Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Summary of stock-based compensation expense) (Details)

v3.21.2
STOCK-BASED COMPENSATION (Summary of stock-based compensation expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense $ 12,830 $ 38,538 $ 52,847 $ 50,270
Selling, General and Administrative Expenses [Member]        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense 3,736 30,249 31,810 35,212
Corporate Expense [Member]        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense $ 9,094 $ 8,289 $ 21,037 $ 15,058