Summary of Stock Option Activity (Parenthetical) (Detail) (USD $)	12 Months Ended						0 Months Ended		12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2013 Employee Stock Options 2010 Plan [Member]	Nov. 06, 2013 2013 Equity Incentive Plan	May 09, 2012 Scenario, Adjustment	Dec. 31, 2013 Scenario, Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equitable adjustment to reduce exercise price								$ 3.71	$ 3.71
Stock options not granted under the Equity Incentive Plan						100,000
Non vested shares, Granted	150,000	[1],[2]	1,020,000	5,739,140	[3]		150,000
Total intrinsic value of options exercised	$ 91,600,000
Option exercisable, weighted average remaining contractual term	6 years 9 months 15 days
aggregate intrinsic value of options exercisable	$ 7.4

[1] Primarily represents non-operating depreciation and amortization expenses generated as a result of the Merger and certain non-recurring fees and expenses.

[2] On November 6, 2013, the Company granted 150,000 stock options to an Officer of the Company under the 2013 Plan.

[3] Includes 100,000 of stock options that were not granted under the Equity Incentive Plans, but are subject to certain terms of the 2010 Plan.