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Net Sales for the second and third fiscal quarters percentage of annual net sales.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Amount of interest capitalized during the period.

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Amount of interest income earned from interest bearing assets classified as other.

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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Amount of valuation reserve for inventory.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jul. 03, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019	Oct. 01, 2019
Significant Accounting Policies [Line Items]
Percentage of annual net sales from combined second and third quarter sales	75.00%
Advertising expenses		$ 165.7	$ 147.4	$ 120.3
Research and development charge		45.4	39.7	39.6
Product registration costs		12.3	11.0	11.0
Inventory adjustments			0.2
Adjustment to reflect inventories at net realizable values		22.5	31.3
Interest capitalized on capital projects		0.8	0.4	0.5
Noncash investing activities for unpaid liabilities incurred		41.6	26.4	22.1
Unamortized capitalized software costs		17.0	18.8
Amortization of capitalized internal use computer software		4.5	4.0	2.9
Recognition of accumulated foreign currency translation loss		(1.8)	0.9	1.6
Operating lease right-of-use-assets		293.0	156.0
Current operating lease liabilities		66.4	47.5
Operating lease non-current lease liabilities		$ 234.4	$ 113.3
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]		Other Liabilities, Current	Other Liabilities, Current
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]		Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Other assets
Significant Accounting Policies [Line Items]
Operating lease right-of-use-assets					$ 129.6
Other current liabilities
Significant Accounting Policies [Line Items]
Current operating lease liabilities					45.4
Other liabilities
Significant Accounting Policies [Line Items]
Current operating lease liabilities					$ 88.8
Officer \| Options \| Project Focus
Significant Accounting Policies [Line Items]
Expiration period (in years)		10 years
Director
Significant Accounting Policies [Line Items]
Award vesting period (in years)		1 year
Sunlight Supply
Significant Accounting Policies [Line Items]
Post-closing net working capital adjustment obligation				6.6
Minimum
Significant Accounting Policies [Line Items]
Award vesting period (in years)		3 years
Expected forfeiture rate		15.00%
Intangible assets amortization period		3 years
Minimum \| Officer \| Performance units \| Project Focus
Significant Accounting Policies [Line Items]
Vesting percent of target award		50.00%
Maximum
Significant Accounting Policies [Line Items]
Award vesting period (in years)		5 years
Intangible assets amortization period		25 years
Maximum \| Officer \| Performance units \| Project Focus
Significant Accounting Policies [Line Items]
Vesting percent of target award		250.00%
Other Nonoperating Income (Expense)
Significant Accounting Policies [Line Items]
Interest income on loans receivable		$ 3.8	$ 7.6	$ 8.6