Earnings Per Share - Reconciliation of Numerators and Denominators Used in Computations of Both Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended				6 Months Ended
	Aug. 26, 2013	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Basic loss per share computation:
Loss from continuing operations		$ (963)	[1]	$ (32,057)	[1]	$ (10,755)		$ (52,797)	[1]
Average common shares		93,561,305	[1],[2]	93,417,417	[1],[2]	93,977,672	[2]	93,215,130	[1],[2]
Basic earnings (loss) per share from continuing operations (in dollars per share)		$ (0.01)	[2]	$ (0.34)	[2]	$ (0.11)	[2]	$ (0.57)	[2]
Diluted loss per share computation:
Loss from continuing operations		$ (963)	[1]	$ (32,057)	[1]	$ (10,755)		$ (52,797)	[1]
Average common shares		93,561,305	[1],[2]	93,417,417	[1],[2]	93,977,672	[2]	93,215,130	[1],[2]
Stock option conversion		0	[1],[3]	0	[1],[3]	0	[3]	0	[3]
Stock units		0	[1],[4]	0	[1],[4]	0	[4]	0	[4]
Average common shares — diluted		93,561,305	[2]	93,417,417	[2]	93,977,672	[2]	93,215,130	[2]
Diluted earnings (loss) per share from continuing operations (in dollars per share)		$ (0.01)	[2]	$ (0.34)	[2]	$ (0.11)	[2]	$ (0.57)	[2]
Reverse stock split ratio	0.5
Common Stock
Diluted loss per share computation:
Anti-dilutive securities excluded		3,649,711		6,981,822		3,752,341		7,283,324,000
Stock Units
Diluted loss per share computation:
Anti-dilutive securities excluded		201,976		756,537		298,959		777,579,000

[1] All applicable share data and per share amounts have been adjusted retroactively for the 1-for-2 reverse stock split effected on August 26, 2013.

[2] For the periods ended June 30, 2013, basic and diluted earnings (loss) per common share and average basic and diluted shares outstanding have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected August 26, 2013.

[3] Anti-dilutive common shares excluded 3,649,711, 6,981,822, 3,752,341, & 7,283,324

[4] Anti-dilutive stock units excluded 208,515 , 756,537, 298,759, & 777,579