Basis of Presentation and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 23, 2020

Accounting Policies [Abstract]

Schedule of fair value measurement

The following table presents fair value for the interest rate swap at September 23, 2020 (in thousands):

			Fair Value Measurements Using
	Fair Value		Level 1		Level 2		Level 3
Other non-current liabilities - Interest rate swap	$	1,328	$	—	$	1,328	$	—

The following table presents fair value for the interest rate swap at December 25, 2019 (in thousands):

			Fair Value Measurements Using
	Fair Value		Level 1		Level 2		Level 3
Other assets - Interest rate swap	$	360	$	—	$	360	$	—

Summary of Non-Financial Instruments Measured at Fair Value on Nonrecurring Basis

The following non-financial instruments were measured at fair value, on a nonrecurring basis, as of and for the thirteen and thirty-nine weeks ended September 23, 2020, reflecting certain property and equipment assets and right-of-use (“ROU”) assets, for which an impairment loss was recognized during the corresponding periods, as discussed immediately below under "Impairment of Long-Lived Assets and ROU Assets." (in thousands):

									Thirteen Weeks		Thirty-Nine Weeks
			Fair Value Measurements at September 23, 2020 Using						Ended September 23, 2020		Ended September 23, 2020
	Total		Level 1		Level 2		Level 3		Impairment Losses		Impairment Losses
Certain property and equipment owned, net	$	—	$	—	$	—	$	—	$	1,506	$	2,935
Certain ROU assets, net	$	911	$	—	$	—	$	911	$	—	$	543

The following non-financial instruments were measured at fair value on a nonrecurring basis as of and for the thirteen and thirty-nine weeks ended September 25, 2019, reflecting certain property and equipment assets for which an impairment loss was recognized during the corresponding periods, as discussed immediately below under "Impairment of Long-Lived Assets and ROU Assets" (in thousands):

									Thirteen Weeks		Thirty-Nine Weeks
			Fair Value Measurements at September 25, 2019 Using						Ended September 25, 2019		Ended September 25, 2019
	Total		Level 1		Level 2		Level 3		Impairment Losses		Impairment Losses
Certain property and equipment owned, net	$	—	$	—	$	—	$	—	$	56	$	283