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Commitments and Contingencies (Details) - USD ($) $ in Millions |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 31, 2019 | May 24, 2018 | Jul. 03, 2017 | Apr. 01, 2017 | Apr. 30, 2019 | Dec. 31, 2014 | Oct. 01, 2019 | Sep. 30, 2019 | Apr. 25, 2019 | Mar. 31, 2019 | Mar. 26, 2019 | Feb. 28, 2019
URS | Design build contractor |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Damages claimed, value |  | $ 11.9 | $ 70.0 | $ 8.2 |  |  |  |  |  |  |  |
Advatech LLC | Genco |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Damages claimed, value |  |  |  |  | $ 132.0 |  |  |  |  |  |  |
Department of Energy Deactivation, Demolition, and Removal Project | Department of Energy |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  |  |  |  |  |  |  | $ 106.0 |  |  |  |
Department of Energy Deactivation, Demolition, and Removal Project | AECOM E&C and DOE |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  |  |  |  |  |  |  | 146.0 |  |  |  |
Department of Energy Deactivation, Demolition, and Removal Project | AECOM E&C and DOE | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  |  |  |  |  |  |  | 106.0 |  |  |  |
Department of Energy Deactivation, Demolition, and Removal Project | AECOM E&C |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Cost-reimbursement at risk |  |  |  |  |  |  |  | 146.0 |  |  |  |
Claim to DOE, including additional fees |  |  |  |  |  | $ 103.0 |  |  |  |  |  |
Possible costs which may exceed contracted amounts |  |  |  |  |  | $ 100.0 |  |  |  |  |  |
Refinery Turnaround Project | AECOM E&C |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Damages claimed, value | $ 144.0 |  |  |  |  |  |  |  |  |  |  |
Recoverable from refinery owner |  |  |  |  |  |  |  | 90.0 |  |  |  | $ 90.0
Loss contingency, receivable amount |  |  |  |  |  |  |  |  | $ 132.0 | $ 79.0 | $ 79.0 |
AECOM-Canyon Equity Fund, L.P |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Capital commitments |  |  |  |  |  |  |  | $ 35.0 |  |  |  |
Term (in years) |  |  |  |  |  |  |  | 10 years |  |  |  |
URS | Design build contractor |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Damages claimed, value |  |  |  |  |  |  | $ 103.7 |  |  |  |  |
Damage claimed |  |  |  |  |  |  | 4.9 |  |  |  |  |
Amount awarded |  |  |  |  |  |  | 4.9 |  |  |  |  |
Amount awarded to contractor |  |  |  |  |  |  | $ 2.7 |  |  |  |  |
Standby letter of credit |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Contingency liability |  |  |  |  |  |  |  | $ 493.7 |  |  |  |
Surety Bond |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |
Contingency liability |  |  |  |  |  |  |  | $ 4,800.0 |  |  |  |

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