Investments (Tables)

12 Months Ended

Jan. 31, 2012

Investments, Debt and Equity Securities [Abstract]

Summary Of Available-For-Sale Securities

The following is a summary of available-for-sale securities as of January 31, 2012 and 2011:

	January 31, 2012
			Included in Accumulated Other Comprehensive Income
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Cumulative Impairment Charges			Estimated Fair Value
	(In thousands)
Short-term:
Auction rate securities-Corporate issuers	$	7,500	$	34	$	—	$	(7,262	)	$	272
Total short-term investments	$	7,500	$	34	$	—	$	(7,262	)	$	272

	January 31, 2011
			Included in Accumulated Other Comprehensive Income
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Cumulative Impairment Charges			Estimated Fair Value
	(In thousands)
Short-term:
Auction rate securities-Student loans	$	71,900	$	16,044	$	—	$	(24,181	)	$	63,763
Auction rate securities-Corporate issuers	22,500		5,619		—		(19,441		)	8,678
Total short-term investments	$	94,400	$	21,663	$	—	$	(43,622	)	$	72,441

Gross Realized Gains And Losses On Investments

The gross realized gains and losses on the Company’s investments are as follows, for the fiscal years presented below:

(In thousands)	Gross Realized Gains		Gross Realized Losses
January 31, 2012	$	24,414	$	—
January 31, 2011	$	23,810	$	—
January 31, 2010	$	10,788	$	—

Components Of Other Comprehensive Income Related To Available-For-Sale Securities

The components of other comprehensive income (loss) ("OCI") related to available-for-sale securities are as follows:

	Fiscal Years Ended January 31,
	2012			2011			2010
	(In thousands )
Accumulated OCI related to available-for-sale securities, beginning of year	$	17,871		$	25,663		$	10,302
Unrealized gains on available-for-sale securities	(305		)	6,950			20,048
Reclassification adjustment for gains included in net loss	(21,329		)	(15,483		)	(3,582		)
Changes in accumulated OCI on available-for-sale securities, before tax	(21,634		)	(8,533		)	16,466
Other comprehensive income attributable to noncontrolling interest	3			26			53
Deferred income tax benefit (provision)	—			715			(1,158		)
Changes in accumulated OCI on available-for-sale securities, net of tax	(21,631		)	(7,792		)	15,361
Accumulated OCI related to available-for-sale securities, end of year	$	(3,760	)	$	17,871		$	25,663