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ENVIRONMENTAL AND NATURAL RESOURCE DAMAGE LIABILITIES (Tables) | 3 Months Ended
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Mar. 31, 2026
Environmental Remediation Obligations [Abstract] |
Schedule of Environmental Loss Contingencies by Site | Changes in environmental and NRD liabilities from December 31, 2025 to March 31, 2026 are shown below:
| Port Gamble, WA | Other Sites | Total
Non-current portion at December 31, 2025 | $6,089 | — |  | $6,089
Plus: Current portion | 3,181 | — |  | 3,181
Total Balance at December 31, 2025 | 9,270 | — |  | 9,270
Liabilities assumed in the merger with PotlatchDeltic | — |  | 679 | 679 |
Expenditures charged to liabilities | (176) | (33) | (209)
Decrease to liabilities (a) | (181) | — |  | (181)
Total Balance at March 31, 2026 | 8,913 | 646 | 9,559
Less: Current portion | (5,439) | (218) | (5,657)
Non-current portion at March 31, 2026 | $3,474 | $428 | $3,902
(a)The decrease in liabilities resulted from revised environmental and NRD cost estimates recognized during the three months ended March 31, 2026.

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