Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventory

Inventories are valued at the lower of cost or net realizable value. Inventory costs include materials, labor and operating overhead. The LIFO (last-in, first-out) method is used for a minor portion of the our log inventories with the remaining inventories valued at FIFO (first-in, first-out) or average cost. Inventory consists of the following:



	December 31,
Dollar amounts in millions	2017		2016
Logs	$	60.3	$	54.6
Other raw materials	20.8		23.0
Semi finished inventory	24.3		16.8
Finished products	153.7		140.2
Total	$	259.1	$	234.6

Depreciation expense [Table Text Block]

Depreciation expense can be attributed to Cost of sales and selling and administrative as noted below:



Dollar amounts in millions	Years ended December 31,
Dollar amounts in millions	2017		2016		2015
Cost of sales	$	120.1	$	109.6	$	98.9
Selling and administrative	3.2		3.2		3.0
Total depreciation and amortization	$	123.3	$	112.8	$	101.9

Property, Plant and Equipment [Table Text Block]

Plant, property and equipment, net consists of the following:



Dollar amounts in millions	December 31,
Dollar amounts in millions	2017			2016
Property, plant and equipment, at cost:
Land, land improvements and logging roads, net of road amortization	$	162.7		$	154.4
Buildings	347.5			331.2
Machinery and equipment	1,977.4			1,934.1
Construction in progress	98.5			48.7
	2,586.1			2,468.4
Accumulated depreciation	(1,660.0		)	(1,577.0		)
Property, plant and equipment, net	$	926.1		$	891.4