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Share-Based Payments - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Mar. 31, 2016
Jan. 31, 2016
Apr. 30, 2015
Jan. 31, 2015
Jan. 31, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2012
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Shares available for future grant           2,378,630        
Awarded           648,351 734,823 610,143    
Restricted stock surrendered, in values             $ 1,000 $ 2,000    
Restricted stock, unvested           196,453 411,409 568,057   721,752
Forfeited           608,000 663,855 544,651    
Unrecognized compensation, non-vested restricted stock awards           $ 800,000        
Unrecognized compensation, non-vested restricted stock awards expected recognized period           10 months 6 days        
Recognition Technology in Connection with Toy Products                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Number of stock warrants granted to third party in connection with acquisition                 1,500,000  
Exercise price of warrants                 $ 16.28  
Warrants exercisable term                 5 years  
Stock Options                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period           4 years        
Restricted Stock                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Awarded           648,351 734,823 610,143    
Shares of restricted stock cancelled           24,822 51,633      
Restricted stock surrendered, (in shares)           50,719 52,024 51,877    
Restricted stock surrendered, in values           $ 1,500,000 $ 400,000      
Restricted stock, unvested           196,453 411,409 568,057    
Weighted average grant date fair value           $ 1,400,000 $ 2,700,000 $ 3,700,000    
Restricted Stock | Executive officer                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period 3 years 3 years 3 years 3 years            
Awarded               531,993    
Shares of restricted stock issued           583,178 660,968      
Forfeited             612,221      
Restricted Stock | Non-employee directors                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Restricted stock grants           $ 100,000        
Awarded           65,173 73,855 78,150    
Restricted Stock | Non-executive employees                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Shares of restricted stock cancelled               12,658    
Restricted Stock | Minimum                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period           1 year        
Restricted Stock | Minimum | Executive officer                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period         1 year          
Restricted Stock | Maximum                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period           2 years        
Restricted stock surrendered, in values               $ 100,000    
Restricted Stock | Maximum | Executive officer                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period         3 years