Share-Based Compensation (Summary of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Stock Option Tranche 1 [Member]
Shares:
Beginning balance (in shares)	21,830
Granted (in shares)	625
Exercised (in shares)	0
Forfeited (in shares)	(200)
Ending balance (in shares)	22,255
Exercisable (in shares)	4,366
Expected to vest (in shares)	21,512
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)	$ 1.01
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 1.00
Expected to vest, Weighted Average Exercise Price (in dollars per share)	$ 1.01
Weighted Average Remaining Life, Outstanding	8 years 6 months
Weighted Average Remaining Life, Exercisable	8 years 6 months
Weighted Average Remaining Life, Expected to vest	8 years 6 months
Aggregate Intrinsic Value, Ending Balance	$ 8,902
Aggregate Intrinsic Value, Exercisable	1,746
Aggregate Intrinsic Value, Vested and expected to vest	8,605
Stock Option Tranche 2 [Member]
Shares:
Beginning balance (in shares)	21,330
Granted (in shares)	625
Exercised (in shares)	0
Forfeited (in shares)	(200)
Ending balance (in shares)	21,755
Exercisable (in shares)	4,266
Expected to vest (in shares)	21,012
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)	$ 1.01
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 1.00
Expected to vest, Weighted Average Exercise Price (in dollars per share)	$ 1.01
Weighted Average Remaining Life, Outstanding	8 years 6 months
Weighted Average Remaining Life, Exercisable	8 years 6 months
Weighted Average Remaining Life, Expected to vest	8 years 6 months
Aggregate Intrinsic Value, Ending Balance	8,702
Aggregate Intrinsic Value, Exercisable	1,706
Aggregate Intrinsic Value, Vested and expected to vest	8,405
Rollover Stock Options [Member]
Shares:
Beginning balance (in shares)	17,351
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	0
Ending balance (in shares)	17,351
Exercisable (in shares)	17,351
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	3 years 7 months 6 days
Weighted Average Remaining Life, Exercisable	3 years 7 months 6 days
Aggregate Intrinsic Value, Ending Balance	19,954
Aggregate Intrinsic Value, Exercisable	$ 19,954