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Operating Segments and Geographic Area Data - Reportable Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2018 | Jul. 31, 2018 | Apr. 30, 2018 | Jan. 31, 2018 | Oct. 31, 2017 | Jul. 31, 2017 | Apr. 30, 2017 | Jan. 31, 2017 | Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  | $ 569,295 | $ 581,243 | $ 553,706 | $ 550,424 | $ 573,938 | $ 589,438 | $ 496,137 | $ 407,470 | $ 2,254,668 | $ 2,066,982 | $ 1,808,994
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 494,557 | 457,702 | 388,431
Identifiable assets |  | 3,421,012 |  |  |  | 3,414,539 |  |  |  | 3,421,012 | 3,414,539 | 2,420,583
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 89,790 | 71,558 | 60,851
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 2,254,668 | 2,066,982 | 1,808,994
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 108,407 | 90,854 | 70,304
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 494,557 | 457,702 | 388,431
Identifiable assets | [1] | 3,428,922 |  |  |  | 3,424,941 |  |  |  | 3,428,922 | 3,424,941 | 2,435,675
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 89,790 | 71,558 | 60,851
Operating Segments [Member] | Adhesive Dispensing Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 955,192 | 916,019 | 879,573
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 31,597 | 29,118 | 28,294
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 259,493 | 253,580 | 229,143
Identifiable assets | [1] | 829,696 |  |  |  | 794,699 |  |  |  | 829,696 | 794,699 | 751,153
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 46,911 | 35,310 | 17,407
Operating Segments [Member] | Advanced Technology Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 1,039,366 | 897,623 | 676,329
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 62,594 | 49,535 | 29,649
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 243,523 | 228,062 | 159,531
Identifiable assets | [1] | 1,713,404 |  |  |  | 1,718,844 |  |  |  | 1,713,404 | 1,718,844 | 1,080,711
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 16,205 | 21,135 | 18,967
Operating Segments [Member] | Industrial Coating Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 260,110 | 253,340 | 253,092
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 6,166 | 5,559 | 5,041
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 50,638 | 43,991 | 43,511
Identifiable assets | [1] | 122,088 |  |  |  | 120,458 |  |  |  | 122,088 | 120,458 | 140,169
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 8,546 | 9,108 | 17,357
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 8,050 | 6,642 | 7,320
Operating profit (loss) |  |  |  |  |  |  |  |  |  | (59,097) | (67,931) | (43,754)
Identifiable assets | [1],[2] | $ 763,734 |  |  |  | $ 790,940 |  |  |  | 763,734 | 790,940 | 463,642
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | $ 18,128 | $ 6,005 | $ 7,120
[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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