Computation of Basic and Diluted Earnings per Common Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Denominator:
Basic weighted average common shares outstanding									183,642,883	162,603,882	70,890,393
Basic income (loss) from continuing operations per share — attributable to common shares	$ 0.66	$ 0.01	$ 0.11	$ (0.07)	$ (0.51)	$ 0.30	$ 0.01	$ (0.13)	$ 0.76	$ (0.33)	$ 0.80
Denominator:
Basic weighted average common shares outstanding									183,642,883	162,603,882	70,890,393
Diluted weighted average shares outstanding									186,844,575	162,603,882	70,890,393
Diluted income (loss) from continuing operations per share — attributable to common shares	$ 0.64	$ 0.01	$ 0.11	$ (0.07)	$ (0.51)	$ 0.30	$ 0.01	$ (0.13)	$ 0.75	$ (0.33)	$ 0.80
Basic Share
Numerator:
Undistributed net income (loss) from continuing operations									$ 43,613	$ (111,932)	$ (18,343)
Less:
Dividends declared on redeemable preferred stock									9,395	13,778	3,646
Accretion of redeemable preferred stock									2,474	7,117	3,315
Basic undistributed net income (loss) from continuing operations - attributable to common shares									26,969	(132,827)	(25,304)
Denominator:
Basic weighted average common shares outstanding									183,643,000	162,604,000	70,890,000
Basic income (loss) from continuing operations per share — attributable to common shares									$ 0.15	$ (0.82)	$ (0.36)
Numerator:
Undistributed net income (loss) from continuing operations									43,613	(111,932)	(18,343)
Less:
Dividends declared on redeemable preferred stock									9,395	13,778	3,646
Accretion of redeemable preferred stock									2,474	7,117	3,315
Basic undistributed net income (loss) from continuing operations - attributable to common shares									26,969	(132,827)	(25,304)
Denominator:
Basic weighted average common shares outstanding									183,643,000	162,604,000	70,890,000
Basic Share | Warrant
Less:
Participation rights of the Company Warrants in undistributed earnings									4,712	0	0
Less:
Participation rights of the Company Warrants in undistributed earnings									4,712	0	0
Basic Share | Restricted Stock
Less:
Participation rights of unvested restricted stock in undistributed earnings									63	0	0
Less:
Participation rights of unvested restricted stock in undistributed earnings									63	0	0
Diluted Share
Numerator:
Undistributed net income (loss) from continuing operations									43,613	(111,932)	(18,343)
Less:
Dividends declared on redeemable preferred stock									9,395	13,778	3,646
Accretion of redeemable preferred stock									2,474	7,117	3,315
Basic undistributed net income (loss) from continuing operations - attributable to common shares									27,097	(132,827)	(25,304)
Denominator:
Basic weighted average common shares outstanding									183,643,000	162,604,000	70,890,000
Numerator:
Undistributed net income (loss) from continuing operations									43,613	(111,932)	(18,343)
Less:
Dividends declared on redeemable preferred stock									9,395	13,778	3,646
Accretion of redeemable preferred stock									2,474	7,117	3,315
Basic undistributed net income (loss) from continuing operations - attributable to common shares									27,097	(132,827)	(25,304)
Denominator:
Basic weighted average common shares outstanding									183,643,000	162,604,000	70,890,000
Effect of dilutive options and warrants									3,202,000	0	0
Diluted weighted average shares outstanding									186,845,000	162,604,000	70,890,000
Diluted income (loss) from continuing operations per share — attributable to common shares									$ 0.15	$ (0.82)	$ (0.36)
Diluted Share | Warrant
Less:
Participation rights of the Company Warrants in undistributed earnings									4,584	0	0
Less:
Participation rights of the Company Warrants in undistributed earnings									4,584	0	0
Diluted Share | Restricted Stock
Less:
Participation rights of unvested restricted stock in undistributed earnings									63	0	0
Less:
Participation rights of unvested restricted stock in undistributed earnings									$ 63	$ 0	$ 0