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v3.23.1

Revenue Recognition (Tables) | 6 Months Ended
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Mar. 31, 2023
Revenue from Contract with Customer [Abstract] |
Summary of Revenues Classified by Major Geographic Region | Revenues, classified by the major geographic region in which our customers are located, for the three and six months ended March 31, 2023 and 2022 (dollars in thousands):
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 21,742 |  |  | $ | 21,955 |  |  | $ | 43,098 |  |  | $ | 57,084 |
Other Americas |  |  | 28 |  |  |  | 35 |  |  |  | 54 |  |  |  | 37 |
Germany |  |  | 24,627 |  |  |  | 23,131 |  |  |  | 42,791 |  |  |  | 42,640 |
Other Europe, Middle East and Africa |  |  | 3,512 |  |  |  | 2,567 |  |  |  | 7,184 |  |  |  | 6,530 |
Japan |  |  | 5,738 |  |  |  | 25,413 |  |  |  | 31,579 |  |  |  | 51,489 |
Other Asia-Pacific |  |  | 12,746 |  |  |  | 13,179 |  |  |  | 27,345 |  |  |  | 22,926 |
Total net revenues |  | $ | 68,393 |  |  | $ | 86,280 |  |  | $ | 152,051 |  |  | $ | 180,706 |
Summary of Significant Changes in Contract Assets and Deferred Revenue | The table below shows significant changes in contract assets (dollars in thousands):
|  | Contract assets |
Balance as of September 30, 2022 |  | $ | 76,292 |
Revenues recognized but not billed |  |  | 21,955 |
Amounts reclassified to Accounts receivable, net |  |  | (33,375 | )
Effect of foreign currency translation |  |  | 6,591 |
Balance as of March 31, 2023 |  | $ | 71,463 |
The table below shows significant changes in deferred revenue (dollars in thousands):
|  | Deferred revenue |
Balance as of September 30, 2022 |  | $ | 238,634 |
Amounts billed but not recognized |  |  | 42,217 |
Revenue recognized |  |  | (52,377 | )
Effect of foreign currency translation |  |  | 7,743 |
Balance as of March 31, 2023 |  | $ | 236,217 |
Summary of Estimated Revenue Expected to be Recognized in Future Related to Performance Obligations Unsatisfied or Partially Unsatisfied | The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied at March 31, 2023 (dollars in thousands):
|  | Within One Year |  |  | Two to Five Years |  |  | Greater than Five Years |  |  | Total |
Total revenue |  | $ | 155,413 |  |  | $ | 141,968 |  |  | $ | 24,187 |  |  | $ | 321,568 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130556-203045 + Details
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