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Commitments and Contingencies - Additional Information (Details) | 12 Months Ended
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Oct. 31, 2018 USD ($) Employee | Oct. 31, 2017 USD ($) | Oct. 31, 2016 USD ($)
Commitments And Contingencies [Line Items] |  |  |
Capitalized lease obligations | $ 341,000 | $ 632,000 |
Lease Payment Terms | 36 months |  |
Operating Leases, Rent Expense, Net | $ 1,200,000 | 1,600,000 | $ 1,800,000
Reserve for performance guarantees | 1,100,000 | 2,200,000 |
Loss reserve on service agreements | 900,000 | $ 1,100,000 |
Recorded Unconditional Purchase Obligation | $ 64,000,000 |  |
State of Connecticut [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of targeted connecticut employees | Employee | 703 |  |
Number of employees committed to hire | Employee | 100 |  |
Number of connecticut Employees | Employee | 452 |  |
Promossiory note payable for each employee under 703 employee target | $ 14,000 |  |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 + Details
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- Details
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