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Contract Assets and Liabilities | 9 Months Ended
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Jun. 30, 2025
Revenue from Contract with Customer [Abstract] |
Contract Assets and Liabilities | Contract Assets and Liabilities Costs and estimated earnings compared to billings on uncompleted contracts at June 30, 2025 and September 30, 2024 consisted of the following (in thousands):
| June 30, 2025 |  | September 30, 2024
| (unaudited) |  |
Costs on uncompleted contracts | $ | 3,405,243 |  |  | $ | 2,224,511 |
Estimated earnings to date on uncompleted contracts | 412,813 |  |  | 271,719 |
| 3,818,056 |  |  | 2,496,230 |
Billings to date on uncompleted contracts | (3,887,644) |  |  | (2,590,329) |
Net billings in excess of costs and estimated earnings on uncompleted contracts | $ | (69,588) |  |  | $ | (94,099) |
Significant changes to balances of costs and estimated earnings in excess of billings (contract asset) and billings in excess of costs and estimated earnings (contract liability) on uncompleted contracts from September 30, 2023 to June 30, 2024 and September 30, 2024 to June 30, 2025 are presented below (in thousands):
| Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts |  | Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts |  | Net Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts
September 30, 2023 | $ | 27,296 |  |  | $ | (78,905) |  |  | $ | (51,609) |
Changes in revenue billed, contract price or cost estimates | 5,254 |  |  | (34,290) |  |  | (29,036) |
June 30, 2024 (unaudited) | $ | 32,550 |  |  | $ | (113,195) |  |  | $ | (80,645) |
September 30, 2024 | $ | 25,966 |  |  | $ | (120,065) |  |  | $ | (94,099) |
Changes in revenue billed, contract price or cost estimates | 28,598 |  |  | (4,087) |  |  | 24,511 |
June 30, 2025 (unaudited) | $ | 54,564 |  |  | $ | (124,152) |  |  | $ | (69,588) |
At June 30, 2025, the Company had unsatisfied or partially unsatisfied performance obligations under construction project contracts representing approximately $2.2 billion in aggregate transaction price. The Company expects to earn revenue as it satisfies its performance obligations under such contracts in the amount of approximately $0.7 billion during the remainder of the fiscal year ending September 30, 2025 and $1.5 billion thereafter.

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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 -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-15 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org/606/tableOfContent + Details
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