Annual report pursuant to Section 13 and 15(d)

Debt - Fair Value of Debt (Details)

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Debt - Fair Value of Debt (Details) - USD ($)
$ in Thousands
Dec. 26, 2019
Dec. 27, 2018
Debt Instrument [Line Items]    
Total debt at par value $ 145,500 $ 149,000
Less: unamortized discount and debt issuance costs 2,894 3,666
Net carrying amount 142,606 145,334
Level 3    
Debt Instrument [Line Items]    
Fair value $ 145,136 $ 147,883