QUARTERLY FINANCIAL DATA (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								9 Months Ended	12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Sep. 30, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 697,363	$ 678,692	$ 682,405	$ 698,684	$ 714,978	$ 680,779	$ 712,737	$ 637,473		$ 2,757,144	$ 2,745,967	$ 2,521,676
Gross profit	149,701	164,340	174,999	169,240	170,289	163,594	183,280	164,605		658,280	681,768	656,243
Net Earnings, Amount	$ 17,662	$ 4,448	$ 32,960	$ 39,281	$ (3,611)	$ 35,208	$ 45,664	$ 38,979		$ 94,351	$ 116,240	$ 173,232
Basic (in dollars per share)	$ 0.80	$ 0.20	$ 1.47	$ 1.74	$ (0.16)	$ 1.56	$ 2.03	$ 1.73	$ 5.16	$ 4.23	$ 5.16	$ 7.68
Net Earnings, Per Share, Diluted (in dollars per share)	0.80	0.20	1.46	1.72	(0.16)	1.55	2.01	1.72	$ 5.11	4.20	5.11	$ 7.63
Stock Price, High (in dollars per share)	141.38	157.15	154.60	171.55	176.35	160.35	157.60	165.20		171.55	176.35
Stock Price, Low (in dollars per share)	103.01	135.00	137.90	140.10	153.65	140.90	144.65	135.95		103.01	135.95
Dividends Declared (in dollars per share)	$ 0.375	$ 0.375	$ 0.375	$ 0.375	$ 0.375	$ 0.375	$ 0.375	$ 0.375		$ 1.500	$ 1.500
Quarterly Financial Data
Blended tax rate (percent)	25.00%									21.00%	35.00%	35.00%
Deferred income tax expense	$ 20,372										$ 20,372
Deferred income tax expense (in usd per share)	$ 0.90
Provision charge for deemed repatriation tax	$ 9,890
Provision charge for deemed repatriation tax (in usd per share)	$ 0.44
Deferred expenses related to foreign withholding taxes and US state income taxes	$ 11,673									$ (1,881)	49,766	$ (32,391)
Deferred expenses related to foreign withholding taxes and US state income taxes (in usd per share)	$ 0.51
Deferred income tax benefit										$ 30,590
Deferred income tax benefit (in dollars per share)										$ 1.35
Provision for valuation allowance										$ 9,888
Valuation provision effect (in dollars per share)										$ 0.44
Reversal of contingent liability										$ 16,591
Reversal of contingent liability effect (in dollars per share)										$ 0.73
Impairment of goodwill and intangible assets										$ 15,780	0	$ 0
Goodwill impairment		$ 14,355								14,355	$ 34,892
Broad Restructuring Plan
Quarterly Financial Data
Restructuring and related cost, expected cost remaining	$ 4,581									$ 4,581