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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2020 | Apr. 30, 2019
Statement of Other Comprehensive Income [Abstract] |  |  |  |
Minimum pension liability adjustment, tax | $ 50 | $ 28 | $ 27 | $ 55

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