Stockholders' Equity - Summary of outstanding RSUs under the 2011 LTIP (Detail) (Restricted Stock Units [Member], 2011 LTIP [Member], USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	22 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2013
Restricted Stock Units [Member] | 2011 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested RSUs at January 1, 2014, shares	617,027		504,600
Granted, Shares	0	557,484
Vested, Shares	0
Forfeited, Shares	0	(152,044)
Non-vested RSUs at March 31, 2014, shares	617,027	617,027	504,600
Non-vested RSUs at January 1, 2014, Weighted Average Grant Date Fair Value	$ 12.30
Granted, Weighted Average Grant Date Fair Value	$ 0.00
Vested, Weighted Average Grant Date Fair Value	$ 0.00
Forfeited, Weighted Average Grant Date Fair Value	$ 0.00
Non-vested RSUs at March 31, 2014, Weighted Average Grant Date Fair Value	$ 12.30	$ 12.30
Non-vested RSUs at March 31, 2014, Total Unrecognized Compensation Cost (net of estimated forfeitures)	$ 3,043	$ 3,043
Non-vested RSUs at March 31, 2014, Weighted-Average Period Over Which Cost is Expected to be Recognized	9 months