Restricted Cash	6 Months Ended
Apr. 30, 2019
Restricted Cash And Investments [Abstract]
Restricted Cash	Note 14. Restricted Cash As of April 30, 2019 and October 31, 2018, there was $38.1 million and $40.9 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 was placed in a Grantor’s Trust account to secure certain obligations under a 15-year service agreement and has been classified as long-term (refer to Note 18, “Subsequent Events” for further information). The restricted cash balance as of April 30, 2019 and October 31, 2018 also includes $17.6 million and $17.7 million, respectively, to support obligations related to PNC sale-leaseback transactions. As of April 30, 2019 and October 31, 2018, outstanding letters of credit totaled $3.5 million and $3.8 million, respectively. These expire on various dates through August 2028.

Restricted Cash

6 Months Ended

Apr. 30, 2019

Restricted Cash And Investments [Abstract]

Note 14. Restricted Cash

As of April 30, 2019 and October 31, 2018, there was $38.1 million and $40.9 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 was placed in a Grantor’s Trust account to secure certain obligations under a 15-year service agreement and has been classified as long-term (refer to Note 18, “Subsequent Events” for further information). The restricted cash balance as of April 30, 2019 and October 31, 2018 also includes $17.6 million and $17.7 million, respectively, to support obligations related to PNC sale-leaseback transactions. As of April 30, 2019 and October 31, 2018, outstanding letters of credit totaled $3.5 million and $3.8 million, respectively. These expire on various dates through August 2028.