LEGAL PROCEEDINGS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		1 Months Ended		3 Months Ended	1 Months Ended			0 Months Ended	1 Months Ended
	Jun. 30, 2012 IRS Tax Examination Settlement [Member]	Jun. 30, 2012 IRS Tax Examination Settlement [Member] State [Member]	Dec. 31, 2008 Pending or Threatened Litigation [Member] Patent Infringement Claim One [Member]	Nov. 30, 2008 Pending or Threatened Litigation [Member] Patent Infringement Claim Two [Member] patents	Jun. 30, 2012 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	May 01, 2012 Pending or Threatened Litigation [Member] Patent Infringment Claim Five [Member] patents	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
Gain and Loss Contingencies [Line Items]
Damages awarded to the Company										$ 12.9	$ 6.1	$ 34.0
Potential impact on revenue by patent litigation (as a percentage)					0.10%
Damages sought after the Company								19.0
Number of patents in filed infringement claims				3			2	4	4				4	3
Number of patents withdrawn from infringement claims					1	1
Number of patents remaining in infringement claims					2	2
Period for petition for further stay of permanent injunction			90 days
Tax examination, tax assessment	35.5
Tax examination, tax assessment, interest	8.7
Tax examination, income taxes and interest		0.3
Amount to be repatriated from foreign-based subsidiary in future periods, without incurring U.S. income taxes	$ 101.9