Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
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, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Summary of compensation expense and stock award activity        
Stock-based compensation expense (in dollars) $ 4,113 $ 3,729 $ 9,898 $ 11,042
Stock options exercised (in shares) [1] 0 0 0 14,400
Restricted Stock [Member]        
Summary of compensation expense and stock award activity        
Restricted stock awards vested (includes performance-based awards) (in shares) 5,780 6,940 295,544 341,490
Non-vested shares [Member]        
Summary of compensation expense and stock award activity        
Non-vested shares granted (in shares) 14,075 3,500 430,575 497,365
Performance-based non-vested shares [Member]        
Summary of compensation expense and stock award activity        
Non-vested shares granted (in shares) 0 0 154,120 66,698
[1] As of December 31, 2016, we have no remaining unexercised stock options.