CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 25, 2011	Jun. 26, 2010	Jun. 25, 2011	Jun. 26, 2010
CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS (Unaudited) [Abstract]
NET SALES	$ 544,139	$ 638,635	$ 931,372	$ 1,031,593
COST OF GOODS SOLD	487,552	560,749	833,371	902,073
GROSS PROFIT	56,587	77,886	98,001	129,520
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	45,328	54,041	91,816	102,530
NET LOSS ON DISPOSITION OF ASSETS, EARLY RETIREMENT, AND OTHER IMPAIRMENT AND EXIT CHARGES	3,482	212	3,489	384
EARNINGS FROM OPERATIONS	7,777	23,633	2,696	26,606
INTEREST EXPENSE	929	903	1,812	1,789
INTEREST INCOME	(132)	(70)	(380)	(190)
NON-OPERATING (INCOME)/EXPENSE	797	833	1,432	1,599
EARNINGS BEFORE INCOME TAXES	6,980	22,800	1,264	25,007
INCOME TAXES	2,502	8,332	215	8,819
NET EARNINGS	4,478	14,468	1,049	16,188
LESS NET EARNINGS ATTRIBUTABLE TO NONCONTROLLING INTEREST	(201)	(752)	(442)	(1,485)
NET EARNINGS ATTRIBUTABLE TO CONTROLLING INTEREST	$ 4,277	$ 13,716	$ 607	$ 14,703
EARNINGS PER SHARE - BASIC	$ 0.22	$ 0.71	$ 0.03	$ 0.76
EARNINGS PER SHARE - DILUTED	$ 0.22	$ 0.70	$ 0.03	$ 0.75
WEIGHTED AVERAGE SHARES OUTSTANDING	19,413	19,259	19,360	19,258
WEIGHTED AVERAGE SHARES OUTSTANDING WITH COMMON STOCK EQUIVALENTS	19,546	19,531	19,513	19,524