COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of commitments

The commitments are noted in the table below.

	Facility Leases		System Lease		Water Supply Contracts*		Capital Lease Obligations
2018	$	950	$	422	$	30,708	$	1,053
2019	620		—		30,708		1,284
2020	549		—		30,709		977
2021	341		—		30,709		977
2022	302		—		30,710		977
Thereafter	3,078		—		536,826		3,581