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Goodwill and Intangible Assets | 9 Months Ended
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Jun. 30, 2026
Intangible Asset, Goodwill and Other [Abstract] |
Goodwill and Intangible Assets | 6. Goodwill and Intangible Assets During the third quarter of 2026, we completed our annual impairment test of goodwill, which was based on a qualitative assessment, and concluded that there was no impairment. A qualitative assessment is designed to determine whether we believe it is more likely than not that the fair values of our reporting units exceed their carrying values. A qualitative assessment includes a review of qualitative factors, including company-specific (financial performance and long-range plans), industry, and macroeconomic factors, and a consideration of the fair value of each reporting unit at the last valuation date. Goodwill and acquired intangible assets consisted of the following:
(in thousands) |  | June 30, 2026 |  |  | September 30, 2025 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Book Value |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Book Value |
Goodwill |  |  |  |  |  |  |  | $ | 3,398,303 |  |  |  |  |  |  |  |  | $ | 3,493,316 |
Intangible assets with finite lives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased software |  | $ | 547,640 |  |  | $ | 401,974 |  |  | $ | 145,666 |  |  | $ | 639,104 |  |  | $ | 472,357 |  |  | $ | 166,747 |
Capitalized software |  |  | 22,877 |  |  |  | 22,877 |  |  |  | — |  |  |  | 22,877 |  |  |  | 22,877 |  |  |  | — |
Customer lists and relationships |  |  | 1,088,385 |  |  |  | 480,308 |  |  |  | 608,077 |  |  |  | 1,149,262 |  |  |  | 505,202 |  |  |  | 644,060 |
Trademarks and trade names |  |  | 31,822 |  |  |  | 19,766 |  |  |  | 12,056 |  |  |  | 38,179 |  |  |  | 24,323 |  |  |  | 13,856 |
Other |  |  | 3,469 |  |  |  | 3,469 |  |  |  | — |  |  |  | 4,019 |  |  |  | 4,019 |  |  |  | — |
Total intangible assets with finite lives |  | $ | 1,694,193 |  |  | $ | 928,394 |  |  | $ | 765,799 |  |  | $ | 1,853,441 |  |  | $ | 1,028,778 |  |  | $ | 824,663 |
Total goodwill and acquired intangible assets |  |  |  |  |  |  |  | $ | 4,164,102 |  |  |  |  |  |  |  |  | $ | 4,317,979 |
Changes in Goodwill were as follows:
(in thousands) |  |  |
Balance, October 1, 2025 |  | $ | 3,493,316 |
Acquisitions |  |  | 1,782 |
Divestiture of businesses |  |  | (82,204 | )
Foreign currency translation adjustment |  |  | (14,591 | )
Balance, June 30, 2026 |  | $ | 3,398,303 |
The aggregate amortization expense for intangible assets with finite lives is classified in our Consolidated Statements of Operations as follows:
(in thousands) |  | Three months ended |  |  | Nine months ended |
|  | June 30, 2026 |  |  | June 30, 2025 |  |  | June 30, 2026 |  |  | June 30, 2025 |
Amortization of acquired intangible assets |  | $ | 11,991 |  |  | $ | 11,536 |  |  | $ | 36,075 |  |  | $ | 34,356 |
Cost of revenue |  |  | 7,753 |  |  |  | 8,178 |  |  |  | 23,421 |  |  |  | 24,609 |
Total amortization expense |  | $ | 19,744 |  |  | $ | 19,714 |  |  | $ | 59,496 |  |  | $ | 58,965 |

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- Definition The entire disclosure for intangible asset and goodwill. Includes, but is not limited to, finite- and indefinite-lived intangible assets, capitalized cost for internal-use software and software to be sold, leased, or marketed. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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