Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.10.0.1
Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 07, 2018
Jul. 15, 2018
Oct. 01, 2017
Jul. 09, 2017
Oct. 07, 2018
Oct. 01, 2017
Loss Contingencies [Line Items]            
Litigation contingencies $ 0   $ 0   $ 4,000 $ 0
Compensation-related Claims            
Loss Contingencies [Line Items]            
Litigation contingencies   $ 9,600   $ 1,600 $ 4,000