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STOCK-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2017
STOCK-BASED COMPENSATION  
Schedule of stock-based employee compensation expense
    Three months ended  
    March 31,  
(in thousands)   2017     2016  
Pre-tax expense   $ 2,687     $ 2,660  
After tax expense   $ 1,706     $ 1,689  
Schedule of summary of changes in non-vested restricted shares
    Shares     Weighted Average 
Grant-Date Fair 
Value
 
Non-vested shares at December 31, 2016     3,217,075     $ 12.91  
Granted     563,065       21.66  
Vested     (800,225 )     13.22  
Forfeited     (13,500 )     13.50  
Non-vested shares at March 31, 2017     2,966,415     $ 14.49