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Business Acquisitions, Goodwill and Intangible Assets - Disposal Group (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2017
Classification of related assets and liabilities of the Disposal Group as held for sale in the consolidated balance sheet |  |  |
Loss on disposal of portion of assets in the disposal group | $ 2,149 | $ 2,149 | $ (572)
Impairment of goodwill |  | 125,400 |
Summary of financial information of the Disposal Group is as follows: |  |  |
Impairment of assets held for sale, including goodwill |  | 168,178 |
Construction Services | Disposal Group as held for sale |  |  |
Classification of related assets and liabilities of the Disposal Group as held for sale in the consolidated balance sheet |  |  |
Loss on disposal of portion of assets in the disposal group | 2,100 |  |
Impairment of goodwill |  | 125,400 |
Impairment of intangible and other noncurrent assets |  | 42,800 |
Accounts receivable included in Current assets held for sale | 48,000 | 48,000 |
Property plant and equipment included in Current assets held for sale | 14,300 | 14,300 |
Accounts payable included in Current liabilities held for sale | $ 12,600 | $ 12,600 |

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