Commitments and Contingencies (Details) (USD $)						1 Months Ended			1 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Tessera Inc Legal Proceedings [Member]	Sep. 30, 2014 Letter of Credit [Member]	Sep. 30, 2014 Senior Secured Revolving Credit Facility due June 2017	May 31, 2014 2009 Arbitration [Member] Tessera Inc Legal Proceedings [Member]	Jul. 31, 2012 Delaware Litigation [Member] Tessera Inc Legal Proceedings [Member] patents	Apr. 30, 2013 IPR Proceeding [Member] Tessera Inc Legal Proceedings [Member] claims	Oct. 31, 2014 Subsequent Event [Member] 2009 Arbitration [Member] Tessera Inc Legal Proceedings [Member]	Oct. 01, 2014 Subsequent Event [Member] 2009 Arbitration [Member] Tessera Inc Legal Proceedings [Member]
Loss Contingencies [Line Items]
Credit facility, borrowing capacity				$ 25,000,000	$ 150,000,000
Letters of Credit Outstanding				400,000
Letters of credit available				24,600,000
Loss Contingency, Patents Allegedly Infringed, Number							1
Patent Claims								2
Loss Contingency, Range of Possible Loss, Minimum			11,000,000
Loss Contingency, Range of Possible Loss, Maximum			113,000,000
Loss Contingency, Damages Awarded, Value						113,000,000			113,000,000
Loss Contingency, Pre-Judgment Interest									15,000,000
Loss Contingency, Interest Rate After Date of Award										10.00%
Accrued Royalties, Current	43,324,000	43,324,000
Accrued interest	$ 43,784,000	$ 21,807,000	$ 6,500,000