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STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2017
STOCK-BASED COMPENSATION  
Schedule of stock-based employee compensation expense
  Three months ended  Six months ended 
  June 30,  June 30 
(in thousands) 2017  2016  2017  2016 
Pre-tax expense $3,325  $2,702  $6,012  $5,362 
After tax expense $2,112  $1,716  $3,818  $3,405 
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  886,542   13.34 
Forfeited  64,133   14.08 
Non-vested shares at June 30, 2017  2,829,465  $14.49