EQUITY AND LONG-TERM INCENTIVE COMPENSATION (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Income Per Share
Weighted-average number of common shares used in basic income per share (in shares)	44,590	43,914	44,452	43,767
Dilutive securities — Employee stock options, restricted stock shares and restricted stock units (in shares)	1,058	978	1,168	983
Weighted-average number of common shares and dilutive securities used in diluted income per share (in shares)	45,648	44,892	45,620	44,750
Restricted stock shares/units
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	409	461	345	379
Employee stock option
Stock-based Compensation
Number of options or units that were excluded from the computation of diluted income per share	944	996	803	962