Leases - Cash and Non-cash Lease Activities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2021	Sep. 23, 2020	Dec. 30, 2020
Lessee, Lease, Description [Line Items]
Operating Lease, Payments	$ 20,202	$ 17,276
Finance Lease, Principal Payments	100	26
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	13,848	3,221
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	196
Derecognition of ROU assets due to terminations, impairment or modifications	(4,612)	(569)
Operating Lease ROU assets	172,823		$ 177,129
Operating lease liabilities	192,515
Property Lease [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Payments	19,371	16,348
Finance Lease, Principal Payments	67	24
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	13,848	3,180
Derecognition of ROU assets due to terminations, impairment or modifications	$ (4,513)	$ (543)
Finance Lease, Weighted-average remaining lease term	18 years 6 months 21 days	2 years 29 days
Operating Lease, Weighted-average remaining lease term	11 years 4 months 13 days	11 years 7 months 13 days
Finance Lease, Weighted Average Discount Rate, Percent	2.84%	11.10%
Operating Lease, Weighted Average Discount Rate, Percent	4.43%	4.31%
Equipment Lease [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Payments	$ 831	$ 928
Finance Lease, Principal Payments	33	2
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	0	41
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	196
Derecognition of ROU assets due to terminations, impairment or modifications	$ (99)	$ (26)
Finance Lease, Weighted-average remaining lease term	4 years 3 months 7 days	4 years 9 months 25 days
Operating Lease, Weighted-average remaining lease term	1 year 7 months 28 days	2 years 7 months 2 days
Finance Lease, Weighted Average Discount Rate, Percent	1.54%	1.68%
Operating Lease, Weighted Average Discount Rate, Percent	3.91%	3.89%