Self-Insurance (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
General Liability Insurance Deductible	$ 7,500,000
Aggregate General Liability Deductible	15,000,000
Self Insurance Reserve	1,200,000	1,000,000
General Insurance Expense	4,000,000	3,100,000
Self-Insured and General Liability Claims Expense			2,000,000
Charges Related to Defective Drywall			600,000
Settlement Received Related to Defective Drywall			2,400,000
Employee Health Care [Member]
Self-Insurance Limit	250,000
Employee Health Care Limit / Stop Loss coverage [Member]
Self-Insurance Limit	250,000
Workers Compensation Deductible [Member]
Workers Compensation	250,000
Maximum Incurred Losses not to Exceed - Ohio [Member]
Workers Compensation	$ 500,000