CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME
NET SALES	$ 1,242,001	$ 1,239,817	$ 2,274,063	$ 2,254,943
COST OF GOODS SOLD	1,037,070	1,053,091	1,901,896	1,913,950
GROSS PROFIT	204,931	186,726	372,167	340,993
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	113,781	112,891	223,121	218,207
OTHER	(1,209)	(402)	(1,944)	103
EARNINGS FROM OPERATIONS	92,359	74,237	150,990	122,683
INTEREST EXPENSE	1,898	2,407	3,805	4,867
INTEREST INCOME	(189)	(512)	(530)	(757)
UNREALIZED LOSS (GAIN) ON INVESTMENTS AND OTHER	(2,701)	(170)	472	(1,518)
NET INTEREST EXPENSE	(992)	1,725	3,747	2,592
EARNINGS BEFORE INCOME TAXES	93,351	72,512	147,243	120,091
INCOME TAXES	23,657	17,367	36,979	28,944
NET EARNINGS	69,694	55,145	110,264	91,147
LESS NET EARNINGS ATTRIBUTABLE TO NONCONTROLLING INTEREST	(3,231)	(630)	(3,642)	(1,092)
NET EARNINGS ATTRIBUTABLE TO CONTROLLING INTEREST	$ 66,463	$ 54,515	$ 106,622	$ 90,055
EARNINGS PER SHARE - BASIC (USD per share)	$ 1.08	$ 0.88	$ 1.73	$ 1.46
EARNINGS PER SHARE - DILUTED (USD per share)	$ 1.08	$ 0.88	$ 1.73	$ 1.46
OTHER COMPREHENSIVE INCOME:
NET EARNINGS	$ 69,694	$ 55,145	$ 110,264	$ 91,147
OTHER COMPREHENSIVE GAIN (LOSS)	2,839	471	(5,717)	1,844
COMPREHENSIVE INCOME	72,533	55,616	104,547	92,991
LESS COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTEREST	(3,356)	(791)	(1,432)	(1,477)
COMPREHENSIVE INCOME ATTRIBUTABLE TO CONTROLLING INTEREST	$ 69,177	$ 54,825	$ 103,115	$ 91,514