Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Schedule Of Fair Values Of Financial Instruments Measured On Recurring Basis

The following tables present the fair values of the Company’s financial instruments that are measured at fair value on a recurring basis (in thousands):

December 31, 2013	Level 1		Level 2		Level 3		Fair Value
Cash equivalents:
Money market and other funds	101,232		—		—		101,232
Time deposits	22,773		—		—		22,773
Certificates of Deposit	14,402		—		—		14,402
Equity securities	30,047		—		—		30,047
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies	23,702		—		—		23,702
Debt securities issued by states of the United States and political subdivisions of the states	3,296		—		—		3,296
Debt securities issued by foreign governments	—		—		—		—
Corporate debt securities	66,692		—		—		66,692
Total	$	262,144	$	—	$	—	$	262,144
December 31, 2012	Level 1		Level 2		Level 3		Fair Value
Cash equivalents:
Money market and other funds	99,351		—		—		99,351
Time deposits	22,093		—		—		22,093
Certificates of Deposit	34,876		—		—		34,876
Equity securities	23,497		—		—		23,497
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies	6,450		—		—		6,450
Debt securities issued by states of the United States and political subdivisions of the states	11,658		—		—		11,658
Debt securities issued by foreign governments	3,589		—		—		3,589
Corporate debt securities	44,826		—		—		44,826
Total	$	246,340	$	—	$	—	$	246,340