Commitments and Contingencies

12 Months Ended

Jan. 31, 2012

Commitments and Contingencies

10. Commitments and Contingencies

Leases

We lease a majority of our field sales offices and research and development facilities under non-cancelable operating leases. In addition, we lease certain equipment used in our research and development activities. This equipment is generally leased on a month-to-month basis after meeting a six-month lease minimum.

Rent expense under operating leases was as follows:

Year ended January 31,fin4	2012		2011		2010
Rent expense	$	27,535	$	29,446	$	32,283

We entered into agreements to sublease portions of our facility sites. Rental income under these agreements was as follows:

Year ended January 31,	2012		2011		2010
Rental income	$	427	$	1,691	$	1,497

Future minimum lease payments and sublease income under all non-cancelable operating leases are approximately as follows:

Fiscal years ending January 31,	Lease Payments		Sublease Income
2013	$	25,560	$	433
2014		21,232		194
2015		15,106		—
2016		10,736		—
2017		7,330		—
Thereafter		5,435		—
Total	$	85,399	$	627

Income Taxes

As of January 31, 2012, we had a liability of $34,257 for income taxes associated with uncertain income tax positions. All of these tax positions are classified as long-term liabilities in our consolidated balance sheet, as we generally do not anticipate the settlement of the liabilities will require payment of cash within the next twelve months. Further, certain liabilities may result in the reduction of deferred tax assets rather than settlement in cash. We are not able to reasonably estimate the timing of any cash payments required to settle these liabilities and do not believe that the ultimate settlement of these obligations will materially affect our liquidity.

Indemnifications

Our license and services agreements generally include a limited indemnification provision for claims from third parties relating to our intellectual property. The indemnification is generally limited to the amount paid by the customer or a set cap. As of January 31, 2012, we were not aware of any material liabilities arising from these indemnifications.

Legal Proceedings

From time to time we are involved in various disputes and litigation matters that arise in the ordinary course of business. These include disputes and lawsuits relating to intellectual property rights, contracts, distributorships, and employee relations matters. Periodically, we review the status of various disputes and litigation matters and assess our potential exposure. When we consider the potential loss from any dispute or legal matter probable and the amount or the range of loss can be estimated, we will accrue a liability for the estimated loss. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, we base accruals on the best information available at the time. As additional information becomes available, we reassess the potential liability related to pending claims and litigation matters and may revise estimates. We believe that the outcome of current litigation, individually and in the aggregate, will not have a material effect on our results of operations.

In some instances, we are unable to reasonably estimate any potential loss or range of loss. The nature and progression of litigation can make it difficult to predict the impact a particular lawsuit will have. There are many reasons that we cannot make these assessments, including, among others, one or more of the following: the early stages of a proceeding; damages sought that are unspecific, unsupportable, unexplained or uncertain; discovery not having been started or incomplete; the complexity of the facts that are in dispute; the difficulty of assessing novel claims; the parties not having engaged in any meaningful settlement discussions; the possibility that other parties may share in any ultimate liability; and/or the often slow pace of litigation.