Share-Based Compensation (Summary of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Each Anniversary of Commencement Date for first 4 years [Member]
Shares:
Beginning balance (in shares)	21,830
Granted (in shares)	6,604
Exercised (in shares)	(50)
Forfeited (in shares)	(200)
Ending balance (in shares)	28,184
Exercisable (in shares)	8,882
Expected to vest (in shares)	27,749
Weighted Average Exercise Price (in dollars per share):
Beginning balance, weighted average exercise price (in dollars per share)	$ 1.00
Granted, weighted average exercise price (in dollars per share)	$ 1.40
Exercised, weighted average exercise price (in dollars per share)	$ 1.00
Forfeited, weighted average exercise price (in dollars per share)	$ 1.00
Ending balance, weighted average exercise price (in dollars per share)	$ 1.09
Exercisable, weighted average exercise price (in dollars per share)	$ 1.01
Expected to vest, weighted average exercise price (in dollars per share)	$ 1.10
Weighted average remaining life, outstanding	8 years 6 months
Weighted average remaining life, exercisable	8 years 1 month 6 days
Weighted average remaining life, expected to vest	8 years 6 months
Aggregate intrinsic value, ending balance	$ 8,632
Aggregate intrinsic value, exercisable	3,453
Aggregate intrinsic value, vested and expected to vest	8,458
Annually over years 2014 through 2017 [Member]
Shares:
Beginning balance (in shares)	21,330
Granted (in shares)	6,104
Exercised (in shares)	(50)
Forfeited (in shares)	(200)
Ending balance (in shares)	27,184
Exercisable (in shares)	4,216
Expected to vest (in shares)	26,560
Weighted Average Exercise Price (in dollars per share):
Beginning balance, weighted average exercise price (in dollars per share)	$ 1.00
Granted, weighted average exercise price (in dollars per share)	$ 1.40
Exercised, weighted average exercise price (in dollars per share)	$ 1.00
Forfeited, weighted average exercise price (in dollars per share)	$ 1.00
Ending balance, weighted average exercise price (in dollars per share)	$ 1.09
Exercisable, weighted average exercise price (in dollars per share)	$ 1.00
Expected to vest, weighted average exercise price (in dollars per share)	$ 1.09
Weighted average remaining life, outstanding	8 years 4 months 24 days
Weighted average remaining life, exercisable	8 years 1 month 6 days
Weighted average remaining life, expected to vest	8 years 4 months 24 days
Aggregate intrinsic value, ending balance	8,432
Aggregate intrinsic value, exercisable	1,686
Aggregate intrinsic value, vested and expected to vest	8,262
Rollover Stock Options [Member]
Shares:
Beginning balance (in shares)	17,351
Granted (in shares)	0
Exercised (in shares)	(268)
Forfeited (in shares)	0
Ending balance (in shares)	17,083
Exercisable (in shares)	17,083
Weighted Average Exercise Price (in dollars per share):
Beginning balance, weighted average exercise price (in dollars per share)	$ 0.25
Granted, weighted average exercise price (in dollars per share)	$ 0.25
Exercised, weighted average exercise price (in dollars per share)	$ 0.25
Forfeited, weighted average exercise price (in dollars per share)	$ 0.25
Ending balance, weighted average exercise price (in dollars per share)	$ 0.25
Exercisable, weighted average exercise price (in dollars per share)	$ 0.25
Weighted average remaining life, outstanding	5 years 8 months 12 days
Weighted average remaining life, exercisable	5 years 8 months 12 days
Aggregate intrinsic value, ending balance	19,645
Aggregate intrinsic value, exercisable	$ 19,645