Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

In accordance with the Intangibles – Goodwill and Other topic of the FASB ASC, goodwill is not amortized but is reviewed for potential impairment at the reporting unit level. Management analyzes its goodwill for impairment on an annual basis and between annual tests in certain circumstances such as upon material adverse changes in legal, business, regulatory and economic factors. An impairment loss is recorded to the extent that the carrying amount of goodwill exceeds its implied fair value. The Company performed an impairment assessment as of July 31, 2015 and concluded that there was no impairment. As of December 31, 2015 we determined there were no events or circumstances which would more likely than not reduce the fair value of our reporting unit below its carrying amount.

The core deposit intangible (“CDI”) is evaluated for impairment if events and circumstances indicate a possible impairment. The CDI is amortized on an accelerated basis over an estimated life of 10 years.

The following table sets forth activity for goodwill and other intangible assets for the period:



	Years Ended December 31,
	2015			2014			2013
	(in thousands)
Goodwill, beginning of period	$	382,537		$	343,952		$	115,554
Established through acquisitions and provisional period adjustments (1)	225			38,585			228,398
Total goodwill, end of period	382,762			382,537			343,952
Other intangible assets, net
Core deposit intangible:
Gross core deposit intangible balance, beginning of period	58,598			47,698			32,441
Accumulated amortization, beginning of period	(29,058		)	(22,765		)	(16,720		)
Core deposit intangible, net, beginning of period	29,540			24,933			15,721
Established through acquisitions	—			10,900			15,257
CDI current period amortization	(6,882		)	(6,293		)	(6,045		)
Total core deposit intangible, end of period	22,658			29,540			24,933
Intangible assets not subject to amortization	919			919			919
Other intangible assets, net at end of period	23,577			30,459			25,852
Total goodwill and intangible assets, end of period	$	406,339		$	412,996		$	369,804

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(1) See Note 2, Business Combinations, for additional information regarding the current period adjustment to goodwill related to the acquisition of Intermountain on November 1, 2014.

The following table provides the estimated future amortization expense of core deposit intangibles for the succeeding five years:



Years Ending December 31,	(in thousands)
2016	$	5,945
2017	4,913
2018	3,855
2019	2,951
2020	2,048

- 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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