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Earnings per Common Share (Details) - 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 Share, Diluted, by Common Class, Including Two Class Method [Line Items] |  |  |  |
Net Income | $ 41,749 | $ 27,132 | $ 81,719 | $ 56,331
Earnings allocated to participating securities - preferred shares | 0 | 0 | 0 | 3
Earnings allocated to participating securities - nonvested restricted shares | 473 | 362 | 909 | 759
Earnings allocated to common shareholders, Basic | $ 41,276 | $ 26,770 | $ 80,810 | $ 55,569
Weighted average common shares outstanding | 72,385 | 57,520 | 72,343 | 57,437
Basic earnings per common share | $ 0.57 | $ 0.47 | $ 1.12 | $ 0.97
Earnings allocated to common shareholders, Diluted | $ 41,276 | $ 26,770 | $ 80,810 | $ 55,569
Dilutive effect of equity awards and warrants | 5 | 5 | 4 | 5
Weighted average diluted common shares outstanding | 72,390 | 57,525 | 72,347 | 57,442
Diluted earnings per common share | $ 0.57 | $ 0.47 | $ 1.12 | $ 0.97
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive. | 3 | 12 | 7 | 13

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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