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Research and Development Costs - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule Of Research And Development [Line Items]
Research and development costs related to software development	$ 4.0	$ 4.7	$ 14.7	$ 13.8

X

- Definition

Schedule Of Research And Development [Line Items]

+ References

No definition available.

+ Details

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X

- Definition

Research and development expense during the period related to the costs of developing and achieving technological feasibility of a computer software product to be sold, leased, or otherwise marketed.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Preliminary Project Stage



-URI http://asc.fasb.org/extlink&oid=6521637



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



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Research and Development



-URI http://asc.fasb.org/extlink&oid=6523717



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 985



-SubTopic 20



-Section 50



-Paragraph 1



-Subparagraph (b)



-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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