Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

Changes to the carrying amount of goodwill by reporting unit for the three months ended March 31, 2018, and the year ended December 31, 2017 are provided in the following table.



(Dollars in thousands)	IBERIABANK		Mortgage		LTC		Total
Balance, December 31, 2016	$	698,513	$	23,178	$	5,165	$	726,856
Goodwill acquired during the year (preliminary allocation)	462,046		—		—		462,046
Balance, December 31, 2017	$	1,160,559	$	23,178	$	5,165	$	1,188,902
Goodwill acquired during the year (preliminary allocation) and adjustments	43,887		—		3,380		47,267
Balance, March 31, 2018	$	1,204,446	$	23,178	$	8,545	$	1,236,169

On March 23, 2018 the Company completed its acquisition of Gibraltar. In connection with the acquisition, the Company recorded $42.5 million of goodwill based on preliminary adjustments. On January 12, 2018, the Company's subsidiary, LTC, completed its acquisition of SolomonParks. In connection with the acquisition, LTC recorded $3.4 million of goodwill based on preliminary adjustments. In addition, goodwill adjustments were made during the first three months of 2018 as a result of measurement period updates to the preliminary fair value estimates related to the 2017 acquisition of Sabadell United. See Note 3 for additional information regarding these acquisitions.

The Company performed the required annual goodwill impairment test as of October 1, 2017. The Company’s annual impairment test did not indicate impairment in any of the Company’s reporting units as of the testing date. Following the testing date, management evaluated the events and changes that could indicate that goodwill might be impaired and concluded that a subsequent interim test was not necessary.

Mortgage Servicing Rights

Mortgage servicing rights are recorded at the lower of cost or market value in “other intangible assets” on the Company's consolidated balance sheets and amortized over the remaining servicing life of the loans, with consideration given to prepayment assumptions. Mortgage servicing rights had the following carrying values as of the periods indicated:



	March 31, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Mortgage servicing rights	$	10,030	$	(4,128	)	$	5,902	$	9,588	$	(3,931	)	$	5,657

In addition, there was an insignificant amount of non-mortgage servicing rights related to SBA loans as of March 31, 2018 and December 31, 2017, respectively.

Title Plant

The Company held title plant assets recorded in “other intangible assets” on the Company's consolidated balance sheets totaling $6.8 million on March 31, 2018 and $6.7 million on December 31, 2017. The increase in title plant assets was the result of the SolomonParks acquisition during the first quarter of 2018. No events or changes in circumstances occurred during the three months ended March 31, 2018 to suggest the carrying value of the title plant was not recoverable.

Intangible assets subject to amortization

In connection with the acquisition of Gibraltar, the Company recorded $18.5 million of core deposit intangible assets. Core deposit intangible assets are subject to amortization over a ten year period. In connection with the acquisition of SolomonParks, the Company recorded $155.9 thousand of non-compete agreement intangible assets. Non-compete agreement intangible assets are subject to amortization over a five year period. Definite-lived intangible assets had the following carrying values included in “other intangible assets” on the Company’s consolidated balance sheets as of the periods indicated:



	March 31, 2018							December 31, 2017
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangible assets	$	136,183	$	(46,736	)	$	89,447	$	127,957	$	(51,971	)	$	75,986
Customer relationship intangible asset	1,385		(1,262		)	123		1,143		(996		)	147
Non-compete agreement	206		(36		)	170		63		(39		)	24
Total	$	137,774	$	(48,034	)	$	89,740	$	129,163	$	(53,006	)	$	76,157

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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