Quarterly report pursuant to Section 13 or 15(d)

Reconciliation of Components Used to Derive Basic and Diluted EPS (Detail)

v2.4.0.6
Reconciliation of Components Used to Derive Basic and Diluted EPS (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Earnings Per Share [Line Items]        
Net Income $ 13,279 $ 4,203 $ 76,395 $ 22,641
Weighted-Average Shares, Basic 31,475,976 18,888,474 31,474,042 18,886,415
Weighted-Average Shares, Effect of Dilutive Securities - Options, Warrants and Unvested Restricted Stock 69,135 18,825 32,725 19,428
Weighted-Average Shares, Diluted 31,545,111 18,907,299 31,506,767 18,905,843
Per Share Amount, Basic $ 0.42 $ 0.22 $ 2.43 $ 1.20
Per Share Amount, Effect of Dilutive Securities Options, Warrants and Unvested Restricted Stock     $ (0.01)  
Per Share Amount, Diluted $ 0.42 $ 0.22 $ 2.42 $ 1.20