Income Taxes (Tables)

12 Months Ended

Sep. 30, 2022

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The components of income tax expense (benefit) are as follows:

	Fiscal Year Ended
	September 30, 2022			September 30, 2021			September 30, 2020
Current:
Federal	$	7.5		$	(28.1	)	$	12.5
State		4.7			3.8			5.0
Deferred:
Federal		(3.7	)		28.4			(19.6	)
State		(2.9	)		0.5			(7.5	)
Total income tax (benefit) expense	$	5.6		$	4.6		$	(9.6	)

Schedule of Income Tax Expense (Benefit) Differs from Amount Computed at Federal Statutory Corporate Tax Rate

Income tax expense (benefit) differs from the amount computed at the federal statutory corporate tax rate as follows:

	Fiscal Year Ended
	September 30, 2022			September 30, 2021			September 30, 2020
Federal tax at statutory rate	$	4.1		$	10.7		$	(10.8	)
State tax, net of federal tax (benefit) expense		1.2			3.6			(2.5	)
Tax effect of:
Equity-based compensation		0.6			1.2			1.5
Non-deductible officers’ compensation		0.7			—			—
Provision to return and deferred tax adjustments		(0.3	)		(0.6	)		(0.7	)
Non-deductible promotional and entertainment expense		0.4			0.6			0.6
Goodwill impairment		—			—			3.3
Fuel tax credit and other credits		(0.8	)		(0.8	)		(0.8	)
Change in uncertain tax positions		—			—			(0.1	)
Carryback claim, net of adjustments		(0.3	)		(10.1	)		—
Other, net		—			—			(0.1	)
Income tax expense (benefit)	$	5.6		$	4.6		$	(9.6	)

Components of Net Deferred Tax Asset and Liability Accounts

The components of the Company’s net deferred tax asset and liability accounts resulting from temporary differences between the tax and financial reporting basis of assets and liabilities are as follows:

	September 30, 2022		September 30, 2021
Deferred tax assets:
Interest rate swaps	$	—	$	1.4
Self-insurance reserves		30.7		29.6
Deferred compensation		3.0		2.7
Payroll related accruals		19.7		18.3
Other accrued expenses		5.4		1.8
Allowance for doubtful accounts		1.0		0.8
Lease liabilities		22.6		17.7
Net operating loss carryforward		8.5		11.2
Other non-current deferred tax assets		3.3		1.8
Total non-current deferred tax assets		94.2		85.3
Valuation allowance		—		—
Total deferred tax assets	$	94.2	$	85.3
Deferred tax liabilities:
Intangible assets	$	47.0	$	49.0
Property and equipment		78.5		79.0
Deferred revenue		10.6		8.7
Prepaid assets		0.2		0.4
Lease assets		20.9		15.9
Other non-current deferred tax liabilities		0.2		0.5
Total non-current deferred tax liabilities		157.4		153.5
Total deferred tax liabilities	$	63.2	$	68.2
Classification on balance sheets:
Other Assets	$	5.4	$	2.6
Deferred Tax Liabilities		68.6		70.8