Fair Value Measurements (Tables)

9 Months Ended

Nov. 30, 2013

Fair Value Measurements [Abstract]

Schedule Of Items Measured At Fair Value On A Recurring Basis

	As of November 30, 2013
(In thousands)	Level 1			Level 2			Total
Assets:
Money market securities	$	682,266		$	―		$	682,266
Mutual fund investments		5,821			―			5,821
Total assets at fair value	$	688,087		$	―		$	688,087
Percent of total assets at fair value		100.0	%		―	%		100.0	%
Percent of total assets		6.1	%		―	%		6.1	%
Liabilities:
Derivative instruments	$	―		$	2,889		$	2,889
Total liabilities at fair value	$	―		$	2,889		$	2,889
Percent of total liabilities		―	%		―	%		―	%

	As of February 28, 2013
(In thousands)	Level 1			Level 2			Total
Assets:
Money market securities	$	461,260		$	―		$	461,260
Mutual fund investments		4,024			―			4,024
Total assets at fair value	$	465,284		$	―		$	465,284
Percent of total assets at fair value		100.0	%		―	%		100.0	%
Percent of total assets		4.7	%		―	%		4.7	%
Liabilities:
Derivative instruments	$	―		$	517		$	517
Total liabilities at fair value	$	―		$	517		$	517
Percent of total liabilities		―	%		―	%		―	%