Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

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 assets or liabilities that are measured at fair value on a recurring basis (in thousands):

March 31, 2015	Level 1		Level 2		Level 3		Fair Value
Assets:
Cash equivalents:
Money market and other funds	$	190,559	$	—	$	—	$	190,559
Time deposits	—		21,673		—		21,673
Corporate commercial papers	—		17,921		—		17,921
Certificates of deposit	—		60		—		60
Equity securities	36,321		—		—		36,321
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies	—		28,866		—		28,866
Debt securities issued by states of the U.S. and political subdivisions of the states	—		2,067		—		2,067
Debt securities issued by foreign governments	—		—		—		—
Corporate debt securities	—		80,163		—		80,163
Total assets measured at fair value	$	226,880	$	150,750	$	—	$	377,630
Liabilities:
Contingent consideration	$	—	$	—	$	12,000	$	12,000
Contingent interest derivative	—		742		—		742
Total liabilities measured at fair value	$	—	$	742	$	12,000	$	12,742
December 31, 2014	Level 1		Level 2		Level 3		Fair Value
Assets:
Cash equivalents:
Money market and other funds	$	212,645	$	—	$	—	$	212,645
Time deposits	—		51,807		—		51,807
Certificates of deposit	—		65		—		65
Equity securities	36,245		—		—		36,245
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies	—		26,844		—		26,844
Debt securities issued by states of the U.S. and political subdivisions of the states	—		2,093		—		2,093
Corporate debt securities	—		91,467		—		91,467
Total assets measured at fair value	$	248,890	$	172,276	$	—	$	421,166
Liabilities:
Contingent consideration	$	—	$	—	$	15,000	$	15,000
Contingent interest derivative	—		742		—		742
Total liabilities measured at fair value	$	—	$	742	$	15,000	$	15,742

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following tables presents a reconciliation of the Company’s Level 3 financial assets or liabilities that are measured at fair value on a recurring basis (in thousands):

	Level 3			Affected line item in the Statement of Income
Balance as of December 31, 2014	$	15,000
Contingent consideration	(3,000		)	Not Applicable
Total (gains) losses reported in earnings	—
Transfers into or out of Level 3	—
Balance as of March 31, 2015	$	12,000

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following tables presents a reconciliation of the Company’s derivative instruments (in thousands):

	Amount		Affected line item in the Statement of Income
Derivative Liabilities:
Level 2:
Balance as of December 31, 2014	$	742
Total (gains) losses reported in earnings	—
Balance as of March 31, 2015	$	742