Fair Value Measurements (Tables)

6 Months Ended

Jul. 31, 2011

Fair Value Measurements

Schedule Of Financial Instruments

	July 31, 2011
	Quoted Prices to Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value
	(In thousands)
Financial Assets:
Commercial paper (1)	$	—	$	9,380	$	—	$	9,380
Money market funds (1)		188,040		—		—		188,040
Auction rate securities		—		—		51,852		51,852
Derivative assets		—		768		—		768
Contingent consideration asset recorded for sale of business		—		—		760		760
	$	188,040	$	10,148	$	52,612	$	250,800
Financial Liabilities:
Derivative liabilities	$	—	$	1,416	$	—	$	1,416
Contingent consideration liability for business combination		—		—		2,364		2,364
	$	—	$	1,416	$	2,364	$	3,780
	January 31, 2011
	Quoted Prices to Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value
	(In thousands)
Financial Assets:
Commercial paper (1)	$	—	$	9,375	$	—	$	9,375
Money market funds (1)		186,414		—		—		186,414
Auction rate securities		—		—		72,441		72,441
Derivative assets		—		957		—		957
Contingent consideration asset recorded for sale of business		—		—		722		722
	$	186,414	$	10,332	$	73,163	$	269,909
Financial Liabilities:
Derivative liabilities	$	—	$	1,926	$	—	$	1,926
Contingent consideration liability for business combination		—		—		3,686		3,686
	$	—	$	1,926	$	3,686	$	5,612

(1) As of July 31, 2011, $163.8 million of commercial paper and money market funds were classified in "Cash and cash equivalents" and $33.6 million of money market funds were classified in "Restricted cash and bank deposits." As of January 31, 2011, $162.4 million of commercial paper and money market funds were classified in "Cash and cash equivalents" and $33.4 million of money market funds were classified in "Restricted cash and bank time deposits."

Schedule Of Changes In The Fair Value Of The Level 3 Financial Assets And Liabilities

	Level Three Financial Assets and Liabilities
	Three Months Ended July 31,											Six Months Ended July 31,
	2011						2010					2011						2010
	Asset			Liability			Asset			Liability		Asset			Liability			Asset			Liability
	(In thousands)											(In thousands)
Beginning balance	$	73,185		$	4,613		$	98,529		$	3,264	$	73,163		$	3,686		$	114,650		$	—
Sales and redemptions		(25,300	)		—			(34,286	)		—		(25,500	)		—			(54,496	)		—
Change in realized and unrealized gains included in other income, net		7,796			—			13,986			—		7,891			—			22,090			—
Change in unrealized losses included in other comprehensive income		(3,076	)		—			(8,548	)		—		(2,980	)		—			(12,517	)		—
Impairment charges		—			—			(332	)		—		—			—			(378	)		—
Contingent consideration liability recorded for business combination		—			—			—			—		—			904			—			3,224
Payments of contingent consideration		—			(2,107	)		—			—		—			(4,107	)		—			—
Change in fair value recorded in operating expenses		7			(142	)		—			42		38			1,881			—			82
Ending balance	$	52,612		$	2,364		$	69,349		$	3,306	$	52,612		$	2,364		$	69,349		$	3,306