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Curtailment of Manufacturing Facility (Details) - Curtailment of I-joist Production at Roxboro, NC Facility - USD ($) $ in Millions |  |  | 9 Months Ended
--- | --- | --- | ---
Mar. 31, 2020 | Feb. 20, 2020 | Sep. 30, 2020
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Activities, Initiation Date |  | Feb. 20, 2020 |
Restructuring and Related Activities, Completion Date | Mar. 31, 2020 |  |
Accelerated depreciation |  |  | $ 15.0
Loss on curtailment of facility |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Other closure-related costs |  |  | $ 1.7

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