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Segment Information (Details 2) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Net sales and long-lived assets by geographical area    
Net sales $ 283,668 $ 259,244
Wood construction products    
Net sales and long-lived assets by geographical area    
Net sales 242,520 217,613
Concrete construction products    
Net sales and long-lived assets by geographical area    
Net sales 41,012 41,577
Other    
Net sales and long-lived assets by geographical area    
Net sales 136 54
North America    
Net sales and long-lived assets by geographical area    
Net sales $ 249,050 $ 221,431