CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Dec. 31, 2012	Jun. 30, 2012
CURRENT ASSETS:
Cash & cash equivalents	$ 31,946	$ 63,862	$ 66,617
Investments	24,868	18,746	12,820
Trade accounts receivable, less allowances of $1,907, $2,142 & $1,502	24,888	42,108	26,010
Other receivables	5,292	5,528	3,654
Inventories:
Finished goods & work-in-process	69,715	37,046	62,867
Raw material & supplies	29,841	25,337	33,112
Prepaid expenses	2,221	4,148	5,777
Deferred income taxes	4,935	466	578
Total current assets	193,706	197,241	211,435
PROPERTY, PLANT & EQUIPMENT, at cost:
Land	21,685	21,687	21,653
Buildings	108,387	108,391	107,891
Machinery & equipment	329,861	331,110	323,046
Construction in progress	8,392	2,539	7,940
Property, plant and equipment, gross	468,325	463,727	460,530
Less-accumulated depreciation	270,827	262,437	252,784
Net property, plant and equipment	197,498	201,290	207,746
OTHER ASSETS:
Goodwill	73,237	73,237	73,237
Trademarks	175,024	175,024	175,024
Investments	168,751	124,685	114,889
Split dollar officer life insurance	41,394	66,911	70,549
Prepaid expenses			1,564
Equity method investment	1,622	2,127	3,270
Deferred income taxes	5,926	6,222	7,723
Total other assets	465,954	448,206	446,256
Total assets	857,158	846,737	865,437
CURRENT LIABILITIES:
Accounts payable	11,630	8,942	14,374
Dividends payable	4,773		4,714
Accrued liabilities	45,773	45,150	42,889
Postretirement health care and life insurance benefits	555	555	574
Income taxes payable	249	6,118
Total current liabilities	62,980	60,765	62,551
NONCURRENT LIABILITIES:
Deferred income taxes	42,862	38,748	43,311
Postretirement health care and life insurance benefits	28,188	26,826	27,051
Industrial development bonds	7,500	7,500	7,500
Liability for uncertain tax positions	8,261	7,866	7,580
Deferred compensation and other liabilities	60,941	55,217	51,644
Total noncurrent liabilities	147,752	136,157	137,086
SHAREHOLDERS' EQUITY:
Capital in excess of par value	584,969	547,576	563,859
Retained earnings	39,199	80,210	82,931
Accumulated other comprehensive loss	(17,182)	(16,447)	(19,910)
Treasury stock (at cost)- 76, 73 & 73 shares, respectively	(1,992)	(1,992)	(1,992)
Total shareholders' equity	646,426	649,815	665,800
Total liabilities and shareholders' equity	857,158	846,737	865,437
Common stock
SHAREHOLDERS' EQUITY:
Common stock	25,973	25,450	25,884
Class B common stock
SHAREHOLDERS' EQUITY:
Common stock	$ 15,459	$ 15,018	$ 15,028