Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Oct. 31, 2015	Oct. 31, 2014
Deferred tax assets:
Self-insurance claims (net of recoverables)	$ 109.5	$ 113.0
Deferred and other compensation	35.5	35.6
Accounts receivable allowances	2.9	3.7
Settlement liabilities	3.5	2.0
Other accruals	2.6	3.6
Other comprehensive income	1.3	1.2
State taxes	0.5	0.8
State net operating loss carryforwards	5.9	7.1
Tax credits	7.4	5.1
Other	0.4	0.9
Deferred Tax Assets, Gross, Total	169.5	173.0
Valuation allowance	(5.5)	(6.2)
Total deferred tax assets	164.0	166.8
Deferred tax liabilities:
Property, plant and equipment	(0.4)	(1.1)
Goodwill and other acquired intangibles	(129.5)	(135.5)
Total deferred tax liabilities	(129.9)	(136.6)
Net deferred tax assets	$ 34.1	$ 30.2