CONSOLIDATED CONDENSED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012	Sep. 29, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 5,151	$ 7,647	$ 4,355
Restricted cash	720	6,831	553
Accounts receivable, net	241,990	163,225	191,178
Inventories:
Raw materials	127,854	136,201	119,346
Finished goods	104,356	106,979	89,792
Total inventories	232,210	243,180	209,138
Refundable income taxes	0	7,521	1,266
Deferred income taxes	9,203	9,212	9,694
Other current assets	20,280	15,557	16,204
TOTAL CURRENT ASSETS	509,554	453,173	432,388
DEFERRED INCOME TAXES	1,696	1,759	0
OTHER ASSETS	12,615	14,583	14,918
GOODWILL	160,146	159,316	157,966
INDEFINITE-LIVED INTANGIBLE ASSETS	2,340	2,340	2,340
OTHER INTANGIBLE ASSETS, NET	7,815	8,101	8,802
PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment	578,429	543,595	541,473
Less accumulated depreciation and amortization	(339,082)	(322,327)	(324,542)
PROPERTY, PLANT AND EQUIPMENT, NET	239,347	221,268	216,931
TOTAL ASSETS	933,513	860,540	833,345
CURRENT LIABILITIES:
Accounts payable	85,520	66,054	72,080
Accrued liabilities:
Compensation and benefits	45,651	34,728	39,743
Income taxes	6,269	0	0
Other	26,900	14,002	17,656
Current portion of long-term debt	0	0	40,000
TOTAL CURRENT LIABILITIES	164,340	114,784	169,479
LONG-TERM DEBT, less current portion	84,700	95,790	15,918
DEFERRED INCOME TAXES	24,861	24,930	19,889
OTHER LIABILITIES	16,211	17,511	16,342
TOTAL LIABILITIES	290,112	253,015	221,628
Controlling interest shareholders' equity:
Preferred stock, no par value; shares authorized 1,000,000; issued and outstanding, none
Common stock, no par value; shares authorized 40,000,000; issued and outstanding, 19,893,513, 19,799,606, and 19,735,289	19,900	19,800	19,790
Additional paid-in capital	153,932	149,805	148,581
Retained earnings	458,005	426,887	432,772
Accumulated other comprehensive earnings	3,901	4,258	4,554
Employee stock notes receivable	(732)	(982)	(1,013)
Total controlling interest shareholders' equity	635,006	599,768	604,684
Noncontrolling interest	8,395	7,757	7,033
TOTAL SHAREHOLDERS' EQUITY	643,401	607,525	611,717
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 933,513	$ 860,540	$ 833,345