ENTERGY TRANSACTION (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Terminated Entergy Transaction
Entergy Transaction expenses	[1]	$ 0	$ 0	$ 5,614
External Legal, Advisory and Financial Services Fees
Terminated Entergy Transaction
Entergy Transaction related expenses			400	43,100
Internal Labor and Associated Costs
Terminated Entergy Transaction
Entergy Transaction related expenses			$ 700	$ 7,800

[1] See Note 17 for discussion of the Entergy Transaction.