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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Analysis of Basic and Diluted Earnings Per Share | The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
Net income |  | $ | 14,057 |  |  | $ | 11,339 |  |  | $ | 39,094 |  |  | $ | 31,649 |
Dividends and undistributed earnings allocated to participating securities(1) |  | (39 | ) |  | (46 | ) |  | (110 | ) |  | (134 | )
Net income available to common shareholders |  | $ | 14,018 |  |  | $ | 11,293 |  |  | $ | 38,984 |  |  | $ | 31,515 |
Weighted-average common shares outstanding for basic EPS |  | 15,580,782 |  |  | 15,515,189 |  |  | 15,565,355 |  |  | 15,505,698 |
Dilutive effect of stock-based awards(2) |  | 58,204 |  |  | 73,819 |  |  | 56,045 |  |  | 74,374 |
Weighted-average common and potential common shares for diluted EPS |  | 15,638,986 |  |  | 15,589,008 |  |  | 15,621,400 |  |  | 15,580,072 |
Earnings per common share(1): |  |  |  |  |  |  |  |  |  |
Basic EPS |  | $ | 0.90 |  |  | $ | 0.72 |  |  | $ | 2.50 |  |  | $ | 2.03 |
Diluted EPS |  | $ | 0.90 |  |  | $ | 0.72 |  |  | $ | 2.50 |  |  | $ | 2.02 |
(1) Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends. (2) Represents the effect of the assumed exercise of stock options and vesting of restricted shares and restricted stock units utilizing the treasury stock method. Not included are the unvested LTIP awards, which are the Company's performance-based awards.

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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://www.xbrl.org/2003/role/presentationRef -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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