Acquisition Purchase Price Allocation (Details) (USD $) In Thousands, unless otherwise specified			0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jan. 12, 2012 ADAPTIX, Inc. [Member]	Dec. 31, 2013 ADAPTIX, Inc. [Member]
Business Acquisition [Line Items]
Fair value of net tangible assets acquired			$ 10,000
Intangible assets acquired - patents			150,000
Goodwill	30,149	30,149	30,149
Net deferred income tax liability			(30,149)
Total			160,000
Patents, useful life			10 years	10 years
Patents, future annual amortization expense per year			$ 15,000