Impairment of Long-Lived Assets and Loss on Disposition of Businesses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 26, 2020	Sep. 28, 2019	Jun. 29, 2019	Sep. 26, 2020	Sep. 28, 2019
Impairment or Disposal of Tangible Assets Disclosure [Abstract]
Impairment of Long-Lived Assets Held-for-use			$ 74,908
Loss on disposition of businesses, net	$ 0	$ 14,573		$ 0	$ 15,439

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Period Type:	duration