LONG-TERM DEBT (Details 2) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Long-Term Debt Payout Schedule
2016	$ 25,310
2017	329
2018	90,351
2019	375
2020	100,396
Thereafter	647,129
Total long-term debt obligations	863,890
Less current obligations and unamortized discount	25,943
Total long-term debt	837,947	$ 803,189
Regulated Entity Debt Obligations
Long-Term Debt Payout Schedule
2016	25,000
2018	90,000
2020	100,000
Thereafter	645,000
Total long-term debt obligations	860,000
Capital Lease Obligations
Long-Term Debt Payout Schedule
2016	310
2017	329
2018	351
2019	375
2020	396
Thereafter	2,129
Total long-term debt obligations	$ 3,890