Income Taxes (Tables)

12 Months Ended

Oct. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Geographic Sources of Income From Continuing Operations Before Income Taxes

Geographic Sources of Income from Continuing Operations Before Income Taxes

	Years Ended October 31,
(in millions)	2021		2020		2019
United States	$	152.8	$	45.2	$	137.1
Foreign	27.0		8.1		23.1
Income from continuing operations before income taxes	$	179.8	$	53.3	$	160.2

Schedule of Components of Income Tax (Provision) Benefit

Components of Income Tax (Provision) Benefit

	Years Ended October 31,
(in millions)	2021		2020		2019
Current:
Federal	$	(66.3)	$	(59.3)	$	(6.4)
State	(27.4)		(28.6)		(10.7)
Foreign	(7.8)		(1.7)		(5.9)
Deferred:
Federal	34.9		23.2		(8.5)
State	13.2		12.5		(1.6)
Foreign	(0.1)		0.9		0.4
Income tax provision	$	(53.5)	$	(53.1)	$	(32.7)

Reconciliation of U.S. Statutory Tax Rate to Annual Effective Tax Rate

Reconciliation of the U.S. Statutory Tax Rate to Annual Effective Tax Rate

	Years Ended October 31,
	2021		2020		2019
U.S. statutory rate	21.0	%	21.0	%	21.0	%
State and local income taxes, net of federal tax benefit	6.8		(0.6)		5.9
Federal and state tax credits	(2.6)		(4.7)		(3.9)
Impact of foreign operations	0.3		1.3		(1.0)
Changes in uncertain tax positions	1.5		(2.0)		(0.8)
Incremental tax benefit from share-based compensation awards	(0.4)		(1.6)		(0.7)
Energy efficiency incentives	(0.7)		(3.8)		—
Impact from goodwill impairment	—		81.7		—
Transition tax on foreign earnings	—		—		(1.1)
Remeasurement of U.S. deferred taxes	—		—		(0.3)
Nondeductible expenses	2.9		4.4		2.1
Other, net	1.0		3.9		(0.8)
Effective tax rate	29.8	%	99.6	%	20.4	%

Schedule of Components of Deferred Tax Assets and Liabilities

Components of Deferred Tax Assets and Liabilities

	As of October 31,
(in millions)	2021		2020
Deferred tax assets attributable to:
Self-insurance claims (net of recoverables)	$	92.0	$	74.7
Deferred and other compensation	34.4		28.6
Accounts receivable allowances	8.2		8.8
Settlement liabilities	44.2		5.0
Other accruals	6.6		1.5
Other comprehensive income	1.3		2.7
State taxes	0.7		1.4
State net operating loss carryforwards	4.0		5.9
Tax credits	2.9		3.7
Unrecognized tax benefits	3.3		3.2
Deferred payroll taxes	35.1		26.9
Operating lease liabilities	33.5		38.2
Gross deferred tax assets	266.2		200.6
Valuation allowance	(2.2)		(4.1)
Total deferred tax assets	264.0		196.5
Deferred tax liabilities attributable to:
Property, plant and equipment	(4.1)		(1.2)
Goodwill and other acquired intangibles	(222.2)		(159.4)
Right-of-use assets	(33.8)		(38.2)
Tax accounting method change	(15.8)		—
Other	(10.6)		(8.5)
Total deferred tax liabilities	(286.5)		(207.3)
Net deferred tax liabilities	$	(22.5)	$	(10.8)

Schedule of Changes to the Deferred Tax Asset Valuation Allowance

Changes to the Valuation Allowance

	Years Ended October 31,
(in millions)	2021		2020		2019
Valuation allowance at beginning of year	$	4.1	$	8.4	$	12.0
Other, net	(1.9)		(4.3)		(3.6)
Valuation allowance at end of year	$	2.2	$	4.1	$	8.4

Reconciliation of Total Unrecognized Tax Benefits

Reconciliation of Total Unrecognized Tax Benefits

	Years Ended October 31,
(in millions)	2021		2020		2019
Balance at beginning of year	$	35.5	$	35.3	$	35.8
Additions for tax positions related to the current year	3.7		2.1		—
Additions for tax positions related to prior years	0.3		1.6		3.6
Reductions for tax positions related to prior years	(5.3)		—		—
Reductions for lapse of statute of limitations	(2.5)		(3.0)		(3.9)
Settlements	(1.3)		(0.5)		(0.3)
Balance at end of year	$	30.4	$	35.5	$	35.3