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v3.23.3

Revenue - Contract Estimates (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2023 USD ($) project | Sep. 30, 2022 USD ($)
Revenue from Contract with Customer [Abstract] |  |
Change in contract estimates related to projects in progress | $ 13.6 | $ 11.3
Projects cancelled | project | 4 |
Change in contract estimates due to project cancellations | $ 4.3 |

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- Definition Number Of Projects Cancelled + References No definition available. + Details
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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 + Details
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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from contract modification which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 + Details
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- References No definition available. + Details
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