CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011	Oct. 01, 2011
CURRENT ASSETS
Cash & cash equivalents	$ 37,124	$ 78,612	$ 25,690
Investments	14,563	10,895	9,440
Trade accounts receivable, Less allowances of $3,501, $1,731 & $2,621	111,578	41,895	96,743
Other receivables	6,539	3,391	4,386
Inventories, at cost
Finished goods & work in process	36,506	42,676	51,803
Raw material & supplies	28,925	29,084	30,614
Prepaid expenses	4,167	5,070	4,516
Deferred income taxes	600	578	621
Total current assets	240,002	212,201	223,813
PROPERTY, PLANT & EQUIPMENT, at cost
Land	21,694	21,939	21,542
Buildings	107,962	107,567	102,798
Machinery & equipment	323,277	322,993	305,582
Construction in progress	9,566	2,598	21,831
Property, plant and equipment, gross	462,499	455,097	451,753
Less-accumulated depreciation	258,112	242,935	238,395
Net property, plant and equipment	204,387	212,162	213,358
OTHER ASSETS
Goodwill	73,237	73,237	73,237
Trademarks	175,024	175,024	175,024
Investments	126,387	96,161	98,523
Split dollar officer life insurance	70,549	74,209	74,429
Prepaid expenses	680	3,212	4,029
Equity method investment	2,958	3,935	4,325
Deferred income taxes	8,015	7,715	8,291
Total other assets	456,850	433,493	437,858
Total assets	901,239	857,856	875,029
CURRENT LIABILITIES
Accounts payable	18,050	10,683	17,421
Dividends payable	4,689	4,603	4,627
Accrued liabilities	49,891	43,069	47,773
Income taxes payable	8,137		3,661
Total current liabilities	80,767	58,355	73,482
NONCURRENT LIABILITIES
Deferred income taxes	43,265	43,521	46,346
Postretirement health care and life insurance benefits	28,362	26,108	22,256
Industrial development bonds	7,500	7,500	7,500
Liability for uncertain tax positions	8,019	8,345	9,560
Deferred compensation and other liabilities	54,665	48,092	45,110
Total noncurrent liabilities	141,811	133,566	130,772
SHAREHOLDERS' EQUITY
Capital in excess of par value	556,771	533,677	541,362
Retained earnings	101,171	114,269	108,599
Accumulated other comprehensive loss	(18,002)	(19,953)	(17,360)
Treasury stock (at cost)- 73, 71 & 71 shares, respectively	(1,992)	(1,992)	(1,992)
Total shareholders' equity	678,661	665,935	670,775
Total liabilities and shareholders' equity	901,239	857,856	875,029
Common stock
SHAREHOLDERS' EQUITY
Common stock	25,693	25,333	25,560
Class B common stock
SHAREHOLDERS' EQUITY
Common stock	$ 15,020	$ 14,601	$ 14,606