Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
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, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Summary of compensation expense and stock award activity        
Stock-based compensation expense (in dollars) $ 6,130 $ 5,657 $ 15,724 $ 15,719
Restricted Stock [Member]        
Summary of compensation expense and stock award activity        
Restricted stock awards vested (includes performance-based awards) (in shares) 8,610 32,369 413,016 435,292
Non-vested shares [Member]        
Summary of compensation expense and stock award activity        
Non-vested shares granted (in shares) 2,112 3,314 225,593 385,328
Performance-based non-vested shares [Member]        
Summary of compensation expense and stock award activity        
Non-vested shares granted (in shares) 0 0 56,139 94,152
Shares issued as a result of performance achievement exceeding performance targets (in shares) 0 [1] 0 [1] 24,054 0
[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.