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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

LEGAL PROCEEDINGS (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Feb. 28, 2011 Positive Outcome of Litigation [Member] Patent Infringement Claim One [Member]	Dec. 31, 2008 Positive Outcome of Litigation [Member] Patent Infringement Claim One [Member]	Oct. 31, 2006 Positive Outcome of Litigation [Member] Patent Infringement Claim One [Member]	Oct. 31, 2004 Positive Outcome of Litigation [Member] Patent Infringement Claim One [Member] patents	May 31, 2008 Positive Outcome of Litigation [Member] Patent Infringement Claim Two [Member] patents	Feb. 28, 2010 Pending or Threatened Litigation [Member]	Dec. 31, 2008 Pending or Threatened Litigation [Member] Patent Infringement Claim One [Member]	Dec. 31, 2009 Pending or Threatened Litigation [Member] Patent Infringement Claim Two [Member] patents	Nov. 30, 2008 Pending or Threatened Litigation [Member] Patent Infringement Claim Two [Member] patents	May 31, 2010 Pending or Threatened Litigation [Member] Patent Infringement Claim Three [Member] patents	Nov. 30, 2009 Pending or Threatened Litigation [Member] Patent Infringement Claim Three [Member] patents	Feb. 28, 2010 Pending or Threatened Litigation [Member] Patent Infringement Claim Four [Member] patents
Gain and Loss Contingencies [Line Items]
Number of patents in filed infringement claims				4	3				3		2	4
Number of patents withdrawn from infringement claims								1		1
Number of patents remaining in infringement claims								2		1
Period for petition for further stay of permanent injunction							90 days
Damages awarded to the Company	$ 12.9	$ 6.1	$ 34.0
Damages sought after the Company						$ 17.0