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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Schedule of information used to compute basic and diluted earnings per share | The table below presents the information used to compute basic and diluted earnings per share for the years ended December 31, 2017, 2016 and 2015:
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
| (In thousands, except per share data)
Net income | $ | 41,204 |  |  | $ | 46,992 |  |  | $ | 45,868 |
Weighted average shares outstanding - basic | 30,401 |  |  | 31,009 |  |  | 32,238 |
Dilutive effect of employee stock options and awards | 238 |  |  | 216 |  |  | 413 |
Weighted average shares outstanding - diluted | 30,638 |  |  | 31,225 |  |  | 32,651 |
Basic earnings per share | $ | 1.36 |  |  | $ | 1.52 |  |  | $ | 1.42 |
Diluted earnings per share | $ | 1.34 |  |  | $ | 1.50 |  |  | $ | 1.40 |

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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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