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SEGMENT INFORMATION (Tables)
9 Months Ended
Sep. 30, 2021
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 September 30,Nine Months Ended September 30,
(In thousands)2021202020212020
United States$429,150 $392,120 $1,213,142 $968,825 
Outside of United States27,229 16,243 80,133 56,227 
Total revenues$456,379 $408,363 $1,293,275 $1,025,052