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Segment Information Segment Sales to External Customers by Product Line (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) segment | Sep. 30, 2021 USD ($)
Segment Reporting [Abstract] |  |  |  |  |
Number of Reportable Segments | segment |  |  |  | 2 |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales |  | $ 2,154,647 | $ 1,879,451 | $ 6,759,001 | $ 6,143,928
Wood Products [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales |  | 197,800 | 158,300 | $ 559,200 | $ 615,300
Intersegment EWP Sales Volumes As Percentage to Total EWP Sales Volumes |  |  |  | 78.00% | 78.00%
Wood Products [Member] | Laminated Veneer Lumber [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1],[2] | 12,300 | (5,100) | $ 4,500 | $ 4,600
Wood Products [Member] | I-joists [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1],[2] | 5,700 | (9,300) | (9,000) | (1,400)
Wood Products [Member] | Other engineered wood products [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1],[2] | 10,300 | 9,600 | 35,200 | 32,800
Wood Products [Member] | Plywood and veneer [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1] | 115,400 | 119,200 | 388,800 | 443,200
Wood Products [Member] | Lumber [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1] | 21,700 | 21,300 | 60,200 | 65,900
Wood Products [Member] | Byproducts [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1] | 23,900 | 17,700 | 62,300 | 54,300
Wood Products [Member] | Other [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales | [1] | 8,400 | 4,900 | 17,100 | 15,800
Building Materials Distribution [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales |  | 1,956,800 | 1,721,100 | 6,199,800 | 5,528,600
Building Materials Distribution [Member] | Commodity product line [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales |  | 775,000 | 770,900 | 2,833,100 | 2,985,300
Building Materials Distribution [Member] | General line [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales |  | 691,000 | 580,800 | 2,006,800 | 1,620,200
Building Materials Distribution [Member] | Engineered wood products [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Sales |  | $ 490,700 | $ 369,500 | $ 1,359,900 | $ 923,100
[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 both the nine months ended September 30, 2022 and 2021, approximately 78% of Wood Products' EWP sales volumes were to our BMD segment.

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- Definition Intersegment Engineered Wood Products (EWP) Sales Volumes As Percentage to Total EWP Sales Volumes + References No definition available. + Details
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