Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Summary of compensation expense and stock award activity    
Stock-based compensation expense (in dollars) $ 6,437 $ 5,861
Restricted Stock [Member]    
Summary of compensation expense and stock award activity    
Restricted stock awards vested (includes performance-based awards) (in shares) 398,346 400,323
Non-vested shares [Member]    
Summary of compensation expense and stock award activity    
Non-vested shares granted (in shares) 223,481 377,514
Performance-based non-vested shares [Member]    
Summary of compensation expense and stock award activity    
Non-vested shares granted (in shares) 56,139 94,152
Shares issued as a result of performance achievement exceeding performance targets (in shares) [1] 24,054 21,039
[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.