Inventory Impairments and Land Option Contract Abandonments (Tables)

12 Months Ended

Nov. 30, 2012

Inventory Impairments and Land Option Contract Abandonments [Abstract]

Schedule of significant unobservable inputs

The following table summarizes ranges for significant quantitative unobservable inputs we utilized in our fair value measurements with respect to the impaired communities or land parcels written down to fair value during the years presented:

	Years Ended November 30,
Unobservable Input (a)	2012	2011	2010
Average selling price	$115,200 - $556,300	$142,900 - $391,900	$96,600 - $256,400
Deliveries per month	1 - 6	1 - 10	3 - 6
Discount rate	17% - 20%	17% - 20%	17% - 20%

(a) The ranges of inputs used primarily reflect the underlying variability among the various housing markets where each of the impacted communities or land parcels are located, rather than fluctuations in prevailing market conditions.