FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2011

FAIR VALUE MEASUREMENTS

Schedule of assets and liabilities measured at fair value on a recurring basis

		September 30, 2011
		Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
		(In thousands)
Assets:
Cash equivalents:
	Treasury and government agency money market funds	$	459,902	$	—	$	—	$	459,902
	Commercial paper		—		49,999		—		49,999
	Time deposits		—		4,700		—		4,700
Marketable securities:
	Corporate debt securities		—		67,908		—		67,908
	States of the U.S. and state political subdivisions		—		112,141		—		112,141
	Equity security		5,632		—		—		5,632
Long-term investments:
	Auction rate security		—		—		5,860		5,860
	Marketable equity securities		78,715		—		—		78,715
Total		$	544,249	$	234,748	$	5,860	$	784,857
Liabilities:
Contingent consideration arrangement		$	—	$	—	$	10,000	$	10,000
Total		$	—	$	—	$	10,000	$	10,000

		December 31, 2010
		Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
		(In thousands)
Assets:
Cash equivalents:
	Treasury and government agency money market funds	$	275,108	$	—	$	—	$	275,108
	Commercial paper		—		309,183		—		309,183
	Time deposits		—		26,050		—		26,050
Marketable securities:
	Corporate debt securities		—		238,163		—		238,163
	States of the U.S. and state political subdivisions		—		110,621		—		110,621
	U.S. Treasury securities		199,899		—		—		199,899
	Equity security		15,314		—		—		15,314
Long-term investments:
	Auction rate securities		—		—		13,100		13,100
Total		$	490,321	$	684,017	$	13,100	$	1,187,438

Schedule of changes in assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

		Three Months Ended September 30,
		2011					2010
		Auction Rate Security			Contingent Consideration Arrangement		Auction Rate Securities
		(In thousands)
Balance at July 1		$	8,680		$	10,000	$	11,255
Total net (losses) gains (realized and unrealized):
	Included in other comprehensive income		(2,820	)		—		1,095
Balance at September 30		$	5,860		$	10,000	$	12,350

		Nine Months Ended September 30,
		2011						2010
		Auction Rate Securities			Contingent Consideration Arrangement			Auction Rate Securities
		(In thousands)
Balance at January 1		$	13,100		$	—		$	12,635
Total net (losses) gains (realized and unrealized):
	Included in other comprehensive income		(2,240	)		—			(285	)
Fair value at date of acquisition			—			40,000			—
Settlements			(5,000	)		(30,000	)		—
Balance at September 30		$	5,860		$	10,000		$	12,350