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Goodwill and Identifiable Assets (Tables) | 12 Months Ended
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Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill for the years ended December 31, 2012 and 2011 are as follows (in thousands):
| Apex |  | Oxford |  | Life Sciences |  | Healthcare |  | Physician |  | Total
Balance as of December 31, 2010 |  |  |  |  |  |  |  |  |  |  |
Gross goodwill | $ | — |  |  | $ | 149,483 |  |  | $ | 12,561 |  |  | $ | 122,230 |  |  | $ | 37,163 |  |  | $ | 321,437 |
Accumulated impairment | — |  |  | — |  |  | — |  |  | (121,717 | ) |  | — |  |  | (121,717 | )
| — |  |  | 149,483 |  |  | 12,561 |  |  | 513 |  |  | 37,163 |  |  | 199,720 |
Valesta acquisition (see Note 4) | — |  |  | — |  |  | 16,097 |  |  | — |  |  | — |  |  | 16,097 |
HCP acquisition (see Note 4) | — |  |  | — |  |  | — |  |  | — |  |  | 14,407 |  |  | 14,407 |
Translation adjustment | — |  |  | — |  |  | (990 | ) |  | — |  |  | — |  |  | (990 | )
Balance as of December 31, 2011 |  |  |  |  |  |  |  |  |  |  |
Gross goodwill | — |  |  | 149,483 |  |  | 27,668 |  |  | 122,230 |  |  | 51,570 |  |  | 350,951 |
Accumulated impairment | — |  |  | — |  |  | — |  |  | (121,717 | ) |  | — |  |  | (121,717 | )
| — |  |  | 149,483 |  |  | 27,668 |  |  | 513 |  |  | 51,570 |  |  | 229,234 |
Apex acquisition (see Note 4) | 266,788 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 266,788 |
Acquisition accounting | — |  |  | — |  |  | 1,814 |  |  | — |  |  | (9 | ) |  | 1,805 |
Translation adjustment | — |  |  | — |  |  | 529 |  |  | — |  |  | — |  |  | 529 |
Balance as of December 31, 2012 |  |  |  |  |  |  |  |  |  |  |
Gross goodwill | 266,788 |  |  | 149,483 |  |  | 30,011 |  |  | 122,230 |  |  | 51,561 |  |  | 620,073 |
Accumulated impairment | — |  |  | — |  |  | — |  |  | (121,717 | ) |  | — |  |  | (121,717 | )
| $ | 266,788 |  |  | $ | 149,483 |  |  | $ | 30,011 |  |  | $ | 513 |  |  | $ | 51,561 |  |  | $ | 498,356 |
Schedule of Acquired Intangible Assets | As of December 31, 2012 and December 31, 2011, the Company had the following acquired intangible assets (in thousands):
|  |  |  | 2012 |  | 2011
|  | Estimated Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relations |  | 3 months – 10 years |  | $ | 103,285 |  |  | $ | 23,338 |  |  | $ | 79,947 |  |  | $ | 11,077 |  |  | $ | 7,891 |  |  | $ | 3,186 |
Contractor relations |  | 2 - 7 years |  | 37,871 |  |  | 27,754 |  |  | 10,117 |  |  | 27,276 |  |  | 25,599 |  |  | 1,677 |
Non-compete agreements |  | 2 - 7 years |  | 2,986 |  |  | 1,062 |  |  | 1,924 |  |  | 899 |  |  | 604 |  |  | 295 |
|  |  |  | 144,142 |  |  | 52,154 |  |  | 91,988 |  |  | 39,252 |  |  | 34,094 |  |  | 5,158 |
Not subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  |  | 171,852 |  |  | — |  |  | 171,852 |  |  | 25,048 |  |  | — |  |  | 25,048 |
Goodwill |  |  |  | 498,356 |  |  | — |  |  | 498,356 |  |  | 229,234 |  |  | — |  |  | 229,234 |
Total |  |  |  | $ | 814,350 |  |  | $ | 52,154 |  |  | $ | 762,196 |  |  | $ | 293,534 |  |  | $ | 34,094 |  |  | $ | 259,440 |
Schedule of Estimated Future Amortization Expense | Estimated amortization for the each of the next five fiscal years and thereafter follows (in thousands):
2013 | $ | 20,973 |
2014 | 16,823 |
2015 | 14,305 |
2016 | 12,369 |
2017 | 8,996 |
Thereafter | 18,522 |
| $ | 91,988 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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