Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

The major types of inventories are as follows (work in process is not material):

Dollar amounts in millions	March 31, 2018		December 31, 2017
Logs	$	88.1	$	60.3
Other raw materials	24.0		20.8
Semi-finished inventory	22.1		24.3
Finished products	195.2		153.7
Total	$	329.4	$	259.1