Restricted Cash	6 Months Ended
Apr. 30, 2018
Restricted Cash And Investments [Abstract]
Restricted Cash	Note 13. Restricted Cash As of April 30, 2018 and October 31, 2017, there was $38.2 million 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 April 30, 2018 and October 31, 2017 also includes $17.2 million and $17.0 million, respectively, to support obligations related to PNC sale-leaseback transactions. As of April 30, 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.

Restricted Cash

6 Months Ended

Apr. 30, 2018

Restricted Cash And Investments [Abstract]

Note 13. Restricted Cash

As of April 30, 2018 and October 31, 2017, there was $38.2 million 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 April 30, 2018 and October 31, 2017 also includes $17.2 million and $17.0 million, respectively, to support obligations related to PNC sale-leaseback transactions. As of April 30, 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.