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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Mar. 31, 2013
Supplemental Cash Flow Elements [Abstract] |
Supplemental disclosure of non-cash activity |
| Six Months Ended
| March 31,
(In thousands) | 2013 |  | 2012
Supplemental disclosure of non-cash activity: |  |  |
(Decrease) increase in obligations related to land not owned under option agreements | $ | (1,501 | ) |  | $ | 871 |
Decrease in future land purchase rights | — |  |  | (11,651 | )
Contribution of future land purchase rights to unconsolidated entities | — |  |  | 11,651 |
Decrease in debt related to conversion of Mandatory Convertible Subordinated Notes and Tangible Equity Units for common stock | (9,402 | ) |  | (55,308 | )
Supplemental disclosure of cash activity: |  |  |
Interest payments | 48,944 |  |  | 60,145 |
Income tax payments | 121 |  |  | 518 |
Tax refunds received | 3,925 |  |  | 2,564 |

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