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Schedule of Accrued Liabilities (Parenthetical) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2017 | Oct. 31, 2016
Schedule Of Accrued Liabilities [Line Items] |  |
Product warranty accrual, warranties issued | $ 0.6 | $ 0.3
Product warranty accrual, payment and adjustments | 0.8 | 0.7
Loss reserve on service agreements | 1.1 | 2.7
Increase in reserve for service agreement costs | 1.6 |
Reserve for performance guarantees | 2.2 | $ 3.3
POSCO Energy [Member] |  |
Schedule Of Accrued Liabilities [Line Items] |  |
Other customer contractual milestone liabilities for inventory | 4.4 |
Additional billed and collected contractual milestone liabilities for inventory | $ 10.4 |

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- Definition Increase in reserve for service agreement costs. + References No definition available. + Details
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- Definition Other accrued contractual milestone liabilities for inventory. + References No definition available. + Details
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- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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- Definition Amount of increase in the standard and extended product warranty accrual from warranties issued. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3)) -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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- Details
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