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The Company and its Subsidiaries - Additional Information (Detail)
9 Months Ended
Sep. 30, 2016
Insurers
$ / shares
shares
Dec. 31, 2015
$ / shares
shares
May 11, 2015
$ / shares
shares
May 10, 2015
$ / shares
shares
Jan. 30, 2014
shares
Related Party Transaction [Line Items]          
Common stock, shares authorized 3,500,000,000 3,500,000,000 3,500,000,000 500,000,000  
Preferred stock, shares authorized 10,000,000   10,000,000 5,000,000  
Common stock, par value | $ / shares $ 0.00001 $ 0.00001 $ 0.00001 $ 0.00001  
Convertible preferred stock, par value | $ / shares $ 0.00001   $ 0.00001 $ 0.00001  
Common stock, shares issued 206,380,800 206,168,035      
Common stock, shares outstanding 206,380,800 206,168,035      
Preferred stock, shares issued 600,000 600,000      
Preferred stock, shares outstanding 600,000 600,000      
WMMRC [Member]          
Related Party Transaction [Line Items]          
Number of primary mortgage insurers | Insurers 7        
Convertible Series A Preferred Stock [Member]          
Related Party Transaction [Line Items]          
Convertible preferred stock, par value | $ / shares $ 0.00001 $ 0.00001      
Convertible preferred stock, shares issued 1,000,000 1,000,000     1,000,000
Convertible preferred stock, shares outstanding 1,000,000 1,000,000