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Commitments and Contingencies (Details) - USD ($) $ in Millions |  | 1 Months Ended | 3 Months Ended | 72 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 06, 2019 | Dec. 31, 2019 | Dec. 31, 2014 | Dec. 31, 2019 | Sep. 30, 2019 | Dec. 12, 2019 | Apr. 30, 2019 | Mar. 31, 2019
AECOM USA, Inc. |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Consent order |  |  |  |  |  | $ 0.1 |  |
Department of Energy Deactivation, Demolition, And Removal Project | Department of Energy | Maximum |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  | $ 106.0 |  | $ 106.0 |  |  |  |
Department of Energy Deactivation, Demolition, And Removal Project | AECOM E&C and DOE | Minimum |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  | 106.0 |  | 106.0 |  |  |  |
Department of Energy Deactivation, Demolition, And Removal Project | AECOM E&C and DOE | Maximum |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  | 146.0 |  | 146.0 |  |  |  |
Department of Energy Deactivation, Demolition, And Removal Project | AECOM E&C |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Claim to DOE, including additional fees | $ 60.4 |  | $ 103.0 |  |  |  |  |
Possible costs which may exceed contracted amounts |  |  | $ 100.0 |  |  |  |  |
Department of Energy Deactivation, Demolition, And Removal Project | AECOM E&C | Minimum |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  | 146.0 |  | 146.0 |  |  |  |
Claim to DOE, including additional fees |  |  |  |  | $ 148.5 |  |  |
Department of Energy Deactivation, Demolition, And Removal Project | AECOM E&C | Maximum |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Claim to DOE, including additional fees |  |  |  |  | $ 329.4 |  |  |
Refinery Turnaround Project |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Damages paid, value |  | 93.0 |  |  |  |  |  |
Refinery Turnaround Project | AECOM E&C |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Damages claimed, value |  |  |  | 144.0 |  |  |  |
Recoverable from refinery owner |  |  |  | 90.0 |  |  |  |
Loss contingency, receivable amount |  |  |  |  |  |  | $ 132.0 | $ 79.0
AECOM-Canyon Equity Fund, L.P |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Capital commitments |  |  |  | $ 35.0 |  |  |  |
Term of capital commitments |  |  |  | 10 years |  |  |  |
Standby letter of credit |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Contingency liability |  | $ 499.3 |  | $ 499.3 |  |  |  |
Surety Bond |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |
Surety bonds issued |  |  |  | $ 4,800.0 |  |  |  |

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