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SHAREHOLDERS' EQUITY AND LONG-TERM INCENTIVE COMPENSATION (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jul. 02, 2016	Jun. 27, 2015
Income Per Share
Weighted-average number of common shares used in basic income (loss) per share	41,594	40,602	41,443	40,553
Dilutive securities — Restricted stock shares and restricted stock units	0	0	311	0
Weighted-average number of common shares and dilutive securities used in diluted income (loss) per share	41,594	40,602	41,754	40,553
Restricted stock shares/units
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	1,365	853	1,254	845
Stock options
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	1,417		1,251	323
Restricted Stock and Restricted Stock Units Excluded due to Net Loss in Period
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	359
Employee Stock Option Excluded due to Net Loss in Period
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	1