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EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Numerator:
Net income	$ 18,014	$ 10,813	$ 33,494	$ 18,759
Denominator:
Weighted average number of common shares outstanding - Basic	19,155,127	18,897,879	19,135,946	18,824,585
Dilutive effect of options and restricted stock units outstanding under the Company's employee compensation plans	528,152	362,614	490,875	175,266
Weighted average number of common shares outstanding - Diluted	19,683,279	19,260,493	19,626,821	18,999,851

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