Goodwill And Intangible Assets (Schedule Of Future Period Amortization Expense) (Details) (USD $)	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Goodwill And Intangible Assets
Amortization expense	$ 1,000,000	$ 900,000	$ 3,000,000	$ 2,800,000
2011 (remaining three months)			977,000
2012			3,274,000
2013			3,097,000
2014			2,344,000
2015			$ 1,769,000

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Aggregate amount of intangible asset amortization recognized as expense during the period.

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The amount of amortization expense expected to be recognized during the remainder of the current fiscal year.

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The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.

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The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years.

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The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years.

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The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.

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