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Discontinued Operations (Discontinued Operations' Operating Results) (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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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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