Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 2,302,294	$ 2,188,705
Less accumulated depreciation and amortization	1,377,865	1,301,777
Property and equipment, net	924,429	886,928
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	137,890	137,977
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	779,927	736,812
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	1,159,084	1,096,252
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 225,393	$ 217,664
Minimum [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	10 years
Minimum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] | Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Maximum [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	minus 60 years
Maximum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	minus 12 years
Maximum [Member] | Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	minus 20 years