Restricted Cash	9 Months Ended
Jul. 31, 2018
Restricted Cash And Investments [Abstract]
Restricted Cash	Note 14. Restricted Cash As of July 31, 2018 and October 31, 2017, there was $38.6 million and $38.2 million, respectively, of restricted cash and cash equivalents pledged as collateral for letters of credit for certain banking requirements and contractual commitments. The restricted cash balance for both periods presented includes $15.0 million which has been placed in a Grantor’s Trust account to secure certain obligations under a 15-year service agreement and has been classified as long-term. The restricted cash balance as of July 31, 2018 and October 31, 2017 also includes $17.5 million and $17.0 million, respectively, to support obligations related to PNC sale-leaseback transactions. As of July 31, 2018 and October 31, 2017, outstanding letters of credit totaled $2.3 million and $2.9 million, respectively. These expire on various dates through April 2019.

Note 14. Restricted Cash

As of July 31, 2018 and October 31, 2017, there was $38.6 million and $38.2 million, respectively, of restricted cash and cash equivalents pledged as collateral for letters of credit for certain banking requirements and contractual commitments. The restricted cash balance for both periods presented includes $15.0 million which has been placed in a Grantor’s Trust account to secure certain obligations under a 15-year service agreement and has been classified as long-term. The restricted cash balance as of July 31, 2018 and October 31, 2017 also includes $17.5 million and $17.0 million, respectively, to support obligations related to PNC sale-leaseback transactions. As of July 31, 2018 and October 31, 2017, outstanding letters of credit totaled $2.3 million and $2.9 million, respectively. These expire on various dates through April 2019.