Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2013
Commitments And Contingencies Disclosure Details [Abstract]
Private equity partnership commitments	$ 15.0
Total private equity invested capital	13.9
Total remaining commitment expected to be invested	$ 1.1
The date the remaining commitment is expected to be invested by	Mar-15