The following represents non-cash activities and supplemental information to the consolidated statements of cash flows:



	Fiscal Years Ended January 31,
	2012			2011			2010
	(In thousands)
Non-cash operating items:
Net loss of discontinued operations	$	—		$	11,039		$	43,062
Depreciation and amortization	88,082			88,592			101,189
Impairment of goodwill and other intangible assets	—			—			3,356
Impairment of auction rate securities	—			407			6,914
Impairment of UBS put	—			6,696			6,889
Loss on extinguishment of debt	8,136			—			—
Provision for doubtful accounts	5,869			1,511			3,534
Stock-based compensation expense	30,904			39,321			44,623
Excess tax benefits from stock award plans	(847		)	(815		)	—
Operating asset write-downs	2,601			1,257			6,423
Deferred income taxes	36,945			43,011			(35,005		)
Net realized gains on sale of investments	(24,414		)	(23,810		)	(10,788		)
Equity in losses of unconsolidated affiliates, net of tax	(64		)	20			6
Gains on sale of assets	(67		)	(2,774		)	—
Provision for inventory reserves	5,114			13,038			8,397
Losses on derivative financial instruments	611			5,385			13,612
Foreign currency transaction (gains) losses	(2,332		)	(1,932		)	785
Other non-cash items, net	(1,770		)	1,017			1,321
Net non-cash operating items—continuing operations	$	148,768		$	181,963		$	194,318
Non-cash investing transactions—continuing operations:
Accrued but unpaid purchases of property and equipment	$	520		$	1,670		$	1,935
Inventory transfers to property and equipment	$	18,827		$	4,336		$	3,481
Liabilities for contingent consideration in business combinations	$	42,404		$	3,424		$	—
Non-cash financing transactions—continuing operations:
Settlement of shareholder class action lawsuit with CTI common stock	$	82,500		$	—		$	—
Cash paid during the year for interest—continuing operations	$	29,250		$	21,056		$	24,705
Cash paid during the year for income taxes—continuing operations	$	21,946		$	14,225		$	20,158