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Debt Financial Covenants and Interest Rate - Narrative (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2016
Base Rate | Notes Payable to Banks    
Debt Instrument [Line Items]    
Debt Instrument, Basis Spread on Variable Rate 3.00%  
Revolving Credit Facility    
Debt Instrument [Line Items]    
Line Of Credit Facility Financial Covenants Combined Leverage Ratio 5.00  
Revolving Credit Facility | Maximum    
Debt Instrument [Line Items]    
Line Of Credit Facility Financial Covenants Combined Leverage Ratio 5.00  
Revolving Credit Facility | Minimum    
Debt Instrument [Line Items]    
Line Of Credit Facility Financial Covenants Combined Interest Charge Coverage Ratio 2.75  
Scenario, Forecast | Revolving Credit Facility    
Debt Instrument [Line Items]    
Line Of Credit Facility Financial Covenants Combined Leverage Ratio   4.50
CrossAmerica [Member] | Revolving Credit Facility    
Debt Instrument [Line Items]    
Line of Credit Facility, Interest Rate at Period End 3.52%