Deferred Tax Assets, Operating Loss Carryforwards, Domestic, Subject To Limitation

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- Definition

Effective Tax Rate Reconciliation, Discrete Item, Foreign Income Tax, Increase (Decrease) In Basis Points

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Effective Tax Rate Reconciliation, Discrete Item, Increase (Decrease) In Basis Points

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Goodwill, Non-Deductible Impact

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Operating Loss Carryforwards, State and Local

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Tax Loss Carryforwards, Maximum Period Carried Forward

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Tax Loss Carryforwards, Minimum Period Carried Forward

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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- Definition

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Amount of restructuring charges, remediation cost, and asset impairment loss.

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Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Amount of unrecognized tax benefits.

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Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

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Amount of interest expense accrued for an underpayment of income taxes.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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INCOME TAXES - Additional Information (Details) $ in Millions	12 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Investments, Owned, Federal Income Tax Note [Line Items]
Statutory income tax rate	21.00%	21.00%	21.00%
Valuation allowance for net operating losses	$ 40.7	$ 32.3
Foreign tax credit carryovers	15.0	14.9
Deferred tax assets subject to limitation	10.7	10.8
Gross unrecognized tax benefits	35.8	24.1	$ 30.2	$ 29.5
Unrecognized tax benefits that would have an impact on the effective tax rate	31.5	19.9	25.9
Unrecognized tax benefits accrued payment of interest	3.2	2.7	2.8
Unrecognized tax benefits accrued payment of penalties	$ 1.6	1.6	1.6
Discrete item, foreign income tax, increase (decrease) in basis points	340
Discrete item, increase (decrease) in basis points	260
Deferred Tax Assets, Net of Valuation Allowance	$ 298.0	163.7
Deferred Tax Liabilities, Net		(47.8)
Impairment, restructuring and other	693.1	4.3	0.8
Income Tax Expense (Benefit)	120.6	(159.8)	(123.7)
Operating expenses \| Goodwill and intangible asset impairments
Investments, Owned, Federal Income Tax Note [Line Items]
Impairment, restructuring and other	668.3	0.0	0.0
Impairment, Restructuring, And Other
Investments, Owned, Federal Income Tax Note [Line Items]
Income Tax Expense (Benefit)	148.3
Goodwill, Non-Deductible Impact	18.8
Other assets
Investments, Owned, Federal Income Tax Note [Line Items]
Deferred Tax Assets, Net of Valuation Allowance	143.5
Other liabilities
Investments, Owned, Federal Income Tax Note [Line Items]
Deferred Tax Liabilities, Net	(8.5)
AeroGrow International Inc.
Investments, Owned, Federal Income Tax Note [Line Items]
Statutory tax benefit of net operating loss carryovers and related valuation allowances	10.5
Foreign Country
Investments, Owned, Federal Income Tax Note [Line Items]
Valuation allowance for net operating losses	2.9
Foreign net operating losses	3.7	1.8
Foreign tax credit carryovers	15.0	14.9
U.S. state and local tax authorities
Investments, Owned, Federal Income Tax Note [Line Items]
Valuation allowance for net operating losses	4.8
Foreign tax credit carryovers	1.4	1.4
State net operating losses carryforward	$ 7.3	1.7
State net operating losses carryforward period, minimum	5 years
State net operating losses carryforward period, maximum	20 years
Valuation allowance for state credits	$ 1.2
Discontinued Operations
Investments, Owned, Federal Income Tax Note [Line Items]
Gross unrecognized tax benefits	0.2	$ 0.2	$ 6.4
State Administration of Taxation, China \| Foreign Country
Investments, Owned, Federal Income Tax Note [Line Items]
Valuation allowance for net operating losses	$ 6.3