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Line of Credit - Facility Information (Details) - USD ($)
$ in Millions
Apr. 30, 2016
Oct. 31, 2015
Debt Disclosure [Abstract]    
Cash borrowings $ 208.9 $ 158.0
Standby letters of credit 127.6 112.9
Borrowing capacity [1] $ 463.5 $ 529.1
[1] Availability of our borrowing capacity is subject to, and limited by, compliance with the covenants described above.