BUSINESS REALIGNMENT AND IMPAIRMENT CHARGES (Details) (USD $)	3 Months Ended		12 Months Ended
	Apr. 01, 2012	Apr. 03, 2011	Dec. 31, 2011	Dec. 31, 2010
Business realignment and impairment charges, net
Carrying value of real estate from manufacturing facilities held for sale	$ 7,000,000
Next Century Program
Business Realignment And Impairment Charges
Restructuring costs recorded in Cost of Sales	19,454,000	6,859,000
Restructuring costs recorded in Selling, Marketing and Administrative	813,000	1,014,000
Business realignment and impairment charges, net
Fixed asset impairments and plant closure expenses	2,490,000	881,000
Employee separation (credits) costs	814,000	957,000
Business Realignment And Impairment Charges Net	3,304,000	1,838,000
Total business realignment and impairment (credits) charges	23,571,000	9,711,000
Restructuring Reserve	17,800,000
Total costs recorded during the period for this program			43,400,000	53,900,000
Next Century Project Implementation And Startup Costs	20,000,000
Estimated Next Century pretax and nonrecurring project implementation costs, minimum	150,000,000
Estimated Next Century pretax and nonrecurring project implementation costs, maximum	160,000,000
Next Century pretax business realignment and impairment charges, maximum	140,000,000
Next Century pretax business realignment and impairment charges, minimum	130,000,000
Payments against recorded liability balance	$ 2,400,000