Revenue Recognition - Summary of Activity in Allowance for Credit Losses (Details) $ in Thousands	9 Months Ended
	Sep. 27, 2020 USD ($)
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of year - allowance for credit losses	$ 10,232
Additions charged to costs and expenses	14,238
Write-offs, net of recoveries	(2,970)
Balance at end of period - allowance for credit losses	$ 21,500