Business Interruption Insurance	12 Months Ended
Dec. 31, 2025
Unusual or Infrequent Items, or Both [Abstract]
Business Interruption Insurance	Note 4. Business Interruption Insurance For the year ended December 31, 2025, there were no business interruption insurance claims. For the year ended December 31, 2024, the Company received business interruption insurance payments of C$2.3 million ($1,688) and property insurance payments of C$1.1 million ($773) as a result of damage to the Celgar mill’s lime kiln equipment. For the year ended December 31, 2023, the Company received business interruption insurance payments of €15.2 million ($16,553) as a result of damage to the Rosenthal mill’s turbine in 2021. In 2023, the Company also received business interruption insurance payments of €16.3 million ($17,665) and property insurance payments of €11.2 million ($12,203) related to a fire which occurred in the woodyard of the Stendal mill in 2022. The business interruption and property insurance proceeds were recognized in “Cost of sales, excluding depreciation and amortization” in the Consolidated Statements of Operations.

Business Interruption Insurance

12 Months Ended

Dec. 31, 2025

Unusual or Infrequent Items, or Both [Abstract]

Note 4. Business Interruption Insurance

For the year ended December 31, 2025, there were no business interruption insurance claims.

For the year ended December 31, 2024, the Company received business interruption insurance payments of C$2.3 million ($1,688) and property insurance payments of C$1.1 million ($773) as a result of damage to the Celgar mill’s lime kiln equipment.

For the year ended December 31, 2023, the Company received business interruption insurance payments of €15.2
million ($16,553) as a result of damage to the Rosenthal mill’s turbine in 2021. In 2023, the Company also received
business interruption insurance payments of €16.3 million ($17,665) and property insurance payments of €11.2 million ($12,203) related to a fire which occurred in the woodyard of the Stendal mill in 2022.

The business interruption and property insurance proceeds were recognized in “Cost of sales, excluding depreciation and amortization” in the Consolidated Statements of Operations.