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Variable Interest Entities (Details)
$ in Thousands
Nov. 30, 2016
USD ($)
joint_venture
Nov. 30, 2015
USD ($)
joint_venture
Variable Interest Entity [Line Items]    
Number of Investments in Unconsolidated Joint Ventures | joint_venture 7 7
Cash Deposits $ 42,829 $ 54,537
Aggregate Purchase Price 1,073,596 1,187,707
Acquisition Costs Related To Land Option Contracts And Other Similar Contracts 56,000 65,600
Increase in inventories and accrued expenses and other liabilities $ 50,500 $ 110,000
Unconsolidated VIEs [Member]    
Variable Interest Entity [Line Items]    
Number of Investments in Unconsolidated Joint Ventures | joint_venture 1 0
Cash Deposits $ 24,910 $ 32,436
Aggregate Purchase Price 641,642 611,567
Other land option contracts and other similar contracts [Member]    
Variable Interest Entity [Line Items]    
Cash Deposits 17,919 22,101
Aggregate Purchase Price $ 431,954 $ 576,140