Stock Repurchase Program (Details) (USD $)	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Mar. 31, 2003
Share Repurchase Program
Number of shares purchased	3,000	3,000
Average price per share	$ 32.59	$ 20.61
Remaining authorization at January 31:	8,764,000	8,783,000	20,000,000
Stock Repurchase Program (Textual) [Abstract]
Authorization to repurchase shares	8,764,000	8,783,000	20,000,000
Par value of common stock repurchased			$ 0.01