Inventory Impairments and Land Option Cost Write-Offs (Details) (Homebuilding [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | |||
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Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Sep. 30, 2012
|
|
Homebuilding [Member]
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Inventory Impairments and Land Option Cost Write Offs [Abstract] | |||||
Carrying value of communities with impairment indicators | $ 177.1 | $ 177.1 | |||
Carrying value of communities impaired | 0 | 0 | |||
Impairment charges | 0 | 1.9 | 0 | 2.6 | |
Write-offs (recoveries) of earnest money deposits and pre-acquisition costs | 0.8 | 0.6 | 4.0 | 2.1 | |
Land held for sale | $ 22.0 | $ 22.0 | $ 32.6 |