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Revenue | 12 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Revenue | Note 4 — Revenue Contract Balances The following table provides information about Accounts receivable, both billed and unbilled and deferred revenue:
|  | As of |
|  | September 30, 2021 |  |  | September 30, 2020 |
Accounts receivable — billed (net of allowances for doubtful accounts of $20,065 and $23,419 as of September 30, 2021 and 2020, respectively) |  | $ | 704,541 |  |  | $ | 685,485 |
Accounts receivable — unbilled (current) |  | $ | 162,278 |  |  | $ | 175,548 |
Accounts receivable — unbilled (non-current) |  | $ | 38,252 |  |  | $ | 42,089 |
Total Accounts receivable — unbilled |  | $ | 200,530 |  |  | $ | 217,637 |
Deferred revenue (current) |  | $ | (237,374 | ) |  | $ | (126,841 | )
Deferred revenue (non-current) |  | $ | (108,675 | ) |  | $ | (16,529 | )
Total Deferred revenue |  | $ | (346,049 | ) |  | $ | (143,370 | )
Revenue recognized during the year ended September 30, 2021, which was included in deferred revenue (current) as of September 30, 2020 was $115,474. Revenue recognized during the year ended September 30, 2020, which was included in deferred revenue (current) as of September 30, 2019 was $104,648. Remaining Performance Obligations from Contracts with Customer As of September 30, 2021, the aggregate amount of the transaction price allocated to remaining performance obligations that are unsatisfied or partially unsatisfied was approximately $6.7 billion. Remaining performance obligations typically include the remaining non-cancelable, committed and fixed portion of contracts for their entire duration and therefore it is not comparable to what the Company considers to be next 12 months backlog. Given the profile of contract terms, the majority of this amount is expected to be recognized as revenue over the next three years . Disaggregation of Revenue The Company considers information that is regularly reviewed by its chief operating decision makers in evaluating financial performance to disaggregate revenue. Please see Note 21 — Segment Information and Sales to Significant Customers.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 + Details
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