Quarterly report pursuant to Section 13 or 15(d)

Per Share Data and Stockholders' Equity - Dilutive Effect on Earnings Per Share (Details)

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Per Share Data and Stockholders' Equity - Dilutive Effect on Earnings Per 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
Weighted Average Shares        
Weighted average common shares outstanding 42,673 43,496 42,708 44,281
Stock compensation plans (shares) 321 315 256 304
Diluted earnings (loss) (shares) 42,994 43,811 42,964 44,585
From Continuing Operations        
Earnings (loss) $ 15,301 $ 19,730 $ 30,409 $ 32,024
Non-vested restricted stock (14) (18) (29) (28)
Basic earnings (loss) $ 15,287 $ 19,712 $ 30,380 $ 31,996
Basic earnings (loss) per share (usd per share) $ 0.36 $ 0.45 $ 0.71 $ 0.72
From Discontinued Operations        
Earnings (loss) $ (183) $ (290) $ (579) $ (993)
Non-vested restricted stock 0 0 0 0
Basic earnings (loss) $ (183) $ (290) $ (579) $ (993)
Basic earnings (loss) per share (usd per share) $ (0.01) $ 0 $ (0.01) $ (0.02)
Net Income (Loss)        
Earnings (loss) $ 15,118 $ 19,440 $ 29,830 $ 31,031
Non-vested restricted stock (14) (18) (29) (28)
Basic earnings (loss) $ 15,104 $ 19,422 $ 29,801 $ 31,003
Basic earnings (loss) per share (usd per share) $ 0.35 $ 0.45 $ 0.70 $ 0.70
Effect of dilutive securities:        
Income (Loss) From Continuing Operations, Diluted earnings (loss) $ 15,287 $ 19,712 $ 30,380 $ 31,996
Income (Loss) From Discontinued Operations, Diluted earnings (loss) (183) (290) (579) (993)
Net Income (Loss), Diluted earnings (loss) $ 15,104 $ 19,422 $ 29,801 $ 31,003
Earnings (loss) per share from continuing operations (usd per share) $ 0.36 $ 0.45 $ 0.71 $ 0.72
Earnings (loss) per share from discontinued operations (usd per share) (0.01) (0.01) (0.02) (0.02)
Earnings (loss) per common share (usd per share) $ 0.35 $ 0.44 $ 0.69 $ 0.70