CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands	Total	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Noncontrolling Interest [Member]	Redeemable Noncontrolling Interest [Member]
Balance at Jan. 02, 2010		$ 2,313	$ 119,133	$ 294,166	$ (18,740)	$ 2,037	$ 7,393
Balance (in shares) at Jan. 02, 2010		23,128
Net income	39,918			38,914		565	439
Currency translation adjustment					720	(170)	(541)
Minimum pension liability adjustment, net of tax of $6,200, $5,500 and $700 for 2012, 2011 and 2010, respectively					(1,422)
Dividends on common stock				(11,957)
Noncontrolling dividends						(377)
Common stock issued		28	4,987
Common stock issued (in shares)		271
Share-based compensation		9	4,264
Share-based compensation (in shares)		97
Common stock repurchased or received for stock options exercised (in shares)		(239)
Common stock repurchased or received for stock options exercised		(24)		(7,218)
Tax benefit of stock options exercised			1,321
Balance at Jan. 01, 2011		2,326	129,705	313,905	(19,442)	2,055	7,291
Balance (in shares) at Jan. 01, 2011		23,257
Net income	63,723			63,099		474	150
Currency translation adjustment					(21,391)	223	(1,128)
Minimum pension liability adjustment, net of tax of $6,200, $5,500 and $700 for 2012, 2011 and 2010, respectively					(8,734)
Dividends on common stock				(12,441)
Noncontrolling dividends						(449)
Common stock issued		34	8,875
Common stock issued (in shares)		353
Share-based compensation		5	3,965
Share-based compensation (in shares)		52
Common stock repurchased or received for stock options exercised (in shares)		(323)
Common stock repurchased or received for stock options exercised		(32)		(13,878)
Purchase of remaining redeemable noncontrolling interest					303		(7,655)
Adjustment to Vertical redemption value				(228)			228
Adjustment to acquired fair value							6,521
Tax benefit of stock options exercised			2,064
Balance at Dec. 31, 2011	448,135	2,333	144,609	350,457	(49,264)	2,303	5,407
Balance (in shares) at Dec. 31, 2011	23,339	23,339
Net income	83,738			82,864		446	428
Currency translation adjustment					1,835	275	(572)
Minimum pension liability adjustment, net of tax of $6,200, $5,500 and $700 for 2012, 2011 and 2010, respectively					(9,717)
Dividends on common stock				(13,367)
Noncontrolling dividends						(444)
Common stock issued		58	15,374
Common stock issued (in shares)		581
Share-based compensation		6	6,247
Share-based compensation (in shares)		57
Common stock repurchased or received for stock options exercised (in shares)		(410)
Common stock repurchased or received for stock options exercised		(41)		(21,648)
Tax benefit of stock options exercised			4,660
Balance at Dec. 29, 2012	$ 514,406	$ 2,356	$ 170,890	$ 398,306	$ (57,146)	$ 2,580	$ 5,263
Balance (in shares) at Dec. 29, 2012	23,567	23,567