Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014
Contractual Commitment [Abstract]
Legal Settlement Amount due April 2014	$ 4
Legal Settlement Amount due January 2015	5.5
Minimum remaining contractual cash obligations	40.1
Total minimum payments required under outsourcing agreement over remaining term	136.2
Estimate of remaining payments pursuant to outsourcing agreement	$ 283.3

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Amount of judgment or settlement awarded against the entity in respect of litigation due April 2014

+ References

No definition available.

+ Details

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- Definition

Amount of judgment or settlement awarded against the entity in respect of litigation due January 2015

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No definition available.

+ Details

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- Definition

Minimum remaining contractual cash obligations related to the global joint venture agreement and strategic relationship agreement with Gallup.

+ References

No definition available.

+ Details

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- Definition

Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 440

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308

+ Details

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- Definition

Amount of change that payments under a contractual obligation might vary as facts and circumstances change.

+ References

No definition available.

+ Details

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