Commitments and Contingencies (Details 2)	12 Months Ended	1 Months Ended
	Dec. 31, 2013 lawsuit	Feb. 29, 2012 Nishimura case lawsuit	Jul. 20, 2011 Nishimura case lawsuit	Dec. 31, 2013 Simpson Strong-Tie San Bernardino County agreement	Dec. 31, 2013 Simpson Strong-Tie San Bernardino County Tool and die craftsmen and maintenance workers agreement	Dec. 31, 2013 Simpson Strong-Tie Stockton agreement
Commitments and Contingencies
Percentage of employees represented by labor unions	14.00%
Collective bargaining arrangements
Collective bargaining agreements, number				2	1	2
Litigation
Number of lawsuits filed against the entity	4		5
Number of lawsuits dismissed		3