Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Details Narrative)

v3.8.0.1
STOCKHOLDERS' EQUITY (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Cash dividend paid     $ 75,182 $ 65,506  
Cash dividend per share (in dollars per share) $ 0.115 $ 0.1 $ 0.345 $ .30  
Number of shares repurchased (in shares) 0 4,000 0 8,000  
Par value of common stock (in dollars per share) $ 1   $ 1   $ 1
Weighted average stock price of shares repurchased (in dollars per share)   $ 27.77   $ 27.19  
Repurchase of common stock from employees $ 5,000 $ 9,000 $ 8,200 $ 8,300  
Common stock reserved for issuance upon exercise of stock options (in shares) 4,300   4,300    
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Tax benefits from share-based payments $ 4,000   $ 5,000    
Unrecognized compensation cost $ 35,000   $ 35,000   $ 29,900
Unrecognized compensation cost, period for recognition     3 years 9 months 18 days   4 years