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Segment Information Segment Sales to External Customers by Product Line (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 USD ($) segment | Mar. 31, 2021 USD ($)
Segment Reporting [Abstract] |  |  |
Number of Reportable Segments | segment |  | 2 |
Revenue from External Customer [Line Items] |  |  |
Sales |  | $ 2,326,282 | $ 1,821,316
Wood Products [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales |  | $ 214,500 | $ 186,500
Intersegment EWP Sales Volumes As Percentage to Total EWP Sales Volumes |  | 79.00% | 78.00%
Wood Products [Member] | Laminated Veneer Lumber [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1],[2] | $ 1,700 | $ 6,000
Wood Products [Member] | I-joists [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1],[2] | (2,200) | 4,800
Wood Products [Member] | Other engineered wood products [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1],[2] | 11,800 | 10,600
Wood Products [Member] | Plywood and veneer [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1] | 161,200 | 122,900
Wood Products [Member] | Lumber [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1] | 17,700 | 18,900
Wood Products [Member] | Byproducts [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1] | 19,100 | 17,600
Wood Products [Member] | Other [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales | [1] | 5,200 | 5,800
Building Materials Distribution [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales |  | 2,111,800 | 1,634,800
Building Materials Distribution [Member] | Commodity product line [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales |  | 1,102,000 | 906,200
Building Materials Distribution [Member] | General line [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales |  | 615,100 | 472,700
Building Materials Distribution [Member] | Engineered wood products [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Sales |  | $ 394,700 | $ 255,900
[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 three months ended March 31, 2022 and 2021, approximately 79% and 78%, respectively, 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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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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