Stock-Based Compensation (Details) - Summary of Restricted Stock Units Activity (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Summary of Restricted Stock Units Activity [Abstract]
Awards outstanding at December 31, 2013	1,478,447
Restricted stock units granted	470,853	338,000
Restricted stock units vested	(269,382)	(514,000)
Restricted stock units cancelled	(20,522)
Awards outstanding at June 30, 2014	1,659,396
Awards outstanding at June 30, 2014 (in Dollars)	$ 3,999
Awards outstanding at June 30, 2014	3 years 87 days
Awards vested and expected to vest at June 30, 2014	1,628,667
Awards vested and expected to vest at June 30, 2014 (in Dollars)	$ 3,925
Awards vested and expected to vest at June 30, 2014	3 years 3 days