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Line of Credit - Facility Information (Details) - USD ($)
$ in Millions
Apr. 30, 2017
Oct. 31, 2016
Debt Disclosure [Abstract]    
Cash borrowings $ 277.9 $ 268.3
Standby letters of credit 128.9 130.9
Borrowing capacity 393.2 [1] $ 400.8
Borrowing capacity after covenant restrictions $ 262.1  
[1] At April 30, 2017, current covenant restrictions limit our borrowing capacity to $262.1 million. However, the leverage ratio could increase for up to four fiscal quarters if we complete a material acquisition, as defined in the Credit Agreement.