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Reportable Segments (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 segment | Dec. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2015 segment | Mar. 31, 2014 | Sep. 30, 2014
Summarized financial information concerning the Company's reportable segments |  |  |  |  |  |
Number of reportable segments | 3 us-gaap_NumberOfReportableSegments |  |  | 3 us-gaap_NumberOfReportableSegments |  |
Revenue | $ 4,506,197 us-gaap_SalesRevenueServicesNet |  | $ 1,872,224 us-gaap_SalesRevenueServicesNet | $ 8,716,665 us-gaap_SalesRevenueServicesNet | $ 3,826,099 us-gaap_SalesRevenueServicesNet |
Gross profit | 103,312 us-gaap_GrossProfit |  | 87,407 us-gaap_GrossProfit | 238,042 us-gaap_GrossProfit | 165,605 us-gaap_GrossProfit |
Equity in (losses) earnings of joint ventures | 24,628 us-gaap_IncomeLossFromEquityMethodInvestments |  | 7,436 us-gaap_IncomeLossFromEquityMethodInvestments | 48,552 us-gaap_IncomeLossFromEquityMethodInvestments | 43,519 us-gaap_IncomeLossFromEquityMethodInvestments |
General and administrative expenses | (29,797)us-gaap_GeneralAndAdministrativeExpense |  | (26,449)us-gaap_GeneralAndAdministrativeExpense | (64,135)us-gaap_GeneralAndAdministrativeExpense | (50,294)us-gaap_GeneralAndAdministrativeExpense |
Acquisition and integration expenses | (91,599)us-gaap_BusinessCombinationAcquisitionRelatedCosts |  |  | (230,062)us-gaap_BusinessCombinationAcquisitionRelatedCosts |  |
Operating income | 6,544 us-gaap_OperatingIncomeLoss |  | 68,394 us-gaap_OperatingIncomeLoss | (7,603)us-gaap_OperatingIncomeLoss | 158,830 us-gaap_OperatingIncomeLoss |
Gross profit as a % of revenue |  | 2.30%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet | 4.70%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet | 2.70%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet | 4.30%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet |
Total Assets | 14,016,005 us-gaap_Assets |  |  | 14,016,005 us-gaap_Assets |  | 6,123,377 us-gaap_Assets
Corporate |  |  |  |  |  |
Summarized financial information concerning the Company's reportable segments |  |  |  |  |  |
General and administrative expenses | (29,800)us-gaap_GeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  | (26,400)us-gaap_GeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (64,100)us-gaap_GeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (50,300)us-gaap_GeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Acquisition and integration expenses | (91,600)us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |  | (230,100)us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |
Operating income | (121,400)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  | (26,400)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (294,200)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (50,300)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Total Assets | 603,900 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |  | 603,900 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  | 365,000 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Design and Consulting Services |  |  |  |  |  |
Summarized financial information concerning the Company's reportable segments |  |  |  |  |  |
Revenue | 2,035,900 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | 1,306,900 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 3,927,600 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 2,608,300 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |
Gross profit | 53,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | 76,400 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 99,400 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 130,300 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |
Equity in (losses) earnings of joint ventures | (1,400)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | (400)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | 32,300 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |
Operating income | 51,600 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | 76,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 99,400 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 162,600 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |
Gross profit as a % of revenue | 2.60%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | 5.80%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 2.50%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember | 5.00%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |
Total Assets | 7,179,600 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  |  | 7,179,600 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember |  | 4,064,500 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_DesignConsultingServicesMember
Construction Services |  |  |  |  |  |
Summarized financial information concerning the Company's reportable segments |  |  |  |  |  |
Revenue | 1,641,100 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  | 338,900 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 3,175,200 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 767,600 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |
Gross profit | 2,500 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  | 7,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 37,800 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 11,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |
Equity in (losses) earnings of joint ventures | 4,700 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  | 700 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 10,600 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 2,100 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |
Operating income | 7,200 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  | 7,700 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 48,400 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 13,100 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |
Gross profit as a % of revenue | 0.20%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  | 2.10%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 1.20%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember | 1.40%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |
Total Assets | 3,117,600 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  |  | 3,117,600 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember |  | 1,256,400 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_ConstructionServicesMember
Management Services |  |  |  |  |  |
Summarized financial information concerning the Company's reportable segments |  |  |  |  |  |
Revenue | 829,200 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  | 226,400 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 1,613,900 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 450,200 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |
Gross profit | 47,700 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  | 4,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 100,800 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 24,300 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |
Equity in (losses) earnings of joint ventures | 21,400 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  | 7,100 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 38,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 9,100 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |
Operating income | 69,100 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  | 11,100 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 138,800 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 33,400 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |
Gross profit as a % of revenue | 5.80%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  | 1.80%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 6.20%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember | 5.40%acm_GrossProfitAsPercentageOfSalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |
Total Assets | $ 3,114,900 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  |  | $ 3,114,900 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember |  | $ 437,500 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = acm_ManagementSupportServicesMember

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