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Accrued Expenses
12 Months Ended
Dec. 31, 2018
Payables and Accruals [Abstract]  
Accrued Expenses
(9) Accrued Expenses

 

Accrued expenses consist of the following:

 

    December 31,  
    2018     2017  
Advertising liabilities   $ 14,868     $ 27,418  
Salary (including bonus and related taxes)     19,939       18,488  
Royalties     14,533       11,409  
Due vendors (not yet invoiced)     29,790       11,228  
Retirement reserves     9,616       9,113  
Other     3,722       4,187  
    $ 92,468     $ 81,843