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Business Acquisitions, Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Sep. 30, 2018
Business Acquisitions, Goodwill and Intangible Assets |
Schedule of acquisition and integration expenses | Acquisition and integration expenses, relating to business acquisitions, in the accompanying consolidated statements of operations are comprised of the following (in millions):
|  | Fiscal Year Ended
|  | Sept 30, 2017
Severance and personnel costs |  | $ | 32.0
Professional services, real estate-related, and other expenses |  |  | 6.7
Total |  | $ | 38.7
Schedule of changes in the carrying value of goodwill by reportable segment |
|  | Fiscal Year 2018
|  |  |  | Measurement |  |  |  | Foreign |  |
|  | September 30, |  | Period |  |  |  | Exchange |  | September 30,
|  | 2017 |  | Adjustment |  | Impairment |  | Impact |  | 2018
|  | (in millions)
Design and Consulting Services |  | $ | 3,218.9 |  | $ | — |  | $ | — |  | $ | (29.7) |  | $ | 3,189.2
Construction Services |  |  | 1,049.9 |  |  | 91.0 |  |  | (125.4) |  |  | (6.6) |  |  | 1,008.9
Management Services |  |  | 1,724.1 |  |  | — |  |  | — |  |  | (1.1) |  |  | 1,723.0
Total |  | $ | 5,992.9 |  | $ | 91.0 |  | $ | (125.4) |  | $ | (37.4) |  | $ | 5,921.1
|  | Fiscal Year 2017
|  |  |  |  |  |  |  |  |  |  | Foreign |  |  |
|  | September 30, |  |  |  |  |  |  |  | Exchange |  | September 30,
|  | 2016 |  | Acquisition |  | Disposed |  | Impact |  | 2017
|  | (in millions)
Design and Consulting Services |  | $ | 3,198.2 |  | $ | 3.8 |  | $ | (1.8) |  | $ | 18.7 |  | $ | 3,218.9
Construction Services |  |  | 915.2 |  |  | 123.3 |  |  | — |  |  | 11.4 |  |  | 1,049.9
Management Services |  |  | 1,710.4 |  |  | — |  |  | — |  |  | 13.7 |  |  | 1,724.1
Total |  | $ | 5,823.8 |  | $ | 127.1 |  | $ | (1.8) |  | $ | 43.8 |  | $ | 5,992.9
Schedule of finite-lived intangible assets by major class |
|  | September 30, 2018 |  | September 30, 2017 |  | Amortization
|  | Gross |  | Accumulated |  | Intangible |  | Gross |  | Accumulated |  | Intangible |  | Period
|  | Amount |  | Amortization |  | Assets, Net |  | Amount |  | Amortization |  | Assets, Net |  | (years)
|  | (in millions)
Backlog and customer relationships |  | $ | 1,285.1 |  | $ | (966.0) |  | $ | 319.1 |  | $ | 1,283.6 |  | $ | (870.2) |  | $ | 413.4 |  | 1 - 11
Trademark / tradename |  |  | 18.3 |  |  | (17.5) |  |  | 0.8 |  |  | 18.3 |  |  | (16.6) |  |  | 1.7 |  | 0.3 - 2
Total |  | $ | 1,303.4 |  | $ | (983.5) |  | $ | 319.9 |  | $ | 1,301.9 |  | $ | (886.8) |  | $ | 415.1 |  |
Schedule of estimated future amortization expense of intangible assets |
Fiscal Year |  | (in millions)
2019 |  | $ | 83.7
2020 |  |  | 69.8
2021 |  |  | 56.8
2022 |  |  | 44.0
2023 |  |  | 39.5
Thereafter |  |  | 26.1
Total |  | $ | 319.9

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