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Other Current Assets (Tables)
12 Months Ended
Dec. 31, 2019
Other Assets [Abstract]  
Other Current Assets
Other current assets consist of the following at December 31, 2019 and 2018 (in thousands):
 
December 31,
 
2019
 
2018
Income tax receivables
$
72,246

 
$
40,116

Prepaid expenses
83,637

 
43,172

Other
6,930

 
1,502

Total
$
162,813

 
$
84,790