Reportable Segments - Summarized financial information (Details) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2024
USD ($)
|
Jun. 30, 2023
USD ($)
|
Jun. 30, 2024
USD ($)
segment
|
Jun. 30, 2023
USD ($)
|
Sep. 30, 2023
USD ($)
|
|
| Summarized financial information concerning the Company's reportable segments | |||||
| Number of reportable segments | segment | 3 | ||||
| Revenue | $ 4,151,251 | $ 3,663,549 | $ 11,995,004 | $ 10,536,076 | |
| Gross profit | 285,044 | 250,078 | 790,188 | 693,160 | |
| Equity in earnings (losses) of joint ventures | 7,647 | (303,503) | (1,835) | (286,218) | |
| General and administrative expenses | (36,209) | (42,883) | (116,619) | (112,642) | |
| Restructuring costs | (29,025) | (9,115) | (80,670) | (50,547) | |
| Operating income (loss) | 227,457 | (105,423) | 591,064 | 243,753 | |
| Segment assets | 12,046,598 | 12,046,598 | $ 11,233,398 | ||
| Total | |||||
| Summarized financial information concerning the Company's reportable segments | |||||
| Revenue | 4,151,200 | 3,663,600 | 11,995,000 | 10,536,100 | |
| Gross profit | 285,100 | 250,100 | 790,200 | 693,200 | |
| Equity in earnings (losses) of joint ventures | 7,700 | (303,500) | (1,800) | (286,200) | |
| General and administrative expenses | (36,200) | (42,900) | (116,600) | (112,700) | |
| Restructuring costs | (29,100) | (9,100) | (80,700) | (50,500) | |
| Operating income (loss) | $ 227,500 | $ (105,400) | $ 591,100 | $ 243,800 | |
| Gross profit as a % of revenue | 6.90% | 6.80% | 6.60% | 6.60% | |
| Operating Segments | Americas | |||||
| Summarized financial information concerning the Company's reportable segments | |||||
| Revenue | $ 3,246,900 | $ 2,829,500 | $ 9,324,200 | $ 8,039,000 | |
| Gross profit | 203,900 | 182,900 | 559,300 | 519,100 | |
| Equity in earnings (losses) of joint ventures | 3,500 | 3,500 | 11,900 | 9,300 | |
| Operating income (loss) | $ 207,400 | $ 186,400 | $ 571,200 | $ 528,400 | |
| Gross profit as a % of revenue | 6.30% | 6.50% | 6.00% | 6.50% | |
| Segment assets | $ 7,862,300 | $ 7,862,300 | 7,433,100 | ||
| Operating Segments | International | |||||
| Summarized financial information concerning the Company's reportable segments | |||||
| Revenue | 904,200 | $ 834,300 | 2,670,000 | $ 2,496,900 | |
| Gross profit | 81,100 | 67,400 | 230,100 | 173,900 | |
| Equity in earnings (losses) of joint ventures | 3,500 | 200 | 12,800 | 8,900 | |
| Operating income (loss) | $ 84,600 | $ 67,600 | $ 242,900 | $ 182,800 | |
| Gross profit as a % of revenue | 9.00% | 8.10% | 8.60% | 7.00% | |
| Segment assets | $ 2,650,000 | $ 2,650,000 | 2,536,200 | ||
| Operating Segments | AECOM Capital | |||||
| Summarized financial information concerning the Company's reportable segments | |||||
| Revenue | 100 | $ (200) | 800 | $ 200 | |
| Gross profit | 100 | (200) | 800 | 200 | |
| Equity in earnings (losses) of joint ventures | 700 | (307,200) | (26,500) | (304,400) | |
| General and administrative expenses | (600) | (4,000) | (12,700) | (9,600) | |
| Operating income (loss) | 200 | (311,400) | (38,400) | (313,800) | |
| Segment assets | 54,700 | 54,700 | 64,500 | ||
| Corporate | |||||
| Summarized financial information concerning the Company's reportable segments | |||||
| General and administrative expenses | (35,600) | (38,900) | (103,900) | (103,100) | |
| Restructuring costs | (29,100) | (9,100) | (80,700) | (50,500) | |
| Operating income (loss) | (64,700) | $ (48,000) | (184,600) | $ (153,600) | |
| Segment assets | $ 1,343,600 | $ 1,343,600 | $ 1,104,400 | ||
| X | ||||||||||
- Definition The percentage of gross profit to total net revenue from services rendered. No definition available.
|
| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- 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. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|