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Legal Matters - Additional Information (Detail) - USD ($) $ in Millions	Sep. 11, 2012	Feb. 14, 2011
Yvonne Wiederhold [Member]
Legal Settlement By Party [Line Items]
Amount delivered for plaintiff		$ 10.1
Percentage liable by company for plaintiff		90.00%
Litigation settlement, amount		$ 8.9
Raghurami Reddy [Member]
Legal Settlement By Party [Line Items]
Amount delivered for plaintiff	$ 32.0
Percentage liable by company for plaintiff	60.00%

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- Definition

Legal Settlement By Party [Line Items]

+ References

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- Definition

Percentage liable by company for plaintiff.

+ References

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- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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