Commitments and contingencies (Tables)

12 Months Ended

Oct. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of minimum rental income to be received from non-cancelable operating leases

Minimum rental income (in thousands of dollars) to be received from non-cancelable operating leases in years subsequent to October 31, 2017 is as follows:

Year Ending October 31,	Amount
2018	$	18,520
2019		17,649
2020		16,659
2021		14,775
2022		11,445
Thereafter		54,869
Total	$	133,917