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Note 18 - Disclosures About Fair Value - Carrying Values and Estimated Fair Value of Other Financial Instruments (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Fair Value, Inputs, Level 2 [Member] | Financial Services [Member]    
Mortgage loans held for investment, net $ 24,450 $ 22,704
Senior notes payable 24,450 22,704
Fair Value, Inputs, Level 2 [Member] | Homebuilding [Member]    
Senior and convertible senior notes payable, net 3,393,799 3,462,016
Senior and convertible senior notes payable, net 3,677,455 3,675,276
Financial Services [Member]    
Mortgage loans held for investment, net 24,450 22,704
Homebuilding [Member]    
Senior notes payable $ 3,393,799 $ 3,462,016