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Debt (Details 2)
Sep. 30, 2013
Senior Credit Facility | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.25
Consolidated Senior Secured Leverage Ratio, Denominator 1
Senior Credit Facility | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 2.50
Consolidated Interest Coverage Ratio, Denominator 1
Senior Credit Facility | Actual
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 1.35
Consolidated Senior Secured Leverage Ratio, Denominator 1
Consolidated Interest Coverage Ratio, Numerator 3.51
Consolidated Interest Coverage Ratio, Denominator 1
Fiscal Quarter Ending September 30, 2013 [Member] | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.25
Consolidated Senior Secured Leverage Ratio, Denominator 1.00
Fiscal Quarter Ending September 30, 2013 [Member] | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 2.50
Consolidated Interest Coverage Ratio, Denominator 1.00
Fiscal Quarter Ending December 31, 2013 [Member] | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.25
Consolidated Senior Secured Leverage Ratio, Denominator 1.00
Fiscal Quarter Ending December 31, 2013 [Member] | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 2.50
Consolidated Interest Coverage Ratio, Denominator 1.00
Fiscal Quarter Ending March 31, 2014 [Member] | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.25
Consolidated Senior Secured Leverage Ratio, Denominator 1.00
Fiscal Quarter Ending March 31, 2014 [Member] | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 2.75
Consolidated Interest Coverage Ratio, Denominator 1.00
Fiscal Quarter Ending June 30, 2014 [Member] | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.25
Consolidated Senior Secured Leverage Ratio, Denominator 1.00
Fiscal Quarter Ending June 30, 2014 [Member] | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 2.75
Consolidated Interest Coverage Ratio, Denominator 1.00
Fiscal Quarter Ending September 30, 2014 [Member] | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.25
Consolidated Senior Secured Leverage Ratio, Denominator 1.00
Fiscal Quarter Ending September 30, 2014 [Member] | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 2.75
Consolidated Interest Coverage Ratio, Denominator 1.00
Fiscal Quarter Ending December 31, 2014 and Thereafter [Member] | Required | Less than
  
Financial Covenants  
Consolidated Senior Secured Leverage Ratio, Numerator 3.00
Consolidated Senior Secured Leverage Ratio, Denominator 1.00
Fiscal Quarter Ending December 31, 2014 and Thereafter [Member] | Required | Greater than
  
Financial Covenants  
Consolidated Interest Coverage Ratio, Numerator 3.00
Consolidated Interest Coverage Ratio, Denominator 1.00