held for sale, net of unearned income	$	24,522,757		$	226,720	$	—	$	24,749,477
Total assets	31,914,337			298,030		27,616		32,239,983
Total deposits	25,497,777			28,460				25,526,237
Average assets	31,694,266			264,341		27,532		31,986,139

	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 revenue	—			—			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 before income tax expense	128,962			1,295			220			130,477
Income tax expense	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