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Operating Segments and Geographic Area Data - Reportable Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2019 | Jul. 31, 2019 | Apr. 30, 2019 | Jan. 31, 2019 | Oct. 31, 2018 | Jul. 31, 2018 | Apr. 30, 2018 | Jan. 31, 2018 | Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  | $ 585,451 | $ 559,746 | $ 551,119 | $ 497,910 | $ 569,295 | $ 581,243 | $ 553,706 | $ 550,424 | $ 2,194,226 | $ 2,254,668 | $ 2,066,982
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 483,113 | 502,579 | 466,402
Identifiable assets |  | 3,516,447 |  |  |  | 3,421,012 |  |  |  | 3,516,447 | 3,421,012 | 3,414,539
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 64,244 | 89,790 | 71,558
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 2,194,226 | 2,254,668 | 2,066,982
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 110,244 | 108,407 | 90,854
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 483,113 | 502,579 | 466,402
Identifiable assets | [1] | 3,519,907 |  |  |  | 3,428,922 |  |  |  | 3,519,907 | 3,428,922 | 3,424,941
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 64,244 | 89,790 | 71,558
Operating Segments [Member] | Adhesive Dispensing Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 950,917 | 955,192 | 916,019
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 32,401 | 31,597 | 29,118
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 275,216 | 262,627 | 256,812
Identifiable assets | [1] | 839,997 |  |  |  | 829,696 |  |  |  | 839,997 | 829,696 | 794,699
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 26,005 | 46,911 | 35,310
Operating Segments [Member] | Advanced Technology Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 985,850 | 1,039,366 | 897,623
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 62,836 | 62,594 | 49,535
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 205,609 | 244,880 | 229,611
Identifiable assets | [1] | 1,740,259 |  |  |  | 1,713,404 |  |  |  | 1,740,259 | 1,713,404 | 1,718,844
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 26,010 | 16,205 | 21,135
Operating Segments [Member] | Industrial Coating Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 257,459 | 260,110 | 253,340
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 5,932 | 6,166 | 5,559
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 53,838 | 52,421 | 45,528
Identifiable assets | [1] | 157,463 |  |  |  | 122,088 |  |  |  | 157,463 | 122,088 | 120,458
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 4,395 | 8,546 | 9,108
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 9,075 | 8,050 | 6,642
Operating profit (loss) |  |  |  |  |  |  |  |  |  | (51,550) | (57,349) | (65,549)
Identifiable assets | [1],[2] | $ 782,188 |  |  |  | $ 763,734 |  |  |  | 782,188 | 763,734 | 790,940
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | $ 7,834 | $ 18,128 | $ 6,005
[1] | Operating segment identifiable assets include notes and accounts receivable net of customer advance payments and allowance for doubtful accounts, inventories net of reserves, property, plant and equipment net of accumulated depreciation and goodwill.
[2] | Corporate assets are principally cash and cash equivalents, deferred income taxes, capital leases, headquarter facilities, the major portion of our enterprise management system, and intangible assets.

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