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Other Assets, Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Sep. 30, 2020
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Other Assets, Accrued Expenses and Other Liabilities [Abstract] |  |
Receivables, net | $ 3.2 | $ 0.4
Earnest money notes receivable on sales contracts | 2.6 | 4.8
Lease right of use assets | 4.9 | 3.6
Prepaid expenses | 5.3 | 4.9
Land purchase contract deposits | 9.9 | 5.5
Other assets | 4.3 | 5.7
Total Other assets | 30.2 | 24.9
Accrued employee compensation and benefits | 5.9 | 6.2
Accrued property taxes | 1.8 | 3.8
Lease liabilities | 5.3 | 3.8
Accrued interest | 14.3 | 14.0
Contract liabilities | 0.2 | 0.2
Deferred income | 9.3 | 9.3
Income taxes payable | 2.8 | 0.5
Accrued development costs | 68.2 | 44.4
Other accrued expenses | 3.4 | 10.2
Other liabilities | 1.2 | 1.4
Total Accrued expenses and other liabilities | $ 112.4 | $ 93.8

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