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Segment Sales to External Customers by Product Line (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Segment Reporting [Abstract]      
Number of Reportable Segments | segment 2    
Sales to external customers [Line Items]      
Sales $ 7,926,111 $ 5,474,838 $ 4,643,404
Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1] $ 752,000 $ 522,800 $ 505,700
Intersegment EWP Sales Volumes As Percentage to Total EWP Sales Volumes 78.00% 80.00% 77.00%
Building Materials Distribution [Member]      
Sales to external customers [Line Items]      
Sales $ 7,174,100 $ 4,952,000 $ 4,137,700
Laminated Veneer Lumber [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1],[2] 4,300 18,400 39,500
I-joists [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1],[2] (6,800) 7,300 22,100
Other Engineered Wood Products [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1],[2] 43,000 23,900 26,800
Plywood and veneer [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1] 539,300 332,700 255,100
Lumber [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1] 81,800 54,700 52,500
Byproducts [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1] 71,200 68,600 75,100
Other [Member] | Wood Products [Member]      
Sales to external customers [Line Items]      
Sales [1] 19,300 17,100 34,700
Commodity [Member] | Building Materials Distribution [Member]      
Sales to external customers [Line Items]      
Sales 3,704,700 2,309,900 1,725,400
General line [Member] | Building Materials Distribution [Member]      
Sales to external customers [Line Items]      
Sales 2,164,800 1,762,300 1,580,700
Engineered wood products [Member] | Building Materials Distribution [Member]      
Sales to external customers [Line Items]      
Sales 1,304,600 879,900 831,600
Non-US [Member]      
Sales to external customers [Line Items]      
Sales $ 128,000 $ 71,000 $ 76,000
Customer One [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]      
Sales to external customers [Line Items]      
Concentration Risk, Percentage 12.00% 11.00%  
[1] Amounts represent sales to external customers. Sales are calculated after intersegment sales eliminations to our BMD segment.
[2] Sales of EWP to external customers are net of the cost of all EWP rebates and sales allowances provided at various stages of the supply chain (including distributors, dealers, and homebuilders). For the years ended December 31, 2021, 2020, and 2019, approximately 78%, 80%, and 77%, respectively, of Wood Products' EWP sales volumes were to our BMD segment.