Significant Accounting Policies - Concentration of Risks (Details) |
3 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Concentration Risk [Line Items] | ||
| Number Of Reportable Segments, Not Disclosed Flag | ||
| Revenues | Customer Concentration Risk | Florida Department of Transportation | ||
| Concentration Risk [Line Items] | ||
| Concentration risk percentage | 11.20% | |
| Revenues | Customer Concentration Risk | Public | ||
| Concentration Risk [Line Items] | ||
| Concentration risk percentage | 65.30% | 57.70% |
| Revenues | Customer Concentration Risk | Private | ||
| Concentration Risk [Line Items] | ||
| Concentration risk percentage | 34.70% | 42.30% |
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- Definition Number Of Reportable Segments, Not Disclosed Flag No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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