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Operating Segments - Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Net external sales | $ 553,706 |  | $ 496,137 |  | $ 1,104,130 |  | $ 903,607 |
Operating profit (loss) | 126,705 |  | 103,531 |  | 244,428 |  | 179,449 |
Operating Segments [Member] | Adhesive Dispensing Systems [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Net external sales | 238,775 |  | 226,943 |  | 459,639 |  | 434,780 |
Operating profit (loss) | 69,514 | [1] | 65,719 | [2] | 122,829 | [1] | 118,775 | [2]
Operating Segments [Member] | Advanced Technology Systems [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Net external sales | 250,839 |  | 210,142 |  | 522,540 |  | 355,502 |
Operating profit (loss) | 58,306 |  | 54,306 |  | 125,574 |  | 80,669 |
Operating Segments [Member] | Industrial Coating Systems [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Net external sales | 64,092 |  | 59,052 |  | 121,951 |  | 113,325 |
Operating profit (loss) | 11,572 |  | 10,252 |  | 21,732 |  | 17,337 |
Corporate [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Operating profit (loss) | $ (12,687) |  | $ (26,746) |  | $ (25,707) |  | $ (37,332) |
[1] | Includes $1,082 and $2,149 of severance and restructuring costs in the three and six months ended April 30, 2018, respectively.
[2] | Includes $491 and $718 of severance and restructuring costs in the three and six months ended April 30, 2017, respectively.

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