Components of Calculation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Oct. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Earnings Per Share [Abstract]
Net loss		$ (143,070)		$ (104,589)		$ (132,915)
Less: Preferred stock dividends 1		(6,900)		(1,687)		0
Loss attributable to common shareholders - Basic and Diluted		(149,970)		(106,276)		(132,915)
Net loss attributable to common shareholders		$ (149,970)		$ (106,276)		$ (132,915)
Weighted-average shares - Basic		62,335,000		47,919,000		45,784,000
Effect of dilutive securities		0	[1]	0	[1]	0	[1]
Weighted-average shares - Diluted		62,335,000		47,919,000		45,784,000
Preferred stock dividend rate	6.00%	6.00%
Potentially dilutive securities with the effect of being anti-dilutive excluded from the calculation of diluted earnings per common share		19,800,000		19,200,000		100,000

[1] For 2013, 2012 and 2011, approximately 19.8 million, 19.2 million and 0.1 million potentially dilutive securities, including the 6% Preferred Stock, Convertible Notes, stock options, restricted stock and restricted stock units had the effect of being anti-dilutive and were excluded from the calculation of diluted earnings per common share.