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Senior Credit Facilities (Table)
9 Months Ended
Sep. 30, 2011
Senior Credit Facilities (Table) [Abstract] 
Financial Covenants Ratios
  Required Ratio   Actual Ratio
Maximum consolidated leverage ratio……No greater than 3.25:1   1.66:1
Minimum fixed charge coverage ratio……No less than 1.35:1   1.53:1