Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Summary of compensation expense and stock award activity    
Stock-based compensation expense (in dollars) $ 3,295 $ 4,758
Stock options exercised (in shares) [1] 0 11,200
Restricted Stock [Member]    
Summary of compensation expense and stock award activity    
Restricted stock awards vested (includes performance-based awards) (in shares) 283,574 305,085
Non-vested shares [Member]    
Summary of compensation expense and stock award activity    
Non-vested shares granted (in shares) 416,500 493,865
Performance-based non-vested shares [Member]    
Summary of compensation expense and stock award activity    
Non-vested shares granted (in shares) 154,120 66,698
[1] As of December 31, 2016, we have no remaining unexercised stock options.