Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill totaled $1.8 billion as of March 31, 2018 and December 31, 2017, and represents the excess of the total acquisition price paid over the fair value of the assets acquired, net of the fair values of liabilities assumed. Goodwill is not amortized but is evaluated for impairment on an annual basis at December 31 of each year or whenever events or changes in circumstances indicate the carrying value may not be recoverable. No events or circumstances since the December 31, 2017 annual impairment test were noted that would indicate it was more likely than not a goodwill impairment exists.

The following table summarizes the changes in the Company's other intangible assets for the year ended December 31, 2017, and the three months ended March 31, 2018.



(in thousands)	Other Intangible Assets
	Gross		Accumulated Amortization			Net
Balance, December 31, 2016	$	113,471	$	(76,585	)	$	36,886
Amortization	—		(6,756		)	(6,756		)
Balance, December 31, 2017	113,471		(83,341		)	30,130
Amortization	—		(1,541		)	(1,541		)
Balance, March 31, 2018	$	113,471	$	(84,882	)	$	28,589

Core deposit intangible asset values were determined by an analysis of the cost differential between the core deposits inclusive of estimated servicing costs and alternative funding sources for core deposits acquired through acquisitions. The core deposit intangible assets recorded are amortized on an accelerated basis over a period of approximately 10 years. No impairment losses separate from the scheduled amortization have been recognized in the periods presented.

The table below presents the forecasted amortization expense for other intangible assets acquired in all mergers:



(in thousands)
Year	Expected Amortization
Remainder of 2018	$	4,625
2019	5,618
2020	4,986
2021	4,520
2022	4,095
Thereafter	4,745
	$	28,589

- 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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