Fair Value Measurements (Tables)

12 Months Ended

Feb. 29, 2016

Fair Value Disclosures [Abstract]

Schedule Of Items Measured At Fair Value On A Recurring Basis

Items Measured at Fair Value on a Recurring Basis

	As of February 29, 2016
(In thousands)	Level 1			Level 2			Total
Assets:
Money market securities	$	439,943		$	—		$	439,943
Mutual fund investments	13,622			—			13,622
Derivative instruments	—			587			587
Total assets at fair value	$	453,565		$	587		$	454,152
Percent of total assets at fair value	99.9		%	0.1		%	100.0		%
Percent of total assets	3.1		%	—		%	3.1		%
Liabilities:
Derivative instruments	$	—		$	(8,024	)	$	(8,024	)
Total liabilities at fair value	$	—		$	(8,024	)	$	(8,024	)
Percent of total liabilities	—		%	0.1		%	0.1		%

	As of February 28, 2015
(In thousands)	Level 1			Level 2			Total
Assets:
Money market securities	$	380,100		$	—		$	380,100
Mutual fund investments	9,242			—			9,242
Derivative instruments	—			1,201			1,201
Total assets at fair value	$	389,342		$	1,201		$	390,543
Percent of total assets at fair value	99.7		%	0.3		%	100.0		%
Percent of total assets	2.9		%	—		%	3.0		%
Liabilities:
Derivative instruments	$	—		$	(1,064	)	$	(1,064	)
Total liabilities at fair value	$	—		$	(1,064	)	$	(1,064	)
Percent of total liabilities	—		%	—		%	—		%