REVENUE RECOGNITION - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Adjustment to retained earnings from adoption of new accounting guidance	$ (230,067)		$ (247,639)
Contract with a customer, asset	31,200		32,800
Oil Production Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with a customer, asset	25,500		26,700
Natural Gas Production Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with a customer, asset	3,500		3,900
Natural Gas Liquids Production Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with a customer, asset	$ 2,200		$ 2,200
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Adjustment to retained earnings from adoption of new accounting guidance		$ (700)