Fair Value of Financial Instruments - Schedule of Fair Value of Financial Instruments (Detail) $ in Millions		Mar. 03, 2016 USD ($)	Jan. 31, 2016 USD ($) institution	Oct. 31, 2015 USD ($) institution
Financial Instruments
Assets, Fair Value Disclosure			$ 84.9	$ 85.2
Total financial assets			67.3	66.9
Total fair value of financial liabilities			$ 291.9	$ 163.3
Number of financial institution | institution			3	3
Fair Value, Inputs, Level 1
Financial Instruments
Cash and cash equivalents	[1]		$ 55.9	$ 55.5
Fair Value, Inputs, Level 2
Financial Instruments
Line of credit	[2]		286.7	158.0
Fair Value, Measurements, Recurring
Financial Instruments
Fair value of recurring assets			17.6	18.3
Fair value of recurring liabilities			5.2	5.3
Auction Rate Securities
Financial Instruments
Investments in auction rate securities			13.0	13.0
Debt securities			15.0	15.0
Subsequent Event
Financial Instruments
Auction rate securities		$ 5.0
Other Noncurrent Assets | Fair Value, Inputs, Level 1
Financial Instruments
Insurance deposits	[3]		11.4	11.4
Other Noncurrent Assets | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Financial Instruments
Assets held in funded deferred compensation plan	[4]		4.6	5.3
Other Investments | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Financial Instruments
Investments in auction rate securities	[5]		13.0	13.0
Other Accrued Liabilities | Fair Value, Inputs, Level 2
Financial Instruments
Interest rate swaps	[6]		0.0	0.1
Other Noncurrent Liabilities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Financial Instruments
Contingent consideration liability	[7]		$ 5.2	$ 5.2

[1] Cash and cash equivalents are stated at nominal value, which equals fair value.

[2] Represents outstanding borrowings under our syndicated line of credit. Due to variable interest rates, the carrying value of outstanding borrowings under our line of credit approximates the fair value. See Note 11, “Line of Credit,” for further information.

[3] Represents restricted insurance deposits that are used to collateralize our insurance obligations and are stated at nominal value, which equals fair value. These insurance deposits are included in “Other noncurrent assets” on the accompanying unaudited consolidated balance sheets. See Note 10, “Insurance,” for further information.

[4] Represents investments held in a Rabbi trust associated with one of our deferred compensation plans, which we include in “Other noncurrent assets” on the accompanying unaudited consolidated balance sheets. The fair value of the assets held in the funded deferred compensation plan is based on quoted market prices.

[5] At January 31, 2016, we held investments in auction rate securities from three different issuers having an aggregate original principal amount of $15.0 million. For investments in auction rate securities that were not redeemed or had no market activity indicative of value, the fair value was based on discounted cash flow valuation models, primarily utilizing unobservable inputs. These amounts are included in “Other investments” on the accompanying unaudited consolidated balance sheets. On March 3, 2016, one of our auction rate securities was redeemed by the issuer at its par value of $5.0 million. For that security, the fair value as of January 31, 2016 was determined to be the same as its par value. This amount is included in “Other current assets” as of January 31, 2016 and “Other investments” as of October 31, 2015 on the accompanying unaudited consolidated balance sheets. See Note 9, “Auction Rate Securities,” for further information.

[6] Represents interest rate swap derivatives designated as cash flow hedges. The fair values of the interest rate swaps are estimated based on the present value of the difference between expected cash flows calculated at the contracted interest rates and the expected cash flows at current market interest rates using observable benchmarks for LIBOR forward rates at the end of the period. The fair values of the interest rate swap liabilities are included in “Other accrued liabilities” on the accompanying unaudited consolidated balance sheets. See Note 11, “Line of Credit,” for more information.

[7] Certain of our acquisitions involve the payment of contingent consideration. Depending on the structure of the contingent consideration arrangement, the fair value of the liability is based on either (i) the expected achievement of certain pre-established revenue goals or (ii) pre-defined forecasted adjusted income from operations using a probability weighted income approach. Our contingent consideration liabilities are included in “Other accrued liabilities” and “Other noncurrent liabilities” on the accompanying unaudited consolidated balance sheets.