XML 32 R28.htm IDEA: XBRL DOCUMENT v2.4.0.6
Basis of Presentation - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2013
Apr. 30, 2012
Basis of Presentation [Line Items]        
Changes in reportable segments     As a result, we have separated our previous Facility Solutions reportable segment into two new reportable segments, Facility Services and Building & Energy Solutions.  
Parking
       
Basis of Presentation [Line Items]        
Revenues related solely to the reimbursement of expenses $ 76.2 $ 76.3 $ 152.1 $ 154.1