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REAL ESTATE INVENTORY AND LAND DEPOSITS - Additional Information (Detail)
$ in Millions
Jun. 30, 2017
USD ($)
Lot
Dec. 31, 2016
USD ($)
Lot
Real Estate [Abstract]    
Right to purchase lots of land option (in lot) | Lot 7,331 7,583
Aggregate purchase price $ 523.5 $ 542.6
Non-refundable option deposits $ 53.0 $ 37.2