Segment and Product Information - Segment Reporting Information by Product Category (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Entity Wide Information Revenue From External Customer [Line Items]
Sales	$ 345,909	$ 319,702
Prefabricated Components
Entity Wide Information Revenue From External Customer [Line Items]
Sales	70,490	60,820
Windows And Doors
Entity Wide Information Revenue From External Customer [Line Items]
Sales	76,275	63,605
Lumber And Lumber Sheet Goods
Entity Wide Information Revenue From External Customer [Line Items]
Sales	115,515	116,797
Millwork
Entity Wide Information Revenue From External Customer [Line Items]
Sales	33,468	29,053
Other Building Products And Services
Entity Wide Information Revenue From External Customer [Line Items]
Sales	$ 50,161	$ 49,427