Investments (Details) (Keymark Enterprises, LLC, USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011
Keymark Enterprises, LLC
Purchase of Keymark software assets
Investment in Keymark, carrying value	$ 1.0
Software assets acquired	11.5
Software assets acquired, net cash payments	6.2
Ownership interest given up in exchange for software assets acquired (as a percent)	46.10%
Gain on disposal of investment in Keymark	$ 4.3

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The percentage ownership interest in the seller's stock given up by the buyer in exchange for assets acquired.

+ References

No definition available.

+ Details

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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

No definition available.

+ Details

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- Definition

Amount of the entity's equity method investment which has been sold.

+ References

No definition available.

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- Definition

The cash outflow associated with the acquisition from vendors of software programs or applications for internal use (that is, not to be sold, leased or otherwise marketed to others) that qualify for capitalization.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (c)

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

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The value of all consideration given or received by the Entity in the significant acquisition or disposal.

+ References

No definition available.

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