CONDENSED CONSOLIDATED BALANCE SHEETS - (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 118,969	$ 124,368
Accounts receivable, less allowances (2014-$236; 2013-$139)	67,875	62,667
Inventories-Note D	26,950	32,226
Other current assets	17,739	17,008
Total current assets	231,533	236,269
Property, plant and equipment, less accumulated depreciation (2014-$184,364; 2013-$191,988)	74,441	74,869
Other Assets
Prepaid pension asset	58,881	56,396
Goodwill - Note L	32,047	32,047
Other indefinite-lived intangible asset - Note L	690	690
Other intangible assets, net - Note L	39,058	40,092
Deferred income taxes	36,309	38,620
Other	1,223	1,282
Total other assets	168,208	169,127
Total Assets	474,182	480,265
Current Liabilities
Accounts payable	43,939	47,052
Accrued liabilities	39,245	48,068
Total current liabilities	83,184	95,120
Long-term debt - Note E	76,600	75,000
Other long-term obligations	12,688	13,416
Shareholders' Equity
Preferred stock - authorized 25,000,000 shares without par value; none issued
Common stock - authorized 75,000,000 shares without par value; 56,079,128 shares issued at March 30, 2014 and 55,808,008 shares issued at December 31, 2013	299,748	297,164
Additional contributed capital	37,638	39,631
Retained earnings	362,724	358,997
Accumulated other comprehensive loss	(80,739)	(81,897)
Total shareholder's equity before treasury	619,371	613,895
Cost of common stock held in treasury (2014 - 22,276,742 and 2013 - 22,249,144 shares)	(317,661)	(317,166)
Total shareholders' equity	301,710	296,729
Total Liabilities and Shareholders' Equity	$ 474,182	$ 480,265