Long-Term Debt (Details 1)	6 Months Ended
	Jun. 30, 2012
Financial covenants include required specified ratios
Required consolidated liquidity ratio	1.05
Required consolidated fixed charge coverage ratio	1.20
Required Consolidated Total Lease Adjusted Leverage Ratio	5.50
Actual consolidated liquidity ratio	1.16
Actual consolidated fixed charge coverage ratio	1.56
Actual consolidated lease adjusted leverage ratio	3.88