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 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Basic and Diluted (Loss)/Earnings Per Common Share        
Basic weighted average number of shares outstanding 36,226 35,216 36,060 33,541
Convertible debt 2,176 [1] 0 [1] 2,176 [1] 0 [1]
Effect of dilutive securities:        
Stock options and unvested restricted stock 463 545 535 469
Diluted weighted average shares outstanding 38,865 35,761 38,771 34,010
Net earnings/(loss) $ 38,191 $ 6,784 $ 78,375 $ 10,035
Interest attributable to convertible senior notes, net of income taxes 393 0 1,180 0
Net earnings for earnings per share $ 38,584 $ 6,784 $ 79,555 $ 10,035
Basic (loss)/income per share $ 1.05 $ 0.19 $ 2.17 $ 0.30
Diluted (loss)/income per share $ 0.99 [1] $ 0.19 [1] $ 2.05 [1] $ 0.30 [1]
Antidilutive stock options not included in the calculation of diluted income per share 10 530 5 348
[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.