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Operating Segments and Geographic Area Data - Reportable Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2017 | Jul. 31, 2017 | Apr. 30, 2017 | Jan. 31, 2017 | Oct. 31, 2016 | Jul. 31, 2016 | Apr. 30, 2016 | Jan. 31, 2016 | Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  | $ 573,938 | $ 589,438 | $ 496,137 | $ 407,470 | $ 509,283 | $ 489,899 | $ 437,592 | $ 372,220 | $ 2,066,982 |  | $ 1,808,994 |  | $ 1,688,666
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 457,702 |  | 388,431 |  | 317,730
Identifiable assets |  | 3,414,539 |  |  |  | 2,420,583 |  |  |  | 3,414,539 |  | 2,420,583 |  | 2,358,314
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 71,558 |  | 60,851 |  | 62,087
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 2,066,982 |  | 1,808,994 |  | 1,688,666
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 90,854 |  | 70,304 |  | 65,194
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 457,702 |  | 388,431 |  | 317,730
Identifiable assets | [1] | 3,424,941 |  |  |  | 2,435,675 |  |  |  | 3,424,941 |  | 2,435,675 |  | 2,370,509
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 71,558 |  | 60,851 |  | 62,087
Operating Segments [Member] | Adhesive Dispensing Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 916,019 |  | 879,573 |  | 836,066
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 29,118 |  | 28,294 |  | 28,097
Operating profit (loss) | [2] |  |  |  |  |  |  |  |  | 253,580 |  | 229,143 |  | 195,902
Identifiable assets | [1] | 794,699 |  |  |  | 751,153 |  |  |  | 794,699 |  | 751,153 |  | 734,145
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 35,310 |  | 17,407 |  | 12,880
Operating Segments [Member] | Advanced Technology Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 897,623 |  | 676,329 |  | 593,858
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 49,535 |  | 29,649 |  | 25,430
Operating profit (loss) | [3] |  |  |  |  |  |  |  |  | 228,062 |  | 159,531 |  | 120,940
Identifiable assets | [1] | 1,718,844 |  |  |  | 1,080,711 |  |  |  | 1,718,844 |  | 1,080,711 |  | 1,021,221
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 21,135 |  | 18,967 |  | 36,182
Operating Segments [Member] | Industrial Coating Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net external sales |  |  |  |  |  |  |  |  |  | 253,340 |  | 253,092 |  | 258,742
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 5,559 |  | 5,041 |  | 4,973
Operating profit (loss) |  |  |  |  |  |  |  |  |  | 43,991 | [4] | 43,511 | [4] | 41,458
Identifiable assets | [1] | 120,458 |  |  |  | 140,169 |  |  |  | 120,458 |  | 140,169 |  | 130,421
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | 9,108 |  | 17,357 |  | 5,112
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 6,642 |  | 7,320 |  | 6,694
Operating profit (loss) |  |  |  |  |  |  |  |  |  | (67,931) |  | (43,754) |  | (40,570)
Identifiable assets | [1],[5] | $ 790,940 |  |  |  | $ 463,642 |  |  |  | 790,940 |  | 463,642 |  | 484,722
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  | $ 6,005 |  | $ 7,120 |  | $ 7,913
[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] | Includes $2,618, $7,800 and $7,972 of severance and restructuring costs in 2017, 2016 and 2015, respectively.
[3] | Includes $(180), $1,054 and $3,060 of severance and restructuring costs in 2017, 2016 and 2015, respectively.
[4] | Includes $1,921 and $379 of severance and restructuring costs in 2016 and 2015, respectively.
[5] | 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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