Segment Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net sales and long-lived assets by geographical area
Net sales	$ 207,893	$ 195,348	$ 376,198	$ 349,628
Wood Construction Products
Net sales and long-lived assets by geographical area
Net sales	176,363	165,865	321,042	298,660
Concrete Construction Products
Net sales and long-lived assets by geographical area
Net sales	31,493	29,414	55,031	50,834
Other
Net sales and long-lived assets by geographical area
Net sales	$ 37	$ 69	$ 125	$ 134