Investments (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

Investments held consisted of the following (in thousands):



	December 31, 2011
	Amortized cost		Unrealized gains		Unrealized losses			Estimated fair value
Available for sale marketable securities:
Agency bonds⁽¹⁾	$	58,508	$	27	$	(2	)	$	58,533
Commercial paper	5,000		—		—			5,000
Certificates of deposit	3,207		4		—			3,211
Total available for sale marketable securities	66,715		31		(2		)	66,744
Trading Securities:
Equity securities - mutual funds	2,810		—		—			2,810
Cost Method Investments⁽²⁾	608		—		—			608
Total Investments	$	70,133	$	31	$	(2	)	$	70,162



	December 31, 2010
	Amortized cost		Unrealized gains		Unrealized losses			Estimated fair value
Available for sale marketable securities:
U.S. Government-backed securities	$	68,495	$	2	$	—		$	68,497
Agency bonds⁽¹⁾	5,000		—		—			5,000
Certificates of deposit	6,324		—		(2		)	6,322
Total available for sale marketable securities	79,819		2		(2		)	79,819
Trading Securities:
Equity securities - mutual funds	2,750		119		—			2,869
Cost Method Investments⁽²⁾	608		—		—			608
Total Investments	$	83,177	$	121	$	(2	)	$	83,296


⁽¹⁾	Agency bonds are securities backed by U.S. government-sponsored entities.


⁽²⁾	Investments for which it is not practical to estimate fair value are included at cost and primarily consist of investments in privately-held companies.

Investments by Balance Sheet Grouping [Table Text Block]

Investments were included in the following captions on the balance sheet as follows (in thousands):



	December 31, 2011								December 31, 2010
	Short-term investments		Long-term investments		Other assets		Total		Short-term investments		Long-term investments		Other assets		Total
Available for sale marketable securities:
U.S. Government-backed securities	$	—	$	—	$	—	$	—	$	35,989	$	32,508	$	—	$	68,497
Agency bonds	8,002		50,531		—		58,533		5,000		—		—		5,000
Commercial paper	5,000		—		—		5,000		—		—		—		—
Certificates of deposit	3,211		—		—		3,211		3,037		3,285		—		6,322
Total fixed maturity securities	16,213		50,531		—		66,744		44,026		35,793		—		79,819
Equity Securities:
Mutual funds	—		2,810		—		2,810		—		2,869		—		2,869
Cost Method Investments	—		—		608		608		—		—		608		608
Total Investments	$	16,213	$	53,341	$	608	$	70,162	$	44,026	$	38,662	$	608	$	83,296

Investments Classified by Contractual Maturity Date [Table Text Block]

Contractual maturities or expected liquidation dates of available-for-sale fixed maturity securities at December 31, 2011 were as follows (in thousands):



	Amortized Cost		Fair Value
Due in 1 year or less	$	16,207	$	16,213
Due in 1-5 years	50,508		50,531
Total	$	66,715	$	66,744