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SELECTED QUARTERLY FINANCIAL DATA (unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 26, 2020
Sep. 26, 2020
Jun. 27, 2020
Mar. 28, 2020
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Quarterly Financial Information Disclosure [Abstract]                      
Revenue $ 790,990 $ 743,300 $ 682,584 $ 707,059 $ 691,138 $ 667,951 $ 657,568 $ 604,569 $ 2,923,933 $ 2,621,226 $ 2,266,096
Gross profit 299,968 289,274 232,238 252,061 262,314 246,116 238,104 211,777      
Operating income 128,927 132,753 76,768 94,281 108,789 92,802 79,768 69,792 432,729 351,151 331,383
Net income attributable to common shareholders $ 143,191 $ 102,909 $ 67,435 $ 50,769 $ 80,348 $ 72,810 $ 43,728 $ 55,133 $ 364,304 $ 252,019 $ 226,373
Earnings Per Share, Basic and Diluted [Abstract]                      
Basic (in dollars per share) $ 2.88 $ 2.07 $ 1.36 $ 1.03 $ 1.64 $ 1.49 $ 0.90 $ 1.14 $ 7.35 $ 5.17 $ 4.72
Diluted (in dollars per share) $ 2.81 $ 2.03 $ 1.34 $ 1.02 $ 1.61 $ 1.46 $ 0.88 $ 1.11 $ 7.20 $ 5.07 $ 4.62