EARNINGS PER COMMON SHARE - Calculations of Earnings Per Common Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net Income (Loss):
Net income (loss)	$ 23,201	$ 15,940	$ 61,509	$ (179,276)
Excess of carrying amount of preferred stock exchanged over fair value of new common stock	0	0	1,659	0
Net income (loss) attributable to common stockholders	23,201	15,940	63,168	(179,276)
Weighted-Average Shares:
Basic weighted-average common shares outstanding	210,466	205,579	208,151	205,512
Average potential common shares	1,893	1,737	1,660	0
Diluted weighted-average number of common shares outstanding	212,359	207,316	209,811	205,512
Income (loss) per common share:
Basic	$ 0.11	$ 0.08	$ 0.30	$ (0.87)
Diluted	$ 0.11	$ 0.08	$ 0.30	$ (0.87)
Retained Earnings [Member]
Net Income (Loss):
Net income (loss)			61,509	(179,276)
Excess of carrying amount of preferred stock exchanged over fair value of new common stock			$ 1,659	$ 0