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EQUITY AND LONG-TERM INCENTIVE COMPENSATION (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Per Share
Weighted-average number of common shares used in basic income per share (in shares)	44,072	43,080	43,870	42,948
Dilutive securities — Employee stock options, restricted stock shares and restricted stock units (in shares)	1,104	1,824	991	1,700
Weighted-average number of common shares and dilutive securities used in diluted income per share (in shares)	45,176	44,904	44,861	44,648
Restricted stock shares/units
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	369	252	373	286
Employee Stock
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	909	859	961	871

X

- Definition

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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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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