Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Details Narrative)

v3.4.0.3
STOCKHOLDERS' EQUITY (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cash dividend paid $ 21,855 $ 17,483  
Cash dividend per share (in dollars per share) $ 0.10 $ 0.08  
Number of shares repurchased (in shares) 54,000 [1] 19,000  
Par value of common stock (in dollars per share) $ 1   $ 1
Weighted average stock price of shares repurchased (in dollars per share) $ 24.77 $ 22.42  
Repurchase of common stock from employees $ 7,400 $ 6,100  
Tax benefits from share-based payments 3,000 $ 2,300 $ 1,900
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost $ 40,900   $ 31,300
Unrecognized compensation cost, period for recognition 4 years 3 months 18 days   3 years 9 months 24 days
[1] Charges to Retained Earnings are from purchases of the Company's Common Stock.