v2.4.0.8

Selected Financial Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 303.4	$ 290.5
Operating income (loss)	34.8	44.2
U.S. Information Services
Segment Reporting Information [Line Items]
Revenue	194.2	183.7
Operating income (loss)	32.4	43.1
International
Segment Reporting Information [Line Items]
Revenue	54.1	55.7
Operating income (loss)	2.2	2.4
Interactive [Member]
Segment Reporting Information [Line Items]
Revenue	55.1	51.1
Operating income (loss)	19.0	15.4
Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Operating income (loss)	$ (18.8)	$ (16.7)

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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X

- Definition

Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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X

- Details

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