STOCK-BASED COMPENSATION Deferred Compensation Arrangement (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items]
Fair value of shares withheld for tax withholding obligations	2,844,000
Director [Member]
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items]
Vesting period	1 year
Deferred Compensation Arrangement with Individual, Shares Issued	23,750	20,000	20,000