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Acquisitions (Schedule Of Supplemental Unaudited Pro Forma Results) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Acquisitions [Abstract]
Sales	$ 216,113	$ 247,555	$ 433,311	$ 480,842
Income from continuing operations	$ 7,353	$ 11,178	$ 15,151	$ 26,281
Earnings per share from continuing operations, Basic	$ 0.23	$ 0.35	$ 0.47	$ 0.82
Earnings per share from continuing operations, Diluted	$ 0.23	$ 0.35	$ 0.47	$ 0.82

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

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- Definition

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

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