| Goodwill [Table Text Block] |
Changes in the carrying amount of goodwill by operating segment for the nine months ended July 31, 2026 are as follows (in thousands): | | | | | | | | | | | | | | | | | | | Segment | | Consolidated Totals | | FSG | | ETG | | | Balances as of October 31, 2025 | $1,997,178 | | | $1,664,446 | | | $3,661,624 | | | Goodwill acquired | 393,225 | | | 312,028 | | | 705,253 | | | Adjustments to goodwill | 200 | | | (6,546) | | | (6,346) | | | Foreign currency translation adjustments | (315) | | | (4,073) | | | (4,388) | | | Balances as of July 31, 2026 | $2,390,288 | | | $1,965,855 | | | $4,356,143 | |
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| Schedule Of Identifiable Intangible Assets [Table Text Block] |
Identifiable intangible assets consist of the following (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of July 31, 2026 | | As of October 31, 2025 | | | Gross Carrying Amount | | Accumulated Amortization | | Net Carrying Amount | | Gross Carrying Amount | | Accumulated Amortization | | Net Carrying Amount | | Amortizing Assets: | | | | | | | | | | | | | | Customer relationships | | $1,356,362 | | | ($450,710) | | | $905,652 | | | $1,131,443 | | | ($373,100) | | | $758,343 | | | Intellectual property | | 695,564 | | | (188,422) | | | 507,142 | | | 540,836 | | | (153,783) | | | 387,053 | | | Other | | 5,265 | | | (4,858) | | | 407 | | | 8,651 | | | (8,127) | | | 524 | | | | 2,057,191 | | | (643,990) | | | 1,413,201 | | | 1,680,930 | | | (535,010) | | | 1,145,920 | | | Non-Amortizing Assets: | | | | | | | | | | | | | | Trade names | | 363,741 | | | — | | | 363,741 | | | 325,520 | | | — | | | 325,520 | | | | $2,420,932 | | | ($643,990) | | | $1,776,942 | | | $2,006,450 | | | ($535,010) | | | $1,471,440 | |
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