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Summary of Significant Accounting Policies (Details 3) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 934,065 $ 771,146
Less accumulated depreciation (381,283) (368,480)
Property and equipment, net 552,782 402,666
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 38,696 36,876
Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 120,282 106,269
Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 48,076 46,205
Mobile equipment, information technology, and office furniture [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 114,826 109,702
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 572,356 437,433
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 39,829 $ 34,661
Georgia-Pacific Engineered Lumber Production Facilities [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment acquired $ 149,245