Unconsolidated Affiliated Company (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Unconsolidated Affiliated Company
Ownership percentage in equity method investee	50.00%								50.00%
Operations:
Total revenue									$ 11.9	$ 11.2	$ 9.9
Net income (loss)									2.2	2.8	2.3
The Company's equity in net income (loss)	0.1	0.2	0.5	0.3	0.5	0.1	0.3	0.5	1.1	1.4	1.2
Financial Position:
Total assets	189.2				137.2				189.2	137.2
Total external borrowings	165.7				110.7				165.7	110.7
Total net assets	20.5				17.4				20.5	17.4
The Company's share of net assets	$ 10.2				$ 8.7				$ 10.2	$ 8.7