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Long-Term Debt - Additional Information (Details) - USD ($)
6 Months Ended
Jun. 22, 2016
Dec. 19, 2013
Jun. 30, 2016
Dec. 31, 2015
Jun. 05, 2014
Aug. 31, 2013
Jan. 12, 2012
Debt Instrument [Line Items]              
Weighted average interest rate     1.45%        
Forward Starting Interest Rate Swap Agreement              
Debt Instrument [Line Items]              
Interest rate swap agreements, notional amount         $ 150,000,000   $ 150,000,000.0
Interest rate on notional value         2.56%   1.415%
4.375% Senior Notes, due 2023              
Debt Instrument [Line Items]              
Deferred financing cost           $ 2,600,000  
Long-term debt     $ 248,182,000 $ 248,053,000   $ 250,000,000  
Senior notes coupon rate           99.879%  
Stated interest percentage     4.375% 4.375%   4.375%  
Revolving Credit Facility              
Debt Instrument [Line Items]              
Long-term debt     $ 495,819,000 $ 443,458,000      
2016 Refinancing Credit Agreement              
Debt Instrument [Line Items]              
Deferred financing cost $ 2,900,000            
Minimum interest expense coverage ratio     3.0        
Maximum debt to cash flow ratio     3.25        
2016 Refinancing Credit Agreement | Federal Funds Effective Rate              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.50%        
2016 Refinancing Credit Agreement | LIBOR Rate              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     1.00%        
2016 Refinancing Credit Agreement | Base Rate              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.00%        
2016 Refinancing Credit Agreement | Base Rate | Minimum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.00%        
2016 Refinancing Credit Agreement | Base Rate | Maximum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.75%        
2016 Refinancing Credit Agreement | Alternative Rate              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     1.00%        
2016 Refinancing Credit Agreement | Alternative Rate | Minimum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.75%        
2016 Refinancing Credit Agreement | Alternative Rate | Maximum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     1.75%        
2016 Refinancing Credit Agreement | Revolving Credit Facility              
Debt Instrument [Line Items]              
Credit facility loan term, years 5 years            
Line of credit facility, amount currently available     $ 675,700,000        
2016 Refinancing Credit Agreement | Revolving Credit Facility | Line of Credit              
Debt Instrument [Line Items]              
Revolving credit facility, amount $ 1,200,000,000            
2016 Refinancing Credit Agreement | Term Loan              
Debt Instrument [Line Items]              
Ticking fee 0.10%            
2016 Refinancing Credit Agreement | Term Loan | Line of Credit              
Debt Instrument [Line Items]              
Revolving credit facility, amount $ 400,000,000            
2016 Refinancing Credit Agreement | Letter of Credit              
Debt Instrument [Line Items]              
Line of credit amount outstanding     $ 24,300,000        
2013 Refinancing Credit Agreement              
Debt Instrument [Line Items]              
Deferred financing cost   $ 1,000,000          
Basis spread on effective rate     0.50%        
Debt instrument, basis spread on variable rate     1.00%        
2013 Refinancing Credit Agreement | Base Rate | Minimum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.00%        
2013 Refinancing Credit Agreement | Base Rate | Maximum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.75%        
2013 Refinancing Credit Agreement | Alternative Rate | Minimum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     0.75%        
2013 Refinancing Credit Agreement | Alternative Rate | Maximum              
Debt Instrument [Line Items]              
Debt instrument, basis spread on variable rate     1.75%        
2013 Refinancing Credit Agreement | Revolving Credit Facility              
Debt Instrument [Line Items]              
Credit facility loan term, years   5 years          
2013 Refinancing Credit Agreement | Revolving Credit Facility | Line of Credit              
Debt Instrument [Line Items]              
Revolving credit facility, amount   $ 800,000,000