Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2014
Apr. 30, 2014
Nov. 30, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Other Related Party Transactions [Line Items]            
Common shares issued 10,000,000          
Treasury stock [Member]            
Schedule of Other Related Party Transactions [Line Items]            
Common shares issued         24,195,412 9,073,732
Interest on withheld tax price       5.00%    
Leading Advice Holdings Limited [Member]            
Schedule of Other Related Party Transactions [Line Items]            
Common shares issued   14,195,412 9,073,732      
Aiden & Jasmine Limited [Member] | Treasury stock [Member]            
Schedule of Other Related Party Transactions [Line Items]            
Shares repurchased         3,860,733  
Shares repurchased, value         $ 10,879  
Interest on withheld tax         $ 37  
Vantage Point Global Limited [Member] | Treasury stock [Member]            
Schedule of Other Related Party Transactions [Line Items]            
Shares repurchased         10,334,679  
Shares repurchased, value         $ 29,121  
Interest on withheld tax         $ 100