EQUITY ROLL FORWARD (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	$ 516,986
Redeemable noncontrolling interest, beginning balance	5,263
Net income	15,615	23,161
Equity, ending balance	530,425
Redeemable noncontrolling interest, ending balance	4,578
Total Equity
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	516,986
Net income	15,665
Dividends on common stock	(3,417)
Common stock issued	4,128
Common stock repurchased or received for stock options exercised	(2,506)
Share-based compensation	2,158
Tax benefit of stock options exercised	1,975
Currency translation adjustment	(5,154)
Pension liability, net of taxes	590
Equity, ending balance	530,425
Common Stock
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	4,712
Common stock issued	31
Common stock repurchased or received for stock options exercised	(7)
Share-based compensation	5
Equity, ending balance	4,741
Additional Paid in Capital
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	170,890
Common stock issued	4,106
Share-based compensation	2,153
Tax benefit of stock options exercised	1,975
Equity, ending balance	179,124
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	395,950
Net income	15,456
Dividends on common stock	(3,417)
Common stock issued	(9)
Common stock repurchased or received for stock options exercised	(2,499)
Equity, ending balance	405,481
Minimum Pension Liability
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	(56,936)
Pension liability, net of taxes	590
Equity, ending balance	(56,346)
Cumulative Translation Adjustment
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	(210)
Currency translation adjustment	(5,351)
Equity, ending balance	(5,561)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	2,580
Net income	209
Currency translation adjustment	197
Equity, ending balance	2,986
Redeemable Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Redeemable noncontrolling interest, beginning balance	5,263
Net income	(50)
Currency translation adjustment	(635)
Redeemable noncontrolling interest, ending balance	$ 4,578