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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

Changes in the carrying amounts of goodwill and intangible assets allocated to each segment were as follows:


			Pulp and Paperboard												Total
			Goodwill						Intangibles
Balance as of December 31, 2021			$	35.1					$	10.8					$	45.9
Amortization			—						(2.2)						(2.2)
Balance as of December 31, 2022			35.1						8.6						43.6
Amortization			—						(2.1)						(2.1)
Balance as of December 31, 2023			$	35.1					$	6.4					$	41.5

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

As of December 31, 2023, estimated future amortization expense related to intangible assets is as follows:


			Amount
2024			$	2.1
2025			2.1
2026			2.1
2027			—
2028			—
Total			$	6.4