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Discontinued Operations (Discontinued Operations' Operating Results) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Disclosure Discontinued Operations Discontinued Operations Operating Results [Abstract]
Net Sales	$ 25,544	$ 45,498	$ 38,506
Income from discontinued operations before income taxes	3,777	5,693	1,862
Provision for income taxes	(1,321)	(1,993)	(652)
Income from discontinued operations, net of income taxes	$ 2,456	$ 3,700	$ 1,210

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Pretax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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