STOCKHOLDERS' EQUITY (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015		Sep. 30, 2014	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividend paid			$ 52,436		$ 45,945
Cash dividend per share (in dollars per share)	$ 0.08	$ 0.07	$ 0.24		$ 0.21
Number of shares repurchased (in shares)		1,200,000	19,000	[1]	1,500,000
Par value of common stock (in dollars per share)	$ 1		$ 1			$ 1
Weighted average stock price of shares repurchased (in dollars per share)		$ 19.41	$ 22.42		$ 19.46
Repurchase of common stock from employees		$ 100	$ 7,000		$ 6,200
Common stock reserved for issuance upon exercise of stock options (in shares)	5,000,000		5,000,000
Tax benefits from share-based payments	$ 100	$ 100	$ 1,800		$ 4,500	$ 4,700
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 34,600		$ 34,600			$ 29,400
Unrecognized compensation cost, period for recognition			4 years			3 years 8 months 12 days

[1] Charges to Retained Earnings are from purchases of the Company's Common Stock.