Income Taxes (Tables)

12 Months Ended

Jan. 31, 2013

Notes To Financial Statements [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

Domestic and foreign pre-tax income (loss) was as follows:

Year ended January 31,	2013		2012			2011
Domestic	$	9,670	$	(62,943	)	$	(56,810	)
Foreign	131,665		145,267			88,822
Total pre-tax income	$	141,335	$	82,324		$	32,012

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision (benefit) for income taxes was as follows:

Year ended January 31,	2013			2012			2011
Current:
Federal	$	(210	)	$	475		$	(826	)
State	(65		)	137			250
Foreign	4,964			(2,731		)	9,028
Total current	4,689			(2,119		)	8,452
Deferred:
Federal and state	350			695			468
Foreign	(2,338		)	361			(5,492		)
Total deferred	(1,988		)	1,056			(5,024		)
Total provision (benefit) for income taxes	$	2,701		$	(1,063	)	$	3,428

Provision for Income Taxes

Year ended January 31,	2013			2012			2011
Federal tax, at statutory rate	$	49,467		$	28,813		$	11,204
State tax, net of federal benefit	(65		)	137			251
Impact of international operations including withholding taxes and other reserves	(50,275		)	(53,499		)	(30,308		)
Repatriation of foreign subsidiary earnings	12,661			1,364			2,364
Foreign tax credits	(8,203		)	(411		)	(241		)
Costs incurred for stock of acquired business	67			98			(3		)
Tax credits (excluding foreign tax credits)	(11,782		)	(9,677		)	(9,697		)
Amortization of deferred charge	—			323			657
Losses and tax credits for which no benefit has been realized	5,978			28,275			24,574
Stock based compensation expense	1,895			2,947			2,663
Non-deductible meals and entertainment	1,021			1,096			1,117
Other, net	1,937			(529		)	847
Provision (benefit) for income taxes	$	2,701		$	(1,063	)	$	3,428

Schedule of Total Income Tax Expense Benefit [Table Text Block]

The significant components of the deferred income tax provision (benefit) were as follows:

Year ended January 31,	2013			2012			2011
Net changes in gross deferred tax assets and liabilities	$	(8,331	)	$	(10,491	)	$	(20,381	)
Deferred tax assets reducing/(increasing) goodwill	2			(1,747		)	(5,618		)
Deferred tax assets reducing/(increasing) equity	(283		)	36			(1,178		)
Deferred tax assets increasing deferred charge and other liabilities	(87		)	(1,690		)	(305		)
Increase in beginning-of-year balance of the valuation allowance for deferred tax assets	6,711			14,948			22,458
Total deferred income tax provision (benefit)	$	(1,988	)	$	1,056		$	(5,024	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The tax effects of temporary differences and carryforwards, which gave rise to significant portions of deferred tax assets and liabilities, were as follows:

As of January 31,	2013			2012
Deferred tax assets:
Depreciation of property, plant, and equipment	$	274		$	232
Reserves and allowances	10,398			9,509
Accrued expenses not currently deductible	20,463			22,267
Stock-based compensation expense	12,394			14,902
Net operating loss carryforwards	55,612			68,746
Tax credit carryforwards	75,639			57,198
Purchased technology and other intangible assets	6,456			15,070
Deferred revenue	3,097			1,563
Other, net	7,853			8,086
Total gross deferred tax assets	192,186			197,573
Less valuation allowance	(154,695		)	(147,984		)
Deferred tax assets	37,491			49,589
Deferred tax liabilities:
Intangible assets	(9,948		)	(21,578		)
Convertible debt	(13,519		)	(15,607		)
Deferred tax liabilities	(23,467		)	(37,185		)
Net deferred tax assets	$	14,024		$	12,404

Summary of Tax Credit Carryforwards [Table Text Block]

As of January 31, 2013, we had the following foreign and U.S. Federal and state carryforwards for income tax purposes:

Credit or carryforward	As of January 31, 2013		Expiration
Federal credits and carryforwards:
Research and experimentation credit carryforward	$	60,769	Fiscal 2019 - 2033
Net operating loss carryforward	$	206,368	Fiscal 2019 - 2032
Foreign tax credits	$	12,801	Fiscal 2015 - 2023
Alternative minimum tax credits	$	2,683	No expiration
Childcare credits	$	1,513	Fiscal 2023 - 2033
State income tax credits and carryforwards:
Net operating loss carryforward	$	186,129	Fiscal 2014 - 2032
Research and experimentation	$	13,503	Fiscal 2014 - 2028
Miscellaneous	$	1,293	Various
Foreign net operating loss carryforwards	$	33,618	Generally indefinite

Unrecognized Tax Position Reconciliation [Table Text Block]

The below schedule shows the gross changes in unrecognized tax benefits associated with uncertain tax positions for the years ending January 31, 2013 and 2012:

Unrecognized tax benefits as of January 31, 2011	$	50,696
Gross increases—tax positions in prior period	647
Gross decreases—tax positions in prior period	(189		)
Gross increases—tax positions in current period	3,484
Lapse of statute of limitations	(12,084		)
Cumulative translation adjustment	(649		)
Unrecognized tax benefits as of January 31, 2012	$	41,905
Gross increases—tax positions in prior period	457
Gross decreases—tax positions in prior period	(7		)
Gross increases—tax positions in current period	4,316
Lapse of statute of limitations	(7,553		)
Cumulative translation adjustment	(336		)
Unrecognized tax benefits as of January 31, 2013	$	38,782