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Investments (Tables)

12 Months Ended

Dec. 31, 2011

Investments [Abstract]

Schedule Of Investments

		2011 Carrying Value								2010 Carrying Value
(in thousands)		Current				Non- Current				Current				Non- Current
Available-for-sale equity securities		$	36			$	—			$	36			$	—
Certificates of deposit and other securities			7,591				516				7,642				517
Total investments		$	7,627			$	516			$	7,678			$	517

Schedule Of Available-For-Sale Securities

(in thousands)		Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
Equity securities:
2011		$	25			$	11				—			$	36
2010		$	25			$	11				—			$	36

Schedule Of Proceeds And Realized Gains/(Losses) On Equity Securities And Certificates Of Deposit

(in thousands)		Proceeds				Gross Realized Gains				Gross Realized Losses
2011		$	12,950			$	124			$	—
2010		$	9,327			$	6			$	—
2009		$	10,828			$	—			$	(299	)

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- Definition

A table of investments, shown as a text block.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

+ References

No definition available.

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- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Topic 320

-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph (a)

-Name Accounting Standards Codification

-Paragraph 9

-Section 50

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

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