EARNINGS PER SHARE (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Reconciliation between basic and diluted earnings per share [Abstract]
Weighted average number of common shares outstanding (in shares)	32,425,798	32,035,503	32,402,571	32,005,514
Dilutive impact of stock based compensation (in shares)	277,434	298,002	279,361	305,042
Weighted average number of common and common equivalent shares outstanding for the period (in shares)	32,703,232	32,333,505	32,681,932	32,310,556
Number of common shares outstanding at the end of the period (in shares)	32,371,588	31,920,554	32,371,588	31,920,554
Weighted average number of anti-dilutive shares excluded from the computation of diluted earnings per share (in shares)	318,858	701,099	266,801	646,046

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References+ Details

- Definition

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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+ Details