Stock-based Compensation - Schedule of Changes in Nonvested Stock Awards (Detail) - 3 months ended Mar. 31, 2015 - $ / shares	Total
Time Based Options [Member]
Schedule of Stock Based Compensation Details Non Vested Stock Awards [Line Items]
Non-vested shares	23,937,000
Shares granted	8,682,000
Shares forfeited	(490,000)
Non-vested shares	32,129,000
Weighted average exercise price, non-vested (in Dollars per share)	$ 0.84
Weighted average exercise price, granted (in Dollars per share)	1.83
Weighted average exercise price, forfeited (in Dollars per share)	2.09
Weighted average exercise price, non-vested (in Dollars per share)	$ 1.09
Restricted Stock [Member]
Schedule of Stock Based Compensation Details Non Vested Stock Awards [Line Items]
Non-vested shares	525,000
Shares granted	20,384,000
Shares vested	(19,200,000)
Non-vested shares	1,709,000
Weighted average exercise price, non-vested (in Dollars per share)	$ 0.75
Weighted average exercise price, granted (in Dollars per share)	1.66
Weighted average exercise price, vested (in Dollars per share)	1.67
Weighted average exercise price, non-vested (in Dollars per share)	$ 1.66