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Other Expenses, Net (Tables)
3 Months Ended
Mar. 31, 2019
Other Income and Expenses [Abstract]  
Schedule of other expenses, net

   During the Three-Month
Periods Ended March 31,
 
   2019   2018 
Interest expense  $114,041   $96,015 
Interest income   (2,315)   (3,824)
Other gains       (75)
Other expenses, net  $111,726   $92,116