Discontinued Operations - Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Net Cash Provided by (Used in) Discontinued Operations [Abstract]
Depreciation	$ 0	$ 2,803	$ 2,608	$ 8,150
Amortization	0	1,333	1,460	3,877
Capital expenditures	2,085	724	6,155	6,124
Impairment of intangible assets and goodwill	0	0	155,745	20,319
Loss on classification of assets held for sale	30,562	0	266,742	0
Other investing activities	1,501	1,795	4,875	3,626
Capital expenditures included in accounts payable at end of period	70	35	70	35
Right-of-use assets obtained in exchange for lease obligations	$ 1,454	$ 197	$ 4,591	$ 398