Quarterly report pursuant to Section 13 or 15(d)

Debt (Revolving Credit Agreement) (Details)

v3.5.0.2
Debt (Revolving Credit Agreement) (Details) - Revolving credit agreement
9 Months Ended
Mar. 24, 2016
USD ($)
Sep. 30, 2016
USD ($)
Mar. 23, 2016
USD ($)
Dec. 31, 2015
USD ($)
Debt Instrument [Line Items]        
Maximum borrowing capacity $ 1,000,000,000   $ 500,000,000  
Revolving credit agreement   $ 300,000,000   $ 225,000,000
Weighted average interest rate (percent)   4.25%    
Ratio of debt to EBITDA, current year   3.5    
Ratio of debt to EBITDA, after current year   3.0    
Line of Credit        
Debt Instrument [Line Items]        
Termination of revolving credit facility $ 285,000,000