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 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Stock-based compensation expenses:        
Total stock-based compensation expense $ 27,528 $ 38,608 $ 53,964 $ 68,226
Cost of revenue—Other        
Stock-based compensation expenses:        
Total stock-based compensation expense 800 814 1,542 1,629
Cost of revenue—Ticketing service        
Stock-based compensation expenses:        
Total stock-based compensation expense 0 34 0 63
Product development        
Stock-based compensation expenses:        
Total stock-based compensation expense 8,028 9,422 14,445 17,337
Sales and marketing        
Stock-based compensation expenses:        
Total stock-based compensation expense 11,092 15,102 22,909 28,598
General and administrative        
Stock-based compensation expenses:        
Total stock-based compensation expense $ 7,608 $ 13,236 $ 15,068 $ 20,599