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Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2011

Supplemental Cash Flow Information [Abstract]

Schedule Of Supplemental Cash Flow Information

Fiscal Year		2011				2010				2009
Cash paid during the year for:
Interest		$	3,323			$	1,026			$	443
Income taxes		$	135,133			$	107,787			$	62,957
Supplemental disclosures of non-cash investing and financing activities:
Additions to property, plant and equipment included in accounts payable		$	23,766			$	8,034			$	4,349
Retirement of treasury stock		$	482			$	725			$	212

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