Fair Value Measurements (Summary Of Fair Value Impairment Of Inventory) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	$ 18,564
Land And Land Under Development [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	11,161
Land And Land Under Development [Member] | West [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	9,115
Land And Land Under Development [Member] | Mountain [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	808
Land And Land Under Development [Member] | East [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory
Land And Land Under Development [Member] | Other Homebuilding [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	1,238
Housing Completed Or Under Construction [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	7,403
Housing Completed Or Under Construction [Member] | West [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	4,437
Housing Completed Or Under Construction [Member] | Mountain [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	1,500
Housing Completed Or Under Construction [Member] | East [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory
Housing Completed Or Under Construction [Member] | Other Homebuilding [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	1,466
West [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	13,552
Mountain [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	2,308
East [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory
Other Homebuilding [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Fair Value Of Impaired Inventory	$ 2,704