Goodwill and Identifiable Assets

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Identifiable Intangible Assets

Goodwill and Other Identifiable Intangible Assets

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



	Apex			Oxford			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	—			(1,393		)	(1,393		)
Balance as of December 31, 2016	$	644,617		$	228,896		$	873,513

As of December 31, 2016 and 2015, the Company had the following acquired intangible assets (in thousands):



		2016						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	$	196,204	$	98,804	$	97,400	$	196,472	$	74,640	$	121,832
Contractor relationships	2 - 5 years	69,721		50,528		19,193		69,764		40,124		29,640
Non-compete agreements	2 - 7 years	10,861		4,922		5,939		10,874		3,163		7,711
In-use software	6 years	18,900		9,666		9,234		18,900		6,516		12,384
Favorable contracts	5 years	900		453		447		900		172		728
		296,586		164,373		132,213		296,910		124,615		172,295
Not subject to amortization:
Trademarks		245,517		—		245,517		245,630		—		245,630
Total		$	542,103	$	164,373	$	377,730	$	542,540	$	124,615	$	417,925

Amortization expense for intangible assets with finite lives was $39.6 million in 2016, $34.5 million in 2015 and $22.1 million in 2014. Estimated amortization for each of the next five years and thereafter follows (in thousands):



2017	$	32,982
2018	28,859
2019	21,976
2020	14,468
2021	11,759
Thereafter	22,169
	$	132,213

- 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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