COMMITMENTS (Future Minimum Payments) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($) lease
Commitments
Remaining 2018	$ 6,996
2019	4,279
2020	3,982
2021	1,877
2022	1,539
Thereafter	1,507
Commitments, total	20,180
Total
Remaining 2018	15,289
2019	14,615
2020	13,861
2021	11,460
2022	11,062
Thereafter	159,378
Total	225,665
Pension contribution requirements remaining in fiscal year	$ 2,400
Matariki Crown Forest Licenses
Total
Future minimum payments	20 years
Number of leases under termination notice \| lease	3
Number of leases expiring in 2062 \| lease	2
Operating Leases
Leases
Remaining 2018	$ 878
2019	947
2020	755
2021	636
2022	629
Thereafter	703
Operating leases, total	4,548
Timberland Leases
Leases
Remaining 2018	7,415
2019	9,389
2020	9,124
2021	8,947
2022	8,894
Thereafter	157,168
Operating leases, total	$ 200,937
Timberland Leases \| Matariki Crown Forest Licenses
Total
Operating lease, termination notice	35 years
Operating lease, renewal term	1 year

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