Segment Information (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net sales and long-lived assets by geographical area
Net sales	$ 347,642	$ 283,668
Wood construction products
Net sales and long-lived assets by geographical area
Net sales	301,578	242,520
Concrete construction products
Net sales and long-lived assets by geographical area
Net sales	45,523	41,012
Other
Net sales and long-lived assets by geographical area
Net sales	541	136
North America
Net sales and long-lived assets by geographical area
Net sales	$ 300,564	$ 249,050