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INCOME TAXES (Tables)

12 Months Ended

Sep. 30, 2023

Income Tax Disclosure [Abstract]

Provision (Benefit) For Income Taxes Allocated to Continuing Operations

The provision (benefit) for income taxes allocated to continuing operations consisted of the following:

			Year Ended September 30,
			2023						2022						2021
Current:
Federal			$	3.7					$	22.8					$	113.7
State			0.6						9.3						31.6
Foreign			1.6						8.7						2.7
Total current			5.9						40.8						148.0
Deferred:
Federal			(62.1)						(125.5)						9.1
State			(5.2)						(23.3)						1.5
Foreign			(11.8)						(12.6)						1.2
Total deferred			(79.1)						(161.4)						11.8
Income tax expense (benefit) from continuing operations			$	(73.2)					$	(120.6)					$	159.8

The Domestic and Foreign Components of Income From Continuing Operations Before Income Taxes

The domestic and foreign components of income (loss) from continuing operations before income taxes were as follows:

			Year Ended September 30,
			2023						2022						2021
Domestic			$	(376.2)					$	(427.3)					$	670.2
Foreign			(77.1)						(130.8)						6.9
Income (loss) from continuing operations before income taxes			$	(453.3)					$	(558.1)					$	677.1

Reconciliation of the Federal Corporate Income Tax Rate and the Effective Tax Rate

A reconciliation of the federal corporate income tax rate and the effective tax rate on income (loss) from continuing operations before income taxes is summarized below:

			Year Ended September 30,
			2023						2022						2021
Statutory income tax rate			21.0		%				21.0		%				21.0		%
Effect of foreign operations			0.2						(1.6)						(0.2)
State taxes, net of federal benefit			3.2						2.6						3.9
Effect of other permanent differences			(0.8)						2.8						(1.1)
Research and Experimentation and other federal tax credits			0.2						0.2						(0.2)
Effect of tax contingencies			0.1						(1.8)						—
Change in valuation allowances			(8.7)						(0.9)						0.1
Other			1.0						(0.7)						0.1
Effective income tax rate			16.2		%				21.6		%				23.6		%

Components of Deferred Income Tax Assets and Liabilities

Deferred income taxes arise from temporary differences between financial reporting and tax reporting bases of assets and liabilities, and operating loss and tax credit carryforwards for tax purposes. The components of the deferred income tax assets and liabilities were as follows:

			September 30,
			2023						2022
DEFERRED TAX ASSETS
Intangible assets			$	79.2					$	60.8
Lease liabilities			70.0						70.7
Net operating loss carryovers			67.3						21.7
Accrued liabilities			48.7						80.8
Interest limitation carryforward			35.9						—
Convertible debt investments			33.4						25.3
Inventories			26.1						43.2
Foreign tax credit carryovers			16.3						15.0
Outside basis difference in equity investments			10.4						—
Accounts receivable			8.9						8.7
Other			14.9						12.5
Gross deferred tax assets			411.1						338.7
Valuation allowance			(87.7)						(40.7)
Total deferred tax assets			323.4						298.0
DEFERRED TAX LIABILITIES
Property, plant and equipment			(62.7)						(65.8)
Lease right-of-use assets			(62.1)						(68.6)
Derivative contracts			(5.8)						(10.5)
Outside basis difference in equity investments			—						(14.8)
Other			(4.1)						(3.3)
Total deferred tax liabilities			(134.7)						(163.0)
Net deferred tax asset			$	188.7					$	135.0

Reconciliation of the Unrecognized Tax Benefits

A reconciliation of the unrecognized tax benefits is as follows:

			Year Ended September 30,
			2023						2022						2021
Balance at beginning of year			$	35.8					$	24.1					$	30.2
Additions for tax positions of the current year			0.2						11.3						0.3
Additions for tax positions of prior years			3.8						2.2						6.1
Reductions for tax positions of prior years			(0.2)						(2.5)						(5.9)
Settlements with tax authorities			(0.1)						1.3						0.2
Expiration of statutes of limitation			(4.9)						(0.6)						(6.8)
Balance at end of year			$	34.6					$	35.8					$	24.1

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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