Goodwill and Identifiable Assets

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Identifiable Intangible Assets

5. Goodwill and Identifiable Intangible Assets

The changes in the carrying amount of goodwill for the year ended December 31, 2015 and the three months ended March 31, 2016 are as follows (in thousands):



	Apex Segment			Oxford Segment			Total
Balance as of December 31, 2014	$	287,951		$	224,109		$	512,060
Creative Circle Acquisition	358,029			—			358,029
LabResource Acquisition	—			6,449			6,449
Translation adjustment	(1,363		)	(269		)	(1,632		)
Balance as of December 31, 2015	644,617			230,289			874,906
Translation adjustment	355			396			751
Balance as of March 31, 2016	$	644,972		$	230,685		$	875,657

Acquired intangible assets consisted of the following (in thousands):



		As of March 31, 2016						As of December 31, 2015
	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Subject to amortization:
Customer relationships	2 - 10 years	$	196,780	$	80,781	$	115,999	$	196,472	$	74,640	$	121,832
Contractor relationships	2 - 5 years	69,813		42,991		26,822		69,764		40,124		29,640
Non-compete agreements	2 - 7 years	10,889		3,626		7,263		10,874		3,163		7,711
In-use software	6 years	18,900		7,304		11,596		18,900		6,516		12,384
Favorable contracts	5 years	900		242		658		900		172		728
		297,282		134,944		162,338		296,910		124,615		172,295
Not subject to amortization:
Trademarks		245,761		—		245,761		245,630		—		245,630
Total		$	543,043	$	134,944	$	408,099	$	542,540	$	124,615	$	417,925

Amortization expense for intangible assets with finite lives was $10.1 million and $4.9 million for the three months ended March 31, 2016 and 2015, respectively. Estimated amortization expense for the remainder of this year, each of the next four years, and thereafter is as follows (in thousands):



2016	$	29,515
2017	33,054
2018	28,928
2019	22,016
2020	14,515
Thereafter	34,310
	$	162,338

Goodwill and other intangible assets having an indefinite useful life are not amortized for financial statement purposes. These assets are reviewed for impairment on an annual basis as of October 31 and whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. There were no triggering events that required an interim impairment analysis during the current period.

- 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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