Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Key Terms of Credit Agreement (Details)

v3.10.0.1
Long-Term Debt - Key Terms of Credit Agreement (Details) - USD ($)
$ in Thousands
12 Months Ended
May 01, 2018
Apr. 25, 2018
Dec. 31, 2018
Mar. 28, 2018
Dec. 31, 2017
May 05, 2017
Long-Term Debt            
Amount outstanding     $ 751,955      
Term Loan Facility            
Long-Term Debt            
Amount outstanding     327,500      
Senior Notes 5.625%            
Long-Term Debt            
Amount outstanding     400,000      
Equipment Notes            
Long-Term Debt            
Amount outstanding     24,455      
Equipment notes issued     $ 26,600      
Debt term     5 years      
Equipment Notes | Minimum            
Long-Term Debt            
Interest rate     3.90%      
Equipment Notes | Maximum            
Long-Term Debt            
Interest rate     4.40%      
Revolving Facility            
Long-Term Debt            
Availability     $ 250,000   $ 250,000  
Amended Credit Agreement            
Long-Term Debt            
Maximum amount of senior notes that may be issued under the credit agreement       $ 500,000    
Additional term loan and/or revolver capacity available under incremental facility     $ 200,000      
Amended Credit Agreement | Minimum            
Long-Term Debt            
Commitment fee (as a percent)     0.15%      
Amended Credit Agreement | Maximum            
Long-Term Debt            
Commitment fee (as a percent)     0.275%      
Amended Credit Agreement | Term Loan Facility            
Long-Term Debt            
Proceeds from delayed-draw term loan $ 100,000          
Availability     $ 250,000      
Additional delayed draw term loan     100,000      
Maximum borrowing capacity including delayed draw feature     $ 350,000      
Amount outstanding           $ 250,000
Amended Credit Agreement | Senior Notes 5.625%            
Long-Term Debt            
Proceeds from issuance of senior notes   $ 400,000        
Interest rate   5.625%        
Amended Credit Agreement | Senior Notes 5.625% | Change in Control Scenario            
Long-Term Debt            
Redemption price as a percentage of principal     101.00%      
Amended Credit Agreement | Revolving Facility            
Long-Term Debt            
Availability     $ 250,000      
Sublimit for issuance of letters of credit under Revolving Facility*     100,000      
Sublimit for swingline loans under Revolving Facility*     $ 20,000      
Interest rate     3.59%      
Amended Credit Agreement | Base Rate Borrowings | Minimum            
Long-Term Debt            
Applicable margin based on total leverage ratio     0.00%      
Amended Credit Agreement | Base Rate Borrowings | Maximum            
Long-Term Debt            
Applicable margin based on total leverage ratio     1.50%      
Amended Credit Agreement | LIBOR Rate Borrowings | Minimum            
Long-Term Debt            
Applicable margin based on total leverage ratio     1.00%      
Amended Credit Agreement | LIBOR Rate Borrowings | Maximum            
Long-Term Debt            
Applicable margin based on total leverage ratio     2.50%      
Federal Funds Rate | Amended Credit Agreement | Base Rate Borrowings            
Long-Term Debt            
Basis spread     0.50%      
LIBOR | Amended Credit Agreement | Base Rate Borrowings            
Long-Term Debt            
Basis spread     1.00%      
Maturity of the reference rate     1 month