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EQUITY AND NONCONTROLLING INTERESTS - Narrative (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019	Feb. 29, 2020	Dec. 28, 2019	Aug. 28, 2019	Jun. 13, 2019	Apr. 29, 2019
Vital River
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Equity interest	92.00%		92.00%
Noncontrolling interest ownership percentage	8.00%		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%	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)	0.3	0.4	0.3	0.4
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)			0.9	1.0
Vital River
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Contractually defined redemption value	$ 15.6		$ 15.6
Citoxlab
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Contingent consideration liability					$ 2.0
Contractually defined redemption value					$ 4.0