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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph e

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- Definition

The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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The amount of acquisition cost of a business combination allocated to current assets.

+ References

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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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-Publisher FASB

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The amount of acquisition cost of a business combination allocated to liabilities assumed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 98-1

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The amount of acquisition cost of a business combination allocated to noncurrent assets.

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- Definition

The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

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-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.

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The amount of indemnification assets (amounts to be reimbursed if and when certain assumed liabilities are paid) recognized at the acquisition date of a business combination.

+ 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 (a)(1)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

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Purchase Price Allocation (Detail) (USD $) In Millions, unless otherwise specified	Nov. 04, 2011 Copal Partners	Nov. 04, 2011 Copal Partners Trade names	Nov. 04, 2011 Copal Partners Client relationships	Nov. 04, 2011 Copal Partners Other intangibles	Dec. 16, 2011 Barrie & Hibbert Limited	Dec. 16, 2011 Barrie & Hibbert Limited Trade names	Dec. 16, 2011 Barrie & Hibbert Limited Client relationships	Dec. 16, 2011 Barrie & Hibbert Limited Software	Dec. 16, 2011 Barrie & Hibbert Limited Other intangibles	Dec. 11, 2013 Amba	Dec. 11, 2013 Amba Trade names	Dec. 11, 2013 Amba Client relationships	Dec. 11, 2013 Amba Other intangibles
Business Acquisition [Line Items]
Current assets	$ 15.5				$ 15.2					$ 23.7
Property and equipment, net	0.5				0.7					0.4
Total intangible assets	79.2	8.6	66.2	4.4	27.1	1.9	8.3	16.8	0.1	31.6	3.3	26.7	1.6
Goodwill	136.9				54.6					34.5
Indemnification asset	18.8									10.4
Other assets	6.6									2.0
Liabilities assumed	57.7				18.1					(31.0)
Net assets acquired	$ 199.8				$ 79.5					$ 71.6