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Recently Completed Acquisitions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended |  |
--- | --- | --- | ---
Nov. 30, 2012 Entity | Sep. 21, 2012 Synta, Inc. Minimum | Sep. 05, 2012 Kirker Enterprises, Inc. Minimum
Business Acquisition [Line Items] |  |  |
Expected annual sales |  | $ 40 | $ 100
Number of acquisition completed | 2 |  |
Business acquisition, preliminary fair value of goodwill | 160.9 |  |
Business acquisition, preliminary fair value of other intangible assets | 103.3 |  |
Business acquisition, preliminary fair value of contingent consideration | $ 63.5 |  |

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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Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 52 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 53 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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