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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2015
Accounting Policies [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The Company calculated the fair value for options with the following weighted-average assumptions for 2015, 2014, and 2013:
|  | December 31,
|  | 2015 |  | 2014 |  | 2013
Risk-free interest rate |  | 2.00 | % |  | 2.24 | % |  | 1.38 | %
Dividend yield |  | 0.6 | % |  | 0.5 | % |  | 0.8 | %
Volatility factors |  | 48.8 | % |  | 48.2 | % |  | 47.9 | %
Weighted-average expected life |  | 8.0 years |  |  | 8.0 years |  |  | 8.0 years |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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