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Contract Assets and Contract Liabilities (Tables)
6 Months Ended
Jun. 27, 2021
Revenue from Contract with Customer [Abstract]  
Components of Contract Assets and Contract Liabilities
Contract assets and contract liabilities consisted of the following as of the dates presented (in thousands):
June 27,December 31,
20212020
Contract assets$376,154 $360,552 
Contract liabilities$88,903 $106,475