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Accrued Expenses
6 Months Ended
Jun. 30, 2017
Accounts Payable and Accrued Liabilities [Abstract]  
Accrued Expenses
6. Accrued Expenses:

 

Accrued expenses include approximately $14.7 million and $27.2 million in advertising liabilities as of June 30, 2017 and December 31, 2016, respectively.