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Earnings Per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Earnings Per Share | 8. 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:
(in thousands, except market price and earnings per share) |  | 2016 |  | 2015 |  | 2014
Net income attributable to the Company |  | $52,733 |  |  | $57,279 |  |  | $41,569 |
Weighted average number of shares: |  |  |  |  |  |  |  |  |
Weighted average number of shares used in |  |  |  |  |  |  |  |  |
calculating basic net income per share |  | 32,086 |  |  | 31,978 |  |  | 31,832 |
Effect of dilutive stock-based compensation plans: |  |  |  |  |  |  |  |  |
Stock options |  | 39 |  |  | 58 |  |  | 99 |
Long-term incentive plan |  | 45 |  |  | 52 |  |  | 57 |
Weighted average number of shares used in |  |  |  |  |  |  |  |  |
calculating diluted net income per share |  | 32,170 |  |  | 32,088 |  |  | 31,988 |
Average market price of common stock used |  |  |  |  |  |  |  |  |
for calculation of dilutive shares |  | $40.25 |  |  | $36.68 |  |  | $36.29 |
Net income per share: |  |  |  |  |  |  |  |  |
Basic |  | $1.64 |  |  | $1.79 |  |  | $1.31 |
Diluted |  | $1.64 |  |  | $1.79 |  |  | $1.30 |
Shares outstanding, net of treasury shares, were 32.1 million as of December 31, 2016, 32.0 million as of December 31, 2015, and 31.9 million as of December 31, 2014.

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