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Goodwill and Identifiable Assets (Tables) | 3 Months Ended
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Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | he changes in the carrying amount of goodwill for the year ended December 31, 2014 and the three months ended March 31, 2015 are as follows (in thousands):
| Apex |  | Oxford |  | Life Sciences Europe |  | Total
Balance as of December 31, 2013 |  |  |  |  |  |  |
Gross goodwill | $ | 289,712 |  |  | $ | 220,150 |  |  | $ | 4,564 |  |  | $ | 514,426 |
Accumulated impairment | — |  |  | — |  |  | — |  |  | — |
| 289,712 |  |  | 220,150 |  |  | 4,564 |  |  | 514,426 |
Translation adjustment | (1,761 | ) |  | (120 | ) |  | (485 | ) |  | (2,366 | )
Balance as of December 31, 2014 |  |  |  |  |  |  |
Gross goodwill | 287,951 |  |  | 220,030 |  |  | 4,079 |  |  | 512,060 |
Accumulated impairment | — |  |  | — |  |  | — |  |  | — |
| 287,951 |  |  | 220,030 |  |  | 4,079 |  |  | 512,060 |
Translation adjustment | (1,412 | ) |  | (96 | ) |  | (388 | ) |  | (1,896 | )
Balance as of March 31, 2015 |  |  |  |  |  |  |
Gross goodwill | 286,539 |  |  | 219,934 |  |  | 3,691 |  |  | 510,164 |
Accumulated impairment | — |  |  | — |  |  | — |  |  | — |
| $ | 286,539 |  |  | $ | 219,934 |  |  | $ | 3,691 |  |  | $ | 510,164 |
Schedule of Acquired Intangible Assets | As of the dates presented, the Company had the following acquired intangible assets (in thousands):
|  |  | As of March 31, 2015 |  | As of December 31, 2014
| Estimated Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Intangible assets subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relations | 3 months – 10 years |  | $ | 100,693 |  |  | $ | 56,214 |  |  | $ | 44,479 |  |  | $ | 101,141 |  |  | $ | 53,434 |  |  | $ | 47,707 |
Contractor relations | 2 - 7 years |  | 39,291 |  |  | 32,951 |  |  | 6,340 |  |  | 39,332 |  |  | 32,021 |  |  | 7,311 |
Non-compete agreements | 2 - 7 years |  | 3,582 |  |  | 2,062 |  |  | 1,520 |  |  | 3,654 |  |  | 1,922 |  |  | 1,732 |
In-use software | 6 years |  | 18,900 |  |  | 4,154 |  |  | 14,746 |  |  | 18,900 |  |  | 3,366 |  |  | 15,534 |
|  |  | 162,466 |  |  | 95,381 |  |  | 67,085 |  |  | 163,027 |  |  | 90,743 |  |  | 72,284 |
Intangible assets not subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  | 178,325 |  |  | — |  |  | 178,325 |  |  | 178,325 |  |  | — |  |  | 178,325 |
Total |  |  | $ | 340,791 |  |  | $ | 95,381 |  |  | $ | 245,410 |  |  | $ | 341,352 |  |  | $ | 90,743 |  |  | $ | 250,609 |
Schedule of Estimated Future Amortization Expense | Estimated amortization for the remainder of this fiscal year, each of the next four fiscal years and thereafter follows (in thousands):
2015 | $ | 14,464 |
2016 | 16,276 |
2017 | 12,012 |
2018 | 9,616 |
2019 | 7,928 |
Thereafter | 6,789 |
| $ | 67,085 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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