LEASES - Narrative (Details) a in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) a lease	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Property, plant and equipment, net | $	$ 30,401	$ 22,251
Accumulated depreciation | $	$ 12,238	$ 9,662
Crown Forest Licenses
Lessee, Lease, Description [Line Items]
Operating leases, renewal term	1 year
Assets Leased to Others
Lessee, Lease, Description [Line Items]
Property, plant and equipment, net | $	$ 3,500
Accumulated depreciation | $	$ 200
Minimum | Timberland Leases | Crown Forest Licenses
Lessee, Lease, Description [Line Items]
Lease termination period	35 years
Minimum | Timberland Leases | Forestry Right
Lessee, Lease, Description [Line Items]
Lease termination period	35 years
Maximum | Timberland Leases | Forestry Right
Lessee, Lease, Description [Line Items]
Lease termination period	45 years
United States | Minimum | Timberland Leases
Lessee, Lease, Description [Line Items]
Contract terms, in years	30 years
United States | Maximum | Timberland Leases
Lessee, Lease, Description [Line Items]
Contract terms, in years	65 years
New Zealand | Crown Forest Licenses
Lessee, Lease, Description [Line Items]
Number of leases under termination notice | lease	2
Leases under termination notice, net plantable acres	8
Leases under termination notice, gross acres	9
New Zealand | Forestry Right
Lessee, Lease, Description [Line Items]
Number of leases under termination notice | lease	2
Leases under termination notice, net plantable acres	8
Leases under termination notice, gross acres	32
New Zealand | Fixed-Term Crown Forest Licenses
Lessee, Lease, Description [Line Items]
Number of leases under termination notice | lease	2
Leases under termination notice, net plantable acres	2
Leases under termination notice, gross acres	3
New Zealand | Minimum | Timberland Leases
Lessee, Lease, Description [Line Items]
Contract terms, in years	30 years
New Zealand | Maximum | Timberland Leases
Lessee, Lease, Description [Line Items]
Contract terms, in years	99 years