Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Carrying Value and Estimated Fair Value of Liabilities (Details)

v3.19.1
Fair Value Measurements - Summary of Carrying Value and Estimated Fair Value of Liabilities (Details) - USD ($)
$ in Thousands
Apr. 21, 2019
Dec. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of lease liability $ 11,622  
Carrying value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of lease liability 11,630  
Finance lease obligations   $ 10,200
Estimated Fair Value | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of lease liability $ 11,202  
Finance lease obligations   $ 10,143