EARNINGS PER SHARE (Details)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Reconciliation between basic and diluted earnings per share [Abstract]
Weighted average number of common shares outstanding (in shares)	32,383,863	31,979,894
Dilutive impact of stock based compensation (in shares)	285,633	311,864
Weighted average number of common and common equivalent shares outstanding for the period (in shares)	32,669,496	32,291,758
Number of common shares outstanding at the end of the period (in shares)	32,287,200	31,891,418
Weighted average number of anti-dilutive shares excluded from the computation of diluted earnings per share (in shares)	270,792	591,028

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.

+ References+ Details

- 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