Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details)

v3.21.2
STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Summary of compensation expense and stock award activity        
Stock-based compensation expense (in dollars) $ 5,845 $ 6,130 $ 14,435 $ 15,724
Restricted Stock [Member]        
Summary of compensation expense and stock award activity        
Restricted stock awards vested (includes performance-based awards) (in shares) 3,615 8,610 438,344 413,016
Non-vested shares [Member]        
Summary of compensation expense and stock award activity        
Non-vested shares granted (in shares) 4,114 2,112 225,666 225,593
Performance-based non-vested shares [Member]        
Summary of compensation expense and stock award activity        
Non-vested shares granted (in shares) 0 0 46,593 56,139
Shares issued as a result of performance achievement exceeding performance targets (in shares) [1] 0 0 37,425 24,054
[1] Performance-based shares that vested and were issued as a result of performance achievement exceeding the originally established targeted number of shares related to respective performance metrics.