Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 04, 2020	Sep. 29, 2019	Oct. 04, 2020	Sep. 29, 2019
Cost of Sales	$ 176,480,000	$ 210,608,000	$ 512,548,000	$ 608,551,000
Prior Period Reclassification Adjustment		0		0
Selling, General and Administrative Expenses	$ 88,161,000	93,396,000	$ 255,902,000	291,369,000
Costs and Expenses		304,004,000		899,920,000
Cost of sales before reclassification [Member]
Cost of Sales		212,590,000		613,797,000
SG&A As Reported [Member]
Selling, General and Administrative Expenses		91,414,000		286,123,000
Selling, General and Administrative Expenses [Member]
Prior Period Reclassification Adjustment		1,982,000		5,246,000
Cost of Sales [Member]
Prior Period Reclassification Adjustment		$ (1,982,000)		$ (5,246,000)