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Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share Basic and Diluted |
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Numerator — basic and diluted |  |  |  |  |  |  |
Net income | $ | 64,598 |  |  | $ | 43,609 |  |  | $ | 127,243 |  |  | $ | 82,554 |
Denominator |  |  |  |  |  |  |
Weighted average number of common shares outstanding — basic | 36,960 |  |  | 37,001 |  |  | 36,970 |  |  | 36,851 |
Effect of dilutive stock options | 459 |  |  | 558 |  |  | 445 |  |  | 430 |
Effect of dilutive restricted shares | 749 |  |  | 712 |  |  | 778 |  |  | 661 |
Weighted average number of common shares outstanding — diluted | 38,168 |  |  | 38,271 |  |  | 38,193 |  |  | 37,942 |
Earnings per common share — basic | $ | 1.75 |  |  | $ | 1.18 |  |  | $ | 3.44 |  |  | $ | 2.24 |
Earnings per common share — diluted | $ | 1.69 |  |  | $ | 1.14 |  |  | $ | 3.33 |  |  | $ | 2.18 |
Antidilutive stock options and restricted shares | 25 |  |  | 44 |  |  | 38 |  |  | 330 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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