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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Sep. 30, 2025
Revenue from Contracts with Customers [Abstract] |
Capitalized Contract Cost | The table below shows significant movements in capitalized contract acquisition costs (current and noncurrent) for the years ended September 30, 2025, 2024, and 2023 (in thousands):
| 2025 |  | 2024 |  | 2023
Balance, beginning of year | $ | 66,258 |  |  | $ | 66,468 |  |  | $ | 77,220 |
Additional capitalized contract acquisition costs | 48,532 |  |  | 35,173 |  |  | 26,960 |
Amortization of capitalized contract acquisition costs | (38,238) |  |  | (35,383) |  |  | (37,712) |
Balance, end of year | $ | 76,552 |  |  | $ | 66,258 |  |  | $ | 66,468 |
Contract with Customer, Asset and Liability | The table below shows significant movements in the deferred revenue balances (current and noncurrent) for the years ended September 30, 2025, 2024, and 2023 (in thousands):
| 2025 |  | 2024 |  | 2023
Balance, beginning of year | $ | 1,797,959 |  |  | $ | 1,775,121 |  |  | $ | 1,691,580 |
Amounts added but not recognized as revenues | 1,344,094 |  |  | 1,179,350 |  |  | 1,162,698 |
Deferred revenue acquired through acquisition of businesses | 789 |  |  | — |  |  | 1,800 |
Revenues recognized related to the opening balance of deferred revenue | (1,143,605) |  |  | (1,156,512) |  |  | (1,080,957) |
Balance, end of year | $ | 1,999,237 |  |  | $ | 1,797,959 |  |  | $ | 1,775,121 |

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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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