Restricted Cash	9 Months Ended
Jul. 31, 2019
Restricted Cash And Investments [Abstract]
Restricted Cash	Note 16. Restricted Cash As of July 31, 2019 and October 31, 2018, there was $29.8 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 as of October 31, 2018 included $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. In connection with the acquisition of the Bridgeport Fuel Cell Project, $15.0 million of restricted cash was released on May 9, 2019. The restricted cash balance as of July 31, 2019 and October 31, 2018 also includes $17.8 million and $17.7 million, respectively, to support obligations related to the PNC sale-leaseback transactions. As of July 31, 2019, an additional amount of $6.9 million was classified as restricted cash to support future obligations under the loan agreements with Fifth Third and Liberty Bank. As of July 31, 2019 and October 31, 2018, outstanding letters of credit totaled $5.2 million and $3.8 million, respectively. These expire on various dates through August 2028.

Restricted Cash

9 Months Ended

Jul. 31, 2019

Restricted Cash And Investments [Abstract]

Note 16. Restricted Cash

As of July 31, 2019 and October 31, 2018, there was $29.8 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 as of October 31, 2018 included $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. In connection with the acquisition of the Bridgeport Fuel Cell Project, $15.0 million of restricted cash was released on May 9, 2019. The restricted cash balance as of July 31, 2019 and October 31, 2018 also includes $17.8 million and $17.7 million, respectively, to support obligations related to the PNC sale-leaseback transactions. As of July 31, 2019, an additional amount of $6.9 million was classified as restricted cash to support future obligations under the loan agreements with Fifth Third and Liberty Bank. As of July 31, 2019 and October 31, 2018, outstanding letters of credit totaled $5.2 million and $3.8 million, respectively. These expire on various dates through August 2028.