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, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Basic and Diluted Earnings Per Common Share        
Basic weighted average number of shares outstanding 40,283 40,323 40,472 40,273
Effect of dilutive securities:        
Convertible debt [1] 0 1,105 0 1,754
Unvested restricted stock 572 583 628 558
Diluted average shares outstanding 40,855 42,011 41,100 42,585
Net earnings as reported (in dollars) $ 54,135 $ 42,550 $ 151,847 $ 107,702
Interest attributable to convertible senior notes, net of income taxes (in dollars) [1] 0 201 0 942
Net earnings for diluted earnings per share (in dollars) $ 54,135 $ 42,751 $ 151,847 $ 108,644
Basic earnings per share (in dollars per share) $ 1.34 $ 1.06 $ 3.75 $ 2.67
Diluted earnings per share (in dollars per share) [1] $ 1.33 $ 1.02 $ 3.69 $ 2.55
Antidilutive stock not included in the calculation of diluted earnings per share 0 2 1 4
[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 based on the number of days our Convertible Notes were outstanding during the period. All of the Convertible Notes were retired in the second half of 2017.