Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Apr. 30, 2017
Summary Of Significant Accounting Policies Disclosure Table [Abstract]  
Change in amounts previously reported as a result of an adoption of a new accounting pronouncement
 October 31, 2016      
 (in thousands)As Previously ReportedReclassificationAs Restated
 Other assets$ 87,759$ (2,194)$ 85,565
 Total assets  1,732,576  (2,194)  1,730,382
 Debt  573,967  (2,194)  571,773
 Total liabilities  918,973  (2,194)  916,779
 Total permanent equity  704,575  -  704,575
 Total liabilities, temporary equity and permanent equity  1,732,576  (2,194)  1,730,382