Commitments and Contingencies (Details) (Homebuilding [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
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Mar. 31, 2014
|
Mar. 31, 2013
|
Mar. 31, 2014
|
Mar. 31, 2013
|
|
Homebuilding [Member]
|
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Changes in warranty liability | ||||
Warranty liability, beginning of period | $ 56.7 | $ 56.6 | $ 56.9 | $ 56.8 |
Warranties issued | 7.4 | 6.1 | 14.6 | 11.6 |
Changes in liability for pre-existing warranties | 1.1 | 1.6 | 2.1 | 5.2 |
Settlements made | (7.9) | (7.0) | (16.3) | (16.3) |
Warranty liability, end of period | $ 57.3 | $ 57.3 | $ 57.3 | $ 57.3 |