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Business Acquisitions Early Discovery Breakout of Definite-Lived Intangible Assets Acquired (Details) - Early Discovery UK $ in Thousands	Apr. 01, 2014 USD ($)
Business Acquisition [Line Items]
Total purchase price allocation	$ 104,470
Client relationships
Business Acquisition [Line Items]
Definite-lived intangible assets	$ 94,000
Weighted average amortization life	18 years
Backlog
Business Acquisition [Line Items]
Definite-lived intangible assets	$ 5,900
Weighted average amortization life	1 year
Trademark and trade names
Business Acquisition [Line Items]
Definite-lived intangible assets	$ 1,170
Weighted average amortization life	3 years
Leasehold interests
Business Acquisition [Line Items]
Definite-lived intangible assets	$ 1,000
Weighted average amortization life	13 years
Other intangible assets
Business Acquisition [Line Items]
Definite-lived intangible assets	$ 2,400
Weighted average amortization life	19 years

X

- 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=26713463&loc=d3e16265-109275

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+ References

No definition available.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

Reference 2: 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=56956791&loc=d3e4845-128472

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

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