Annual report pursuant to Section 13 and 15(d)

Debt - ABL Facility (Details)

v3.8.0.1
Debt - ABL Facility (Details) - ABL Facility
$ in Thousands
 12 Months Ended
Dec. 28, 2017
USD ($)
Line of Credit Facility [Line Items]  
Revolving Line of Credit $ 200,000
Eligible Percent Of Trade Receivables 85.00%
Available borrowing capacity $ 146,154
Outstanding letters of credit $ 12,846
Borrowing Requirement Of Credit Facility Percent Of Availability 90.00%
Standby Letters of Credit [Member]  
Line of Credit Facility [Line Items]  
Revolving Line of Credit $ 30,000
Base Rate [Member] | Minimum  
Line of Credit Facility [Line Items]  
Variable interest rate (as a percent) 0.25%
Base Rate [Member] | Maximum  
Line of Credit Facility [Line Items]  
Variable interest rate (as a percent) 0.50%
London Interbank Offered Rate (LIBOR) [Member] | Minimum  
Line of Credit Facility [Line Items]  
Variable interest rate (as a percent) 1.25%
London Interbank Offered Rate (LIBOR) [Member] | Maximum  
Line of Credit Facility [Line Items]  
Variable interest rate (as a percent) 1.50%
Federal Funds Rate [Member]  
Line of Credit Facility [Line Items]  
Variable interest rate (as a percent) 0.50%
One Month LIBOR  
Line of Credit Facility [Line Items]  
Variable interest rate (as a percent) 1.00%