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ACQUISITIONS Aon Intangible Assets (Details) - Aon Hewitt $ in Thousands	Jan. 04, 2016 USD ($)
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

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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

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