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Selected Statement of Operations Data - Weighted Average Number of Shares for Computation of Earnings (Loss) Per Share (Detail)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Earnings Per Share [Abstract]

Weighted average number of shares issued and outstanding (net of treasury shares) - used in computation of basic earnings (loss) per share

42,571

43,501

39,909

Add - incremental shares from assumed exercise of options

682

907

Weighted average number of shares used in computation of diluted earnings per share

43,253

43,501

^[1]

40,816

^[1]

[1]	See Note 1a(ii).

- Definition

This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).

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