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Share-based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 22, 2015
Jun. 23, 2015
Jun. 16, 2015
Apr. 29, 2015
Apr. 27, 2015
Mar. 24, 2015
Mar. 21, 2015
Jan. 28, 2015
Oct. 13, 2014
Jan. 01, 2008
Sep. 30, 2015
Sep. 30, 2015
Dec. 31, 2013
Dec. 31, 2012
Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Unrecognized share-based compensation cost in respect of granted share options                     $ 57 $ 57      
General and Administrative Expenses [Member] | Discontinued Operations [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Compensation cost recognized                     $ 15 $ 35      
2008 Stock Incentive Plan [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Share based compensation arrangement by share options                   359,299          
Increase in shares authorized                         1,200,000 900,000 600,000
Common stock reserved for future issuance                     10,568 10,568      
2015 Stock Incentive Plan [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Share based compensation arrangement by share options         2,500,000                    
Common stock reserved for future issuance                     1,053,500 1,053,500      
Employee Stock Option [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Share based compensation arrangement by share options   25,000                          
Share based compensation arrangement, vesting period   4 years                          
Restricted Share Units [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Number of assumed equity awards outstanding of acquired entity             960,000       960,000 960,000      
Restricted share units, granted 20,000   65,000 1,357,500   136,000   355,800              
Restricted share units, vesting period           Sep. 24, 2015   Jul. 28, 2015              
Restricted share units, vesting period 4 years                            
Restricted share units, compensation cost                     $ 1,548 $ 4,091      
Unrecognized share-based compensation cost in respect of granted restricted share units                     $ 13,612 $ 13,612      
Share based compensation weighted average period                       1 year 5 months 9 days      
Restricted Share Units [Member] | Marlin Capital Investments, LLC [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Restricted share units, granted                 2,000,000            
Restricted Share Units [Member] | Best One Inc [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Number of equity awards             960,000         960,000      
Share Based Compensation Description                       The RSUs vest annually beginning from October 13, 2015 only if certain performance goals of the Company are met. The shares underlying such RSUs will not be delivered until October 13, 2018, unless there is a change of control of the Company.      
Restricted Share Units [Member] | Best One Inc [Member] | Marlin Capital Investments, LLC [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Number of assumed equity awards outstanding of acquired entity             2,000,000       2,000,000 2,000,000      
Number of equity awards             2,000,000         2,000,000      
Restricted Share Units [Member] | Minimum [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Restricted share units, vesting period     1 year 3 years                      
Restricted Share Units [Member] | Maximum [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Restricted share units, vesting period     3 years 4 years