General form of registration statement for all companies including face-amount certificate companies

Debt - ABL Facility (Details)

v3.8.0.1
Debt - ABL Facility (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 30, 2017
Dec. 29, 2016
ABL Facility      
Line of Credit Facility [Line Items]      
Revolving Line of Credit     $ 200,000,000
Eligible Percent Of Trade Receivables     85.00%
Debt Instrument Variable Rate Floor     1.00%
Available borrowing capacity     $ 121,719,000
Outstanding letters of credit     $ 10,119,000
Borrowing Requirement Of Credit Facility Percent Of Availability     90.00%
Financial Maintenance Covenants     $ 0
ABL Facility | Standby Letters of Credit [Member]      
Line of Credit Facility [Line Items]      
Revolving Line of Credit     $ 30,000,000
Base Rate [Member] | Minimum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent) 2.00% 2.75%  
Base Rate [Member] | Maximum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent) 2.50% 3.25%  
Base Rate [Member] | ABL Facility | Minimum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent)     0.25%
Base Rate [Member] | ABL Facility | Maximum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent)     0.50%
London Interbank Offered Rate (LIBOR) [Member]      
Line of Credit Facility [Line Items]      
Debt Instrument Variable Rate Floor 1.00%    
London Interbank Offered Rate (LIBOR) [Member] | Minimum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent) 3.00% 3.75%  
London Interbank Offered Rate (LIBOR) [Member] | Maximum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent) 3.50% 4.25%  
London Interbank Offered Rate (LIBOR) [Member] | ABL Facility | Minimum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent)     1.25%
London Interbank Offered Rate (LIBOR) [Member] | ABL Facility | Maximum      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent)     1.50%
Federal Funds Rate [Member] | ABL Facility      
Line of Credit Facility [Line Items]      
Variable interest rate (as a percent)     0.50%