SHAREHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Details) In Thousands, unless otherwise specified	3 Months Ended
Mar. 28, 2015	Mar. 29, 2014
Income (Loss) Per Share
Weighted-average number of common shares used in basic income (loss) per share	40,503	44,236
Dilutive securities - Restricted stock shares and restricted stock units		846
Weighted-average number of common shares and dilutive securities used in diluted income (loss) per share	40,503	45,082
Stock options
Stock-based Compensation
Options outstanding (in shares)		0
Restricted stock shares, restricted stock units, and stock options
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted loss per share	1,162

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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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Number of options outstanding, including both vested and non-vested options.

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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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