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Contract Revenue and Pass- Through and Other (Tables) | 12 Months Ended
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Sep. 30, 2020
Revenue From Contract With Customer [Abstract] |
Schedule of Deferred Revenue Remaining Performance Obligations | The deferred revenue balance as of September 30, 2020 represents our aggregate remaining performance obligations that will be recognized as revenue over the period in which the performance obligations are satisfied, and is expected to be recognized as revenue as follows (In thousands):
Periods Ending |  |  |  |
September 30, |  | Total Revenue |
2021 |  | $ | 8,177 |
2022 |  |  | 8,969 |
2023 |  |  | 3,883 |
2024 |  |  | 2,730 |
Total |  | $ | 23,759 |

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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 http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045 + Details
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