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Receivables - Narrative (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Receivables [Abstract]    
Receivables Related To FHA Or VA Insured Loans $ 59.8 $ 54.0
Allowance For Losses Related To FHA Or VA Insured Loans 16.4 14.0
Other receivables, probable losses $ 13.6