Fair Value Measurements (Tables)

6 Months Ended

Aug. 31, 2012

Fair Value Measurements [Abstract]

Schedule Of Items Measured At Fair Value On A Recurring Basis

	As of August 31, 2012
(In thousands)	Level 1			Level 2			Total
Assets:
Money market securities	$	80,965		$	―		$	80,965
Mutual fund investments		3,495			―			3,495
Derivative instruments		―			8			8
Total assets at fair value	$	84,460		$	8		$	84,468
Percent of total assets at fair value		100.0	%		―	%		100.0	%
Percent of total assets		1.0	%		―	%		1.0	%
Liabilities:
Derivative instruments	$	―		$	4,608		$	4,608
Total liabilities at fair value	$	―		$	4,608		$	4,608
Percent of total liabilities		―	%		0.1	%		0.1	%

	As of February 29, 2012
(In thousands)	Level 1			Level 2			Total
Assets:
Money market securities	$	458,090		$	―		$	458,090
Mutual fund investments		2,586			―			2,586
Derivative instruments		―			317			317
Total assets at fair value	$	460,676		$	317		$	460,993
Percent of total assets at fair value		99.9	%		0.1	%		100.0	%
Percent of total assets		5.5	%		―	%		5.5	%
Liabilities:
Derivative instruments	$	―		$	1,978		$	1,978
Total liabilities at fair value	$	―		$	1,978		$	1,978
Percent of total liabilities		―	%		―	%		―	%