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STOCK-BASED COMPENSATION
6 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]  
STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION
The following table summarizes stock-based compensation expenses included in operating costs and expenses on our condensed consolidated statements of operations, and stock-based compensation charges included in additional paid-in capital on our condensed consolidated statements of stockholders’ deficit:
 Three Months Ended June 30,Six Months Ended June 30,
(In thousands)2024202320242023
Research and development$48,115 $32,801 $67,330 $49,033 
Selling, general and administrative41,173 43,001 67,305 66,716 
Total stock-based compensation expense
89,288 75,802 134,635 115,749 
Capitalized stock-based compensation costs
808 1,188 1,616 2,377 
Total stock-based compensation charges
$90,096 $76,990 $136,251 $118,126