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Earnings per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Earnings Per Share [Abstract] |  |  |  |
Net income from continuing operations | $ 32,066 | $ 25,486 | $ 59,011 | $ 67,475
Preferred stock dividends | (10) | (11) | (30) | (29)
Income from continuing operations available to common equity | 32,056 | 25,475 | 58,981 | 67,446
Dividends and undistributed earnings allocated to participating securities | (36) | (38) | (62) | (105)
Income from continuing operations available to common shareholders | 32,020 | 25,437 | 58,919 | 67,341
Net income from discontinued operations | 0 | (1,300) | 0 | (455)
Preferred stock dividends | 0 | 1 | 0 | (1)
Income from discontinued operations available to common equity | 0 | (1,299) | 0 | (456)
Dividends and undistributed earnings allocated to participating securities | 0 | 2 | 0 | 1
Income from discontinued operations available to common shareholders | $ 0 | $ (1,297) | $ 0 | $ (455)
Basic weighted-average shares outstanding (shares) | 38,074 | 37,487 | 37,970 | 37,407
Stock options and other stock compensation (shares) | 628 | 625 | 722 | 501
Diluted weighted-average shares outstanding (shares) | 38,702 | 38,112 | 38,692 | 37,908
Antidilutive stock options (shares) | 0 | 0 | 0 | 0
Earnings per share attributable to continuing operations: |  |  |  |
Earnings per share attributable to continuing operations, basic (dollars per share) | $ 0.84 | $ 0.68 | $ 1.55 | $ 1.80
Earnings per share attributable to continuing operations, diluted (dollars per share) | 0.83 | 0.67 | 1.52 | 1.77
Earnings (loss) per share attributable to discontinued operations: |  |  |  |
Earnings per share attributable to discontinued operations, basic (dollars per share) | 0.00 | (0.04) | 0.00 | (0.01)
Earnings per share attributable to discontinued operations, diluted (dollars per share) | $ 0.00 | $ (0.04) | $ 0.00 | $ (0.01)

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