Inventory - Results of Discounted Cash Flow Analysis (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Continuing Operations
Real Estate, Write-down or Reserve [Line Items]
Impairment Charges	$ 0	$ 59
Continuing Operations | Unallocated
Real Estate, Write-down or Reserve [Line Items]
Impairment Charges	0	0
Continuing Operations | West Segment
Real Estate, Write-down or Reserve [Line Items]
Impairment Charges	0	46
Continuing Operations | East Segment
Real Estate, Write-down or Reserve [Line Items]
Impairment Charges	0	13
Continuing Operations | Southeast Segment
Real Estate, Write-down or Reserve [Line Items]
Impairment Charges	0	0
Discontinued Operations
Real Estate, Write-down or Reserve [Line Items]
Impairment Charges	$ 0	$ 0