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ACQUISITIONS Aon Intangible Assets (Details) - Aon Hewitt $ in Thousands | Jan. 04, 2016 USD ($)
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Business Acquisition [Line Items] |  |
Estimated Fair Value | $ 35,300 |
Technologies |  |
Business Acquisition [Line Items] |  |
Estimated Fair Value | $ 400 |
Estimated Useful Lives in Years | 3 years |
Customer relationships |  |
Business Acquisition [Line Items] |  |
Estimated Fair Value | $ 34,900 | [1]
Estimated Useful Lives in Years | 9 years |
[1] | The preliminary purchase price allocation was adjusted for changes resulting in a net reduction in goodwill of $0.5 million.

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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