XML 79 R53.htm IDEA: XBRL DOCUMENT v3.20.2

Discontinued Operations, Goodwill, and Intangible Assets - Significant components included in Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Discontinued Operations, Goodwill, and Intangible Assets
Property and equipment	$ 4.6	$ 26.9
Intangible assets and capitalized debt issuance costs	26.0	66.5
Payments for capital expenditures	$ (19.6)	$ (20.1)

X

- Definition

Amount of deprecation and amortization expense attributable to intangible assets and capitalized debt issuance costs of discontinued operations.

+ References

No definition available.

+ Details

Name:	acm_DepreciationAndAmortizationDiscontinuedOperationsIntangibleAssetsAndCapitalizedDebtIssuanceCosts
Namespace Prefix:	acm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of deprecation and amortization expense attributable to property, plant and equipment of discontinued operations.

+ References

No definition available.

+ Details

Name:	acm_DepreciationAndAmortizationDiscontinuedOperationsPropertyPlantAndEquipment
Namespace Prefix:	acm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	acm_DiscontinuedOperationsGoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix:	acm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of capital expenditure attributable to discontinued operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

+ Details

Name:	us-gaap_CapitalExpenditureDiscontinuedOperations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration