Weighted Average Dilutive and Anti-Dilutive Securities (Detail)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Potential dilutive warrants     32,523
Potential dilutive restricted stock 2,529 1,464 1,296
Anti-dilutive securities 35,569 37,779 10,757