Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation Plans and Awards - Schedule of stock-based compensation expenses related to all employee and non-employee stock-based awards (Details)

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Stock-based Compensation Plans and Awards - Schedule of stock-based compensation expenses related to all employee and non-employee stock-based awards (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Stock-based compensation expenses:    
Total stock-based compensation expense $ 38,655 $ 23,195
Cost of revenue - Other    
Stock-based compensation expenses:    
Total stock-based compensation expense 1,477 1,207
Cost of revenue - Ticketing service    
Stock-based compensation expenses:    
Total stock-based compensation expense 60 0
Product development    
Stock-based compensation expenses:    
Total stock-based compensation expense 8,501 4,605
Sales and marketing    
Stock-based compensation expenses:    
Total stock-based compensation expense 13,613 11,344
General and administrative    
Stock-based compensation expenses:    
Total stock-based compensation expense $ 15,004 $ 6,039