Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Details Narrative)

v3.5.0.2
STOCKHOLDERS' EQUITY (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Cash dividend paid     $ 43,688 $ 34,959  
Cash dividend per share (in dollars per share) $ .10 $ 0.08 $ .20 $ .16  
Number of shares repurchased (in shares) 400,000   400,000 19,000  
Par value of common stock (in dollars per share) $ 1   $ 1   $ 1
Weighted average stock price of shares repurchased (in dollars per share) $ 26.88   $ 26.61 $ 22.42  
Repurchase of common stock from employees $ 4 $ 900 $ 7,400 $ 7,000  
Common stock reserved for issuance upon exercise of stock options (in shares) 4,600   4,600    
Tax benefits from share-based payments $ 100 $ 600 $ 3,100 $ 1,700 $ 1,900
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost $ 37,100   $ 37,100   $ 31,300
Unrecognized compensation cost, period for recognition     4 years 1 month 6 days   3 years 9 months 24 days