EQUITY TRANSACTIONS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Not Settled, Amount	$ 0	$ 863	$ 0
Treasury Stock, Shares, Acquired	3,946	4,662	4,266
Treasury Stock Acquired, Average Cost Per Share	$ 7.27	$ 8.38	$ 7.61
Treasury Stock, Value, Acquired, Cost Method	$ 28,709	$ 39,075	$ 32,455
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 0	47,629	50,000
Stock Repurchase Plan IV [Domain]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount				$ 50,000
Stock Repurchase Plan V [Domain]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 50,000
Stock Repurchase Plan VI [Domain]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount		$ 50,000