Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Future Commitments) (Details)

v3.19.3
COMMITMENTS AND CONTINGENCIES (Future Commitments) (Details)
MMBTU in Thousands, $ in Thousands
Sep. 30, 2019
USD ($)
MMBTU
Commitments [Line Items]  
Remaining 2019 (in mmbtu) | MMBTU 424
2020 (in mmbtu) | MMBTU 314
2021 (in mmbtu) | MMBTU 192
2022 (in mmbtu) | MMBTU 70
2023 (in mmbtu) | MMBTU 17
Thereafter (in mmbtu) | MMBTU 0
Total (in mmbtu) | MMBTU 1,017
2020 $ 24,000
2021 24,000
Total 54,000
Transportation commitment  
Commitments [Line Items]  
Remaining 2019 65,763
2020 287,627
2021 286,665
2022 286,665
2023 282,981
Thereafter 2,410,866
Total $ 3,620,567