CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income/(loss)
Beginning Balance at Jan. 03, 2009	$ 227,960	$ 120	$ 107,305	$ (102,000)	$ 230,797	$ (8,262)
Comprehensive income:
Net earnings	61,156				61,156
Currency translation adjustments	1,480					1,480
Change in unrecognized pension benefit costs, net of tax of $3,200 in 2011 , $105 in 2010, and $(201) in 2009	257					257
Unrealized (loss) gain on interest rate swap, net of tax of $437 in 2011, $(342) in 2010, and $(1,104) in 2009	1,656					1,656
Comprehensive income	64,549				61,156	3,393
Exercise of stock options	391		391
Stock issuance	44,048	16	44,032
Stock compensation	10,721		10,721
Tax benefit on stock compensation	(448)		(448)
Cumulative effect of adopting new accounting standard	(4,566)				(4,566)
Ending Balance at Jan. 02, 2010	342,655	136	162,001	(102,000)	287,387	(4,869)
Comprehensive income:
Net earnings	72,867				72,867
Currency translation adjustments	599					599
Change in unrecognized pension benefit costs, net of tax of $3,200 in 2011 , $105 in 2010, and $(201) in 2009	(187)					(187)
Unrealized (loss) gain on interest rate swap, net of tax of $437 in 2011, $(342) in 2010, and $(1,104) in 2009	423					423
Comprehensive income	73,702				72,867	835
Exercise of stock options	666		666
Stock issuance	1,777	1	1,776
Stock compensation	14,682		14,682
Tax benefit on stock compensation	450		450
Purchase of treasury stock	(9,019)			(9,019)
Ending Balance at Jan. 01, 2011	424,913	137	179,575	(111,019)	360,254	(4,034)
Comprehensive income:
Net earnings	95,473				95,473
Currency translation adjustments	(10,769)					(10,769)
Change in unrecognized pension benefit costs, net of tax of $3,200 in 2011 , $105 in 2010, and $(201) in 2009	(5,145)					(5,145)
Unrealized (loss) gain on interest rate swap, net of tax of $437 in 2011, $(342) in 2010, and $(1,104) in 2009	(586)					(586)
Comprehensive income	78,973				95,473	(16,500)
Exercise of stock options	224		224
Stock compensation	18,133		18,133
Tax benefit on stock compensation	4,389		4,389
Purchase of treasury stock	(15,663)			(15,663)
Ending Balance at Dec. 31, 2011	$ 510,969	$ 137	$ 202,321	$ (126,682)	$ 455,727	$ (20,534)