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Property and Equipment | 6 Months Ended
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Mar. 31, 2021
Property and Equipment [Abstract] |
Property, Plant and Equipment Disclosure [Text Block] | PROPERTY AND EQUIPMENT The Company’s property and equipment balances and the related accumulated depreciation at March 31, 2021 and September 30, 2020 are summarized below.
| March 31, 2021 |  | September 30, 2020
| (In millions)
Homebuilding |  |  |
Buildings and improvements | $ | 275.0 |  |  | $ | 267.4 |
Model home furniture | 133.1 |  |  | 134.0 |
Office furniture and equipment | 110.8 |  |  | 108.1 |
Land | 33.1 |  |  | 32.3 |
Single-family rental operations |  |  |
Single-family rental properties | 158.7 |  |  | 68.1 |
Land | 23.9 |  |  | 19.1 |
Total single-family rental operations | 182.6 |  |  | 87.2 |
Accumulated depreciation | (271.4) |  |  | (256.2) |
Total homebuilding | 463.2 |  |  | 372.8 |
Other Businesses |  |  |
Multi-family rental operations |  |  |
Multi-family rental properties | 248.9 |  |  | 173.8 |
Land | 106.5 |  |  | 58.3 |
Total multi-family rental operations | 355.4 |  |  | 232.1 |
Oil and gas related assets | 71.1 |  |  | 69.7 |
Office furniture and equipment | 16.8 |  |  | 15.6 |
Land | 19.7 |  |  | 19.7 |
Accumulated depreciation | (30.6) |  |  | (28.2) |
Total other businesses | 432.4 |  |  | 308.9 |
Forestar, net | 2.0 |  |  | 1.1 |
Financial services, net | 3.5 |  |  | 3.9 |
Eliminations | (6.1) |  |  | (3.0) |
Property and equipment, net | $ | 895.0 |  |  | $ | 683.7 |
Depreciation expense was $17.0 million and $34.8 million during the three and six months ended March 31, 2021, respectively, compared to $17.3 million and $34.5 million in the same periods of fiscal 2020.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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