Income Taxes (Details 2)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reconciliation of provision for income taxes to the amount computed at the Federal statutory rate
Federal income tax at statutory rate	35.00%	35.00%	35.00%
State taxes, net of Federal benefit	4.90%	6.00%	4.10%
Goodwill impairment	4.30%
Miscellaneous	0.10%	0.50%	0.10%
Effective income tax rate, Total	44.30%	41.50%	39.20%