QUARTERLY FINANCIAL DATA (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2016	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 674,575	$ 610,247	$ 640,249	$ 596,605	$ 633,828	$ 632,575	$ 682,123	$ 670,398		$ 2,521,676	$ 2,618,924	$ 3,123,143
Gross profit	165,135	155,023	175,117	160,968	129,280	156,751	169,548	165,454		656,243	621,033	808,117
Net Earnings, Amount	$ 70,064	$ 28,173	$ 42,026	$ 32,969	$ (30,561)	$ 12,066	$ 27,873	$ 30,739		$ 173,232	$ 40,117	$ 183,976
Net Earnings, Per Share, Basic (in dollars per share)	$ 3.12	$ 1.25	$ 1.86	$ 1.45	$ (1.34)	$ 0.52	$ 1.19	$ 1.29		$ 7.68	$ 1.72	$ 7.15
Net Earnings, Per Share, Diluted (in dollars per share)	3.10	1.24	1.85	1.45	(1.34)	0.52	1.19	1.28		7.63	1.71	7.09
Stock Price, High (in dollars per share)	156.05	139.62	145.94	125.69	117.94	121.23	128.26	130.26		156.05	130.26
Stock Price, Low (in dollars per share)	120.65	125.60	117.10	96.50	93.99	97.44	118.09	117.56		96.50	93.99
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	$ 1.375
Quarterly Financial Data
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
Restructuring and related cost, expected cost remaining					$ 11,500	$ 6,300					$ 11,500
Restructuring expenses (in dollars per share)										$ 0.58
Impairment of goodwill and intangible assets						$ 13,400				$ 0	41,970	$ 0
Impairment of goodwill and intangible assets (in dollars per share					$ 1.16	$ 0.58				$ 1.72
Goodwill impairment					$ 7,100						$ 34,892
Impairment of intangible assets					19,600
Increase (decrease) in product warranty reserve					$ 11,100
Increase (decrease) in product warranty reserve (in dollars per share)					$ 0.50
Increase (decrease) in allowance for bad debt					$ 5,100
Increase (decrease) in allowance for bad debt (in dollars per share)					$ 0.21
Foreign corporate income tax rate									20.00%		18.00%
Increase (decrease) in income taxes					$ 7,100
Increase (decrease) in income taxes (in dollars per share)					$ 0.31
Refinancing of long-term debt (in dollars per share)												$ 0.93
Broad Restructuring Plan
Quarterly Financial Data
Restructuring and related cost, expected cost remaining	$ 4,581				$ 39,852		$ 9,800			$ 4,581	$ 39,852
Restructuring expenses (in dollars per share)					$ 0.50	$ 0.27	$ 0.42