Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER SHARE - Schedule of Basic and Diluted Earnings per Common Share (Details)

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EARNINGS PER SHARE - Schedule of Basic and Diluted Earnings per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Basic and Diluted (Loss)/Earnings Per Common Share        
Basic weighted average number of shares outstanding 40,022 39,663 39,958 39,568
Effect of dilutive securities:        
Convertible debt [1] 2,176 2,176 2,176 2,176
Stock options and unvested restricted stock 410 353 407 390
Diluted average shares outstanding 42,608 42,192 42,541 42,134
Net earnings as reported (in dollars) $ 36,887 $ 30,308 $ 97,734 $ 75,841
Interest attributable to convertible senior notes, net of income taxes (in dollars) 403 385 1,210 1,189
Net earnings for diluted earnings per share (in dollars) $ 37,290 $ 30,693 $ 98,944 $ 77,030
Basic earnings per share (in dollars per share) $ 0.92 $ 0.76 $ 2.45 $ 1.92
Diluted earnings per share (in dollars per share) [1] $ 0.88 $ 0.73 $ 2.33 $ 1.83
Antidilutive stock options not included in the calculation of diluted earnings per share 17 3 5 0
[1] In accordance with ASC 260-10, Earnings Per Share, ("ASC 260-10") we calculate the dilutive effect of convertible securities using the "if-converted" method.