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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Outstanding Commodity Contracts (Details)	6 Months Ended		12 Months Ended
	Apr. 03, 2021 lb T gal	Mar. 28, 2020 T lb gal	Sep. 30, 2020 T lb gal
Urea (in tons)
Derivative [Line Items]
Outstanding commodity contracts, mass | T	6,000	30,000	76,500
Resin (in pounds)
Derivative [Line Items]
Outstanding commodity contracts, mass | lb	0	8,100,000	9,100,000
Diesel (in gallons)
Derivative [Line Items]
Outstanding commodity contracts, volume	4,368,000	5,418,000	5,838,000
Heating Oil (in gallons)
Derivative [Line Items]
Outstanding commodity contracts, volume	1,680,000	1,890,000	2,142,000

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