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Receivables, Net - Components of Receivables, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Receivables [Abstract]    
Escrow proceeds and other accounts receivable, net $ 13,995 $ 89,783
Warranty insurance receivable 37,597 35,817
Total receivables $ 51,592 $ 125,600