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Quarterly Financial Data (Tables)
 12 Months Ended
Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Supplemental Quarterly Financial Data
The supplemental quarterly financial data are as follows:
 Quarters Ended
 March 28,
2020		June 27,
2020		September 26,
2020		December 31,
2020
Net sales$2,285,763 2,049,800 2,574,870 2,641,764 
Gross profit616,440 369,967 706,199 738,084 
Net earnings (loss)110,514 (48,257)205,117 248,222 
Basic earnings (loss) per share1.54 (0.68)2.88 3.50 
Diluted earnings (loss) per share1.54 (0.68)2.87 3.49 
 Quarters Ended
 March 30,
2019		June 29,
2019		September 28,
2019		December 31,
2019
Net sales$2,442,490 2,584,485 2,519,185 2,424,512 
Gross profit624,927 736,618 691,691 622,807 
Net earnings121,585 202,441 155,518 264,667 
Basic earnings per share1.68 2.80 2.16 3.69 
Diluted earnings per share1.67 2.79 2.15 3.68