Insurance - Standby Letters of Credit, Surety Bonds and Restricted Insurance Deposits Outstanding to Collateralize Self-Insurance Obligations (Detail) - USD ($) $ in Millions	May. 01, 2016	Apr. 30, 2016	[1]	Oct. 31, 2015
Letters Of Credit
Total Instruments Used To Collateralize Insurance Obligations		$ 187.4		$ 172.7
Standby Letters of Credit
Letters Of Credit
Instruments Used To Collateralize Insurance Obligations		120.1		105.4
Surety Bond
Letters Of Credit
Instruments Used To Collateralize Insurance Obligations	$ 2.9	55.9		55.9
Rejected insurance deposits
Letters Of Credit
Instruments Used To Collateralize Insurance Obligations		$ 11.4		$ 11.4

[1] (in millions)April 30, 2016 October 31, 2015Standby letters of credit $120.1 $105.4Surety bonds55.9 55.9Restricted insurance deposits11.4 11.4Total$187.4 $172.7