DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Settlements of Collateralized Indebtedness (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Settlements of Collateralized Indebtedness [Abstract]
Number of shares (in shares)	10,738,809
Collateralized indebtedness settled	$ (438,758)
Derivative contracts settled	(69,088)
Repayment of collateralized indebtedness and related derivative contracts	(507,846)	$ (342,105)
Proceeds from new monetization contracts	617,152	$ 416,621
Net cash receipt	$ 109,306