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Summary of Significant Accounting Policies Level 3 Summary of Significant Accounting Policies (Tables)
6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Summary of Significant Accounting Policies [Abstract]    
Inventories [Table Text Block]
Inventories included the following (work in process was not material):
 
 
 
June 30,
2013
 
December 31,
2012
 
 
(thousands)
Finished goods and work in process
 
$
316,605

 
$
267,115

Logs
 
29,517

 
37,273

Other raw materials and supplies
 
22,228

 
21,418

 
 
$
368,350

 
$
325,806

Inventories include the following (work in process is not material):
 
 
 
December 31,
2012
 
December 31,
2011
 
 
(thousands)
Finished goods and work in process
 
$
267,115

 
$
223,605

Logs
 
37,273

 
41,243

Other raw materials and supplies
 
21,418

 
19,130

 
 
$
325,806

 
$
283,978

Property and Equipment [Table Text Block]
Property and equipment consisted of the following asset classes:
 
 
 
June 30,
2013
 
December 31,
2012
 
 
(thousands)
Land
 
$
34,992

 
$
35,662

Buildings
 
88,818

 
88,129

Improvements
 
34,731

 
34,526

Office equipment and vehicles
 
85,954

 
80,857

Machinery and equipment
 
271,166

 
264,084

Construction in progress
 
9,928

 
11,176

 
 
525,589

 
514,434

Less accumulated depreciation
 
(264,280
)
 
(248,510
)
 
 
$
261,309

 
$
265,924

Property and equipment consisted of the following asset classes with the following general range of estimated useful lives:
 
 
 
December 31,
2012
 
December 31,
2011
 
General Range of Estimated Useful Lives in Years
 
 
(thousands)
 
 
 
 
Land
 
$
35,662

 
$
35,469

 
 
 
 
Buildings
 
88,129

 
84,510

 
20

-
40
Improvements
 
34,526

 
32,645

 
10

-
15
Office equipment and vehicles
 
80,857

 
74,349

 
3

-
7
Machinery and equipment
 
264,084

 
253,933

 
7

-
12
Construction in progress
 
11,176

 
5,812

 
 
 
 
 
 
514,434

 
486,718

 
 
 
 
Less accumulated depreciation
 
(248,510
)
 
(220,262
)
 
 
 
 
 
 
$
265,924

 
$
266,456