Note 4 - Debt (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended							3 Months Ended			9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012 Total Leverage Ratio [Member] Required Debt Covenant [Member]	Jul. 31, 2012 Total Leverage Ratio [Member] Actual Ratio [Member]	Jul. 31, 2012 Senior Leverage Ratio [Member] Before October 31, 2013 [Member] Required Debt Covenant [Member]	Jul. 31, 2012 Senior Leverage Ratio [Member] After October 31, 2013 [Member] Required Debt Covenant [Member]	Jul. 31, 2012 Senior Leverage Ratio [Member] Actual Ratio [Member]	Jul. 31, 2012 Interest Expense Coverage Ratio [Member] Required Debt Covenant [Member]	Jul. 31, 2012 Interest Expense Coverage Ratio [Member] Actual Ratio [Member]	Jul. 31, 2012 Federal Funds Rate [Member]	Jul. 31, 2012 Prime Commercial Lending Rate [Member]	Jul. 31, 2012 LIBOR Rate [Member]	Jul. 31, 2011 Swing Line Loans [Member]	Jul. 31, 2012 Sub Facility For Letters of Credit [Member]	Jul. 31, 2012 Sub-Facility for Multicurrency Borrowing [Member]	Jul. 31, 2012 Swing Line Loans [Member]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$ 200.0													$ 25.0	$ 25.0	$ 20.0
Debt Instrument Term	5
Option To Increase Revolver (in Dollars)	300.0
Line of Credit Facility, Interest Rate Description										the Federal Funds Rate plus .50%	the prime commercial lending rate of the Administrative Agent, as defined	the one month LIBOR rate for such day plus 2.00%	Swing Line Loans bear interest at the Base Rate plus the applicable margin
Line of Credit Facility, Interest Rate at Period End		2.00%
Line of Credit Facility, Amount Outstanding (in Dollars)		14.4
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)		$ 185.6
Debt Instrument, Maturity Date Range, End	Oct. 29, 2015
Debt Instrument, Covenant Description			3.75 to 1.0	0.19 to 1.0	3.0 to 1.0	2.75 to 1.00	0.17 to 1.0	3.0 to 1.0	63.36 to 1.0