Acquisition (Details) (Synventive [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2012
Synventive [Member]
Business Acquisition [Line Items]
Net sales	$ 262,120
Income from continuing operations	18,897
Net income	$ 23,514
Basic:
Income from continuing operations (in dollars per share)	$ 0.35
Net income (in dollars per share)	$ 0.43
Diluted:
Income from continuing operations (in dollars per share)	$ 0.34
Net income (in dollars per share)	$ 0.42

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

-Number 141

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period.

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