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Depreciation and Amortization (Tables)
3 Months Ended
Mar. 31, 2022
Depreciation, Depletion and Amortization [Abstract]  
Depreciation and Amortization Expense Excluded from Operating Expenses in its Condensed Consolidated Statements of Income and Comprehensive Income The amounts of depreciation and amortization expense excluded from the following operating expenses in its Condensed Consolidated Statements of Income and Comprehensive Income are:
Three Months Ended
March 31,
20222021
Direct advertising expenses$64,237 $56,472 
General and administrative expenses1,176 1,107 
Corporate expenses3,214 3,170 
$68,627 $60,749