Summary of Significant Accounting Policies (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Summary of Significant Accounting Policies [Line Items]
Effective tax rate	56.00%	(40.00%)	10.00%	(41.00%)
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Vesting period of equity awards			2 years
Useful life of patents and patent rights			1 year
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Vesting period of equity awards			4 years
Useful life of patents and patent rights			10 years