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EQUITY AND NONCONTROLLING INTERESTS - Narrative (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020	Feb. 29, 2020	Dec. 28, 2019	Apr. 29, 2019
Vital River
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Equity interest						92.00%
Noncontrolling interest ownership percentage	8.00%		8.00%
Citoxlab
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Equity interest						90.00%
Noncontrolling interest ownership percentage						10.00%	10.00%
Supplier
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Equity interest						80.00%
Noncontrolling interest ownership percentage						20.00%
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	0.2	0.6	0.2	0.6
Restricted Stock and Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)			0.7	0.9
Vital River
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Contractually defined redemption value	$ 20.9		$ 20.9
Citoxlab
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Contractually defined redemption value					$ 4.0