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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Schedule Computing Earnings Per Share | The amounts used in computing earnings per share and the weighted average number of shares of potentially dilutive securities are as follows:
| Three months ended June 30, | Six months ended June 30,
(in thousands, except market price and earnings per share) | 2017 | 2016 | 2017 | 2016
Net income attributable to the Company | $1,117 |  | $10,367 |  | $11,956 |  | $23,868 |
Weighted average number of shares: |  |  |  |  |  |  |  |
Weighted average number of shares used in |  |  |  |  |  |  |  |
calculating basic net income per share | 32,166 |  | 32,093 |  | 32,147 |  | 32,067 |
Effect of dilutive stock-based compensation plans: |  |  |  |  |  |  |  |
Stock options | 34 |  | 38 |  | 35 |  | 39 |
Weighted average number of shares used in |  |  |  |  |  |  |  |
calculating diluted net income per share | 32,200 |  | 32,131 |  | 32,182 |  | 32,106 |
Average market price of common stock used |  |  |  |  |  |  |  |
for calculation of dilutive shares | $48.44 |  | $39.47 |  | $47.47 |  | $37.40 |
Net income per share: |  |  |  |  |  |  |  |
Basic | $0.03 |  | $0.32 |  | $0.37 |  | $0.74 |
Diluted | $0.03 |  | $0.32 |  | $0.37 |  | $0.74 |

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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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