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Acquisitions (Schedule of Purchase Price Allocation) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | May 15, 2012 Apex Systems | Jul. 31, 2011 HCP | Feb. 28, 2011 Valesta
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Current assets | $ 10,282 | $ 169,844 | $ 3,950 | $ 6,332
Property and equipment | 422 | 902 | 123 | 299
Goodwill | 32,309 | 266,788 | 14,398 | 17,911
Identifiable intangible assets | 7,463 | 251,555 | 1,784 | 5,679
Other | 39 | 494 | 13 | 26
Total assets acquired | 50,515 | 689,583 | 20,268 | 30,247
Current liabilities | 5,844 | 77,905 | 1,070 | 4,774
Other | 1,863 | 850 | 49 | 1,814
Total liabilities assumed | 7,707 | 78,755 | 1,119 | 6,588
Total purchase price | $ 42,808 | $ 610,828 | $ 19,149 | $ 23,659

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- Definition The amount of acquisition cost of a business combination allocated to assets acquired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 37 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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- Definition Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 52 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 53 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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