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v3.3.1.900

Segment sales to external customers by product line (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Sep. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Mar. 31, 2014 USD ($) | Dec. 31, 2015 USD ($) segment | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) Number2
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of Reportable Segments | segment |  |  |  |  |  |  |  |  | 3 |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers | $ 876,500 | $ 991,600 | $ 955,400 | $ 809,900 | $ 862,000 | $ 983,300 | $ 961,200 | $ 767,200 | $ 3,633,415 | $ 3,573,732 | $ 3,273,496
Foreign unaffiliated customers [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 84,900 | 76,200 | 87,200
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | (540,000) | (529,900) | $ (460,200)
Wood Products and Building Materials Distribution [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | One Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Concentration Risk Number of Customers | Number2 |  |  |  |  |  |  |  |  |  |  | 1
Concentration risk, sales |  |  |  |  |  |  |  |  |  |  | $ 350,900
Concentration of credit risk |  |  |  |  |  |  |  |  |  |  | 10.00%
Wood Products [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 742,300 | 787,200 | $ 674,000
Wood Products [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | $ (539,800) | (529,800) | (460,100)
Wood Products [Member] | Intersegment Eliminations [Member] | Building Materials Distribution [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales as a percentage to total sales (as a percent) |  |  |  |  |  |  |  |  | 42.00% |  |
Wood Products [Member] | Plywood and veneer [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | $ 385,500 | 413,600 | 367,800
Wood Products [Member] | Engineered wood products [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 127,200 | 125,900 | 104,400
Wood Products [Member] | Lumber [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 96,500 | 113,700 | 97,300
Wood Products [Member] | Byproducts [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 62,000 | 56,100 | 42,500
Wood Products [Member] | Particleboard [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 51,600 | 52,300 | 40,200
Wood Products [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 19,500 | 25,700 | 21,700
Building Materials Distribution [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 2,891,100 | 2,786,500 | 2,599,500
Building Materials Distribution [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | (200) | (100) | (100)
Building Materials Distribution [Member] | Commodity [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 1,343,400 | 1,376,100 | 1,333,200
Building Materials Distribution [Member] | General line [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | 1,037,800 | 937,300 | 857,900
Building Materials Distribution [Member] | Engineered wood products [Member] |  |  |  |  |  |  |  |  |  |  |
Sales to external customers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customers |  |  |  |  |  |  |  |  | $ 509,900 | $ 473,100 | $ 408,400

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