Quarterly report pursuant to Section 13 or 15(d)

Long-term Borrowings (Details)

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Long-term Borrowings (Details) - USD ($)
9 Months Ended
Sep. 28, 2018
Sep. 30, 2018
Debt Instrument [Line Items]    
Minimum aggregate principal payment   $ 5,000,000
Integral multiple payments in excess thereof   $ 1,000,000
Early termination premium (as a percentage)   1.00%
LIBOR    
Debt Instrument [Line Items]    
Basis on variable rate, first year (as a percentage)   5.00%
Basis on variable rate, second year (as a percentage)   7.00%
Basis on variable rate, thereafter (as a percentage)   8.00%
Term Loan    
Debt Instrument [Line Items]    
Debt term (in years) 3 years  
Principal amount $ 60,000,000.0  
Principal amount as a percentage of par amount 99.00%  
Discount $ 600,000  
Fees $ 2,600,000