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Revenue Recognition - Significant Changes in the Contract Assets and Liabilities Balances (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 04, 2021	Dec. 31, 2020
Contract Asset
Beginning Balance	$ 48,390	$ 56,364
Increases due to rights to consideration for customer specific goods produced, but not billed during the period	49,666	48,390
Transferred to receivables from contract assets recognized at the beginning of the period	(48,390)	(56,364)
Ending Balance	49,666	48,390
Contract Liability
Beginning Balance	(16,687)	(17,047)
Revenue deferred or rebates accrued	(20,817)	(32,512)
Recognized as revenue	3,347	9,189
Rebates paid to customers	16,914	23,683
Ending Balance	$ (17,243)	$ (16,687)

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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-Publisher FASB
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