Operating (Gains), Losses and Other Charges, Net (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 25, 2019	Sep. 26, 2018	Sep. 25, 2019	Sep. 26, 2018	Dec. 26, 2018
Other Income and Expenses [Abstract]
Gains on sales of assets and other, net	$ (51,183)	$ (695)	$ (87,497)	$ (759)
Restructuring charges and exit costs	1,092	48	2,038	816
Impairment charges	0	1,440	0	1,558
Operating (gains), losses and other charges, net	(50,091)	793	(85,459)	1,615
Restructuring Charges [Abstract]
Exit costs	20	48	194	347
Severance and other restructuring charges	1,072	0	1,844	469
Total restructuring charges and exit costs	1,092	$ 48	2,038	$ 816
Exit cost liabilities	100		100		$ 1,200
Accrued severance and other restructuring charges	$ 1,100		$ 1,100		$ 600

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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