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Variable Interest Entities (Details) (USD $)
Feb. 28, 2014
Nov. 30, 2013
Variable Interest Entity [Line Items]    
Cash Deposits $ 55,634,000 $ 41,565,000
Aggregate Purchase Price 1,090,566,000 1,151,496,000
Pre-acquisition costs related to land option contracts and other similar contracts 34,700,000 31,000,000
Outstanding letters of credit 100,000 100,000
Increase in inventories and accrued expenses and other liabilities 9,800,000 8,900,000
Variable Interest Entity, Not Primary Beneficiary [Member]
   
Variable Interest Entity [Line Items]    
Cash Deposits 25,031,000 11,063,000
Aggregate Purchase Price 589,713,000 616,000,000
Non-VIE Other land option contracts and other similar contracts [Member]
   
Variable Interest Entity [Line Items]    
Cash Deposits 30,603,000 30,502,000
Aggregate Purchase Price $ 500,853,000 $ 535,496,000