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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2017
Accounting Policies [Abstract]  
Inventories [Table Text Block]
Inventories included the following (work in process is not material):
 
 
 
September 30,
2017
 
December 31,
2016
 
 
(thousands)
Finished goods and work in process
 
$
374,046

 
$
330,026

Logs
 
43,144

 
63,208

Other raw materials and supplies
 
42,674

 
40,217

 
 
$
459,864

 
$
433,451

Property and Equipment [Table Text Block]
Property and equipment consisted of the following asset classes:
 
 
 
September 30,
2017
 
December 31,
2016
 
 
(thousands)
Land
 
$
38,606

 
$
38,700

Buildings
 
139,959

 
136,087

Improvements
 
52,539

 
50,655

Mobile equipment, information technology, and office furniture
 
133,636

 
125,486

Machinery and equipment
 
635,185

 
613,060

Construction in progress
 
32,441

 
34,877

 
 
1,032,366

 
998,865

Less accumulated depreciation
 
(477,169
)
 
(430,163
)
 
 
$
555,197

 
$
568,702