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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Schedule of computation of basic and diluted earnings per share | The following table sets forth the computation of basic and diluted earnings per share:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Numerator: |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 70,539 |  |  | $ | 106,126 |  |  | $ | 200,227 |  |  | $ | 223,322 |
Denominator (shares in 000's): |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding | 64,821 |  |  | 65,806 |  |  | 65,245 |  |  | 65,769 |
Effect of dilutive securities - Stock options and awards | 831 |  |  | 896 |  |  | 810 |  |  | 910 |
Diluted weighted average shares outstanding | 65,652 |  |  | 66,702 |  |  | 66,055 |  |  | 66,679 |
Basic earnings per share | $ | 1.09 |  |  | $ | 1.61 |  |  | $ | 3.07 |  |  | $ | 3.40 |
Diluted earnings per share | $ | 1.07 |  |  | $ | 1.59 |  |  | $ | 3.03 |  |  | $ | 3.35 |

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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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