SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Line Items]
Net Loss From Continuing Operations	$ (24,034)	$ (44,212)	$ (70,082)	$ (26,085)
Net Income From Discontinued Operations		13,763	148,609	4,176
Basic Net Loss Attributable to Common Stock, Shares	46,570	46,443	46,684	46,414
Diluted Net Loss Attributable to Common Stock, Shares	46,570	46,443	46,684	46,414
Basic Net Loss From Continuing Operations Attributable to Common Stock, Per Share	$ (0.52)	$ (0.95)	$ (1.45)	$ (0.56)
Diluted Net Loss From Continuing Operations Attributable to Common Stock, Per Share	$ (0.52)	$ (0.95)	$ (1.45)	$ (0.56)
Basic Net Income From Discontinued Operations Attributable to Common Stock, Per Share		$ 0.29	$ 3.08	$ 0.09
Diluted Net Income From Discontinued Operations Attributable to Common Stock, Per Share		$ 0.29	$ 3.08	$ 0.09
Continuing Operations
Earnings Per Share [Line Items]
Net Loss From Continuing Operations	(24,034)	(44,212)	(70,082)	(26,085)
(Income) Loss Allocable to Unvested Stock Grants			2,254
Basic Net Loss Attributable to Common Stock	(24,034)	(44,212)	(67,828)	(26,085)
Effect of Dilutive Securities: Stock Options
Effect of Dilutive Securities: Performance Stock Units
Diluted Net Loss Attributable to Common Stock	(24,034)	(44,212)	(67,828)	(26,085)
Basic Net Loss Attributable to Common Stock, Shares	46,570	46,443	46,684	46,414
Effect of Dilutive Securities: Stock Options, Shares
Effect of Dilutive Securities: Performance Stock Units, Shares
Diluted Net Loss Attributable to Common Stock, Shares	46,570	46,443	46,684	46,414
Basic Net Loss From Continuing Operations Attributable to Common Stock, Per Share	$ (0.52)	$ (0.95)	$ (1.45)	$ (0.56)
Diluted Net Loss From Continuing Operations Attributable to Common Stock, Per Share	$ (0.52)	$ (0.95)	$ (1.45)	$ (0.56)
Discontinued Operations
Earnings Per Share [Line Items]
Net Income From Discontinued Operations		13,763	148,609	4,176
(Income) Loss Allocable to Unvested Stock Grants			(4,782)
Basic Net Loss Attributable to Common Stock		13,763	143,827	4,176
Effect of Dilutive Securities: Stock Options
Effect of Dilutive Securities: Performance Stock Units
Diluted Net Loss Attributable to Common Stock		$ 13,763	$ 143,827	$ 4,176
Basic Net Loss Attributable to Common Stock, Shares		46,443	46,684	46,414
Effect of Dilutive Securities: Stock Options, Shares
Effect of Dilutive Securities: Performance Stock Units, Shares
Diluted Net Loss Attributable to Common Stock, Shares		46,443	46,684	46,414
Basic Net Income From Discontinued Operations Attributable to Common Stock, Per Share		$ 0.29	$ 3.08	$ 0.09
Diluted Net Income From Discontinued Operations Attributable to Common Stock, Per Share		$ 0.29	$ 3.08	$ 0.09