Amount of business acquisition purchase price including redeemable noncontrolling interest.

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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- Definition

The cash outflow associated with the purchase of noncontrolling interest during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

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Consolidated Core Businesses - Additional Information (Detail) (USD $) In Millions, unless otherwise specified				1 Months Ended
	Sep. 30, 2013 Minimum	Sep. 30, 2013 Maximum	Mar. 30, 2012 Msdsonline One	Dec. 27, 2012 Bolt	Aug. 09, 2013 Bolt	Dec. 27, 2012 Bolt Minimum	Dec. 27, 2012 Bolt Maximum
Subsidiary Or Equity Method Investee [Line Items]
Percentage of business acquisition			96.00%
Additional equity ownership acquired				$ 13.2
Equity method investment, ownership percentage	20.00%	50.00%				38.00%	53.00%
Cash paid for acquisition					$ 9.0