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Earnings per Common Share (Details) - Schedule of earnings per common share - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Earnings per common share: |  |  |  |
Income attributable to common stock | $ 17,490 | $ 7,659 | $ 21,724 | $ 19,499
Earnings allocated to participating securities | 37 | 24 | 54 | 64
Net income | $ 17,527 | $ 7,683 | $ 21,778 | $ 19,563
Weighted average common shares outstanding, including participating securities | 32,134 | 32,008 | 32,106 | 31,991
Weighted average participating securities | (20) | (102) | (38) | (105)
Weighted average common shares outstanding | 32,114 | 31,906 | 32,068 | 31,886
Incremental shares from assumed conversions of options, performance units and restricted shares | 207 | 350 | 208 | 347
Weighted average common and equivalent shares outstanding | 32,321 | 32,256 | 32,276 | 32,233
Earnings per common share: |  |  |  |
Basic | $ 0.54 | $ 0.24 | $ 0.68 | $ 0.61
Diluted | $ 0.54 | $ 0.24 | $ 0.67 | $ 0.60

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