Accrued Expenses and Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	May 31, 2013	Nov. 30, 2012	Aug. 31, 2012	May 31, 2012	Nov. 30, 2011
Payables and Accruals [Abstract]
Employee compensation and related benefits	$ 104,145		$ 97,189
Construction defect and other litigation liabilities	104,808		107,111
Warranty liability	50,485	53,475	47,822	47,326	50,866	67,693
Accrued interest payable	53,563		47,392
Liabilities related to inventory not owned	8,932		4,100
Real estate and business taxes	7,185		8,453
Other	51,648		28,278
Total	$ 380,766		$ 340,345