Quarterly report pursuant to Section 13 or 15(d)

Earnings/(Loss) Per Share (Details)

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Earnings/(Loss) Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Basic and Diluted (Loss)/Earnings Per Common Share        
Basic weighted average number of shares outstanding 36,151 32,755 35,976 32,694
Convertible debt 2,176 [1] 0 [1] 2,176 [1] 0 [1]
Effect of dilutive securities:        
Stock options and restricted stock 431 349 510 392
Diluted weighted average shares outstanding 38,758 33,104 38,662 33,086
Net earnings/(loss) $ 28,143 $ 8,005 $ 40,184 $ 3,251
Interest on Convertible Debt, Net of Tax 393 0 782 0
Net Income (Loss) Available to Common Stockholders, Diluted $ 28,536 $ 8,005 $ 40,966 $ 3,251
Basic (loss)/income per share $ 0.78 $ 0.24 $ 1.12 $ 0.10
Diluted (loss)/income per share $ 0.74 [1] $ 0.24 [1] $ 1.06 [1] $ 0.10 [1]
Antidilutive stock options not included in the calculation of diluted income per share 5 260 3 255
[1] (1)In the third quarter of 2012, we issued $126.5 million of 1.875% convertible senior notes convertible into shares of our common stock at a rate of 17.1985 shares per $1,000 principle amount. In accordance with ASC Subtopic 260-10, Earnings Per Share, ("ASC 260-10") we calculate the dilutive effect of convertible securities using the "if-converted" method.