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Discontinued Operations, Goodwill, and Intangible Assets - Income statement information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Discontinued Operations, Goodwill and Intangible Assets |  |  |
Impairment of long-lived assets | $ (86,199) |  | $ (105,194)
Net loss from discontinuing operations | (57,207) | $ (79,929) | (116,813)
Held for sale |  |  |
Discontinued Operations, Goodwill and Intangible Assets |  |  |
Revenue | 212,800 | 347,400 | 771,500
Cost of revenue | 223,200 | 360,200 | 760,500
Gross (loss) profit | (10,400) | (12,800) | 11,000
Equity in earnings of joint ventures | (2,900) | (7,400) | 4,000
Loss on disposal activities | (50,600) | (48,100) | (52,500)
Transaction costs | (200) | (9,700) | (15,300)
Impairment of long-lived assets |  |  | 105,200
Loss from operations | (64,100) | (78,000) | (158,000)
Other loss | (1,000) |  |
Interest expense |  | (100) | (500)
Loss before taxes | (65,100) | (78,100) | (158,500)
Income tax (benefit) expense | (7,900) | 1,800 | (41,700)
Net loss from discontinuing operations | $ (57,200) | $ (79,900) | $ (116,800)

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