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SEGMENT INFORMATION (Tables)
 6 Months Ended
Jun. 30, 2020
Segment Reporting [Abstract]  
Revenue from External Customers by Geographic Areas
The following table summarizes total revenue from customers by geographic region. Product revenues are attributed to countries based on ship-to location.
Three Months Ended June 30,Six Months Ended June 30,
(In thousands)2020201920202019
United States$249,850  $199,870  $576,709  $361,913  
Outside of United States19,018  —  39,980  —  
Total revenues$268,868  $199,870  $616,689  $361,913