Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

Employee Benefit Plans [Abstract]

Summary of Company's participation in multi-employer pension plans

Legal Name of Plan	EIN—Plan Number	Pension Protection Act Zone Status	Financial Improvement Plan	Surcharge Imposed	Expiration Date of Collective- Bargaining Agreement	12/31/2012 Company Participants
Western Conference of Teamsters Pension Plan	91-6145047 - 001	Funded > 80%	No	No	3/31/2013 to	73
					4/30/2015
Southern California Lumber Industry Retirement Fund	95-6035266 - 001	Funded > 80%	No	No	6/30/2014	10
Central States, Southeast and Southwest Areas Pension Plan	36-6044243 - 001	Funded < 65%	Implemented	Yes	3/31/2013	3