10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2013

or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to .

Commission File Number 0-27084

CITRIX SYSTEMS, INC.

(Exact name of registrant as specified in its charter)

Delaware	75-2275152
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)
851 West Cypress Creek Road Fort Lauderdale, Florida 33309
(Address of principal executive offices, including zip code)

Registrant’s Telephone Number, Including Area Code:

(954) 267-3000

Securities registered pursuant to Section 12(b) of the Act:

Common Stock, $.001 Par Value	The NASDAQ Stock Market LLC
(Title of each class)	(Name of each exchange on which registered)

Securities registered pursuant to Section 12(g) of the Act: NONE

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.   Yes  ý    No  ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  ý

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes x   No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    x  Yes    o  No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in 12b-2 of the Exchange Act.

x  Large accelerated filer	o    Accelerated filer
o    Non-accelerated filer	o    Smaller reporting company

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  o    No  x

The aggregate market value of Common Stock held by non-affiliates of the registrant computed by reference to the price of the registrant’s Common Stock as of the last business day of the registrant’s most recently completed second fiscal quarter (based on the last reported sale price on The Nasdaq Global Select Market as of such date) was $11,044,768,169. As of February 14, 2014 there were 183,753,307 shares of the registrant’s Common Stock, $.001 par value per share, outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The registrant intends to file a definitive proxy statement pursuant to Regulation 14A within 120 days of the end of the fiscal year ended December 31, 2013. Portions of such definitive proxy statement are incorporated by reference into Part III of this Annual Report on Form 10-K.

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CITRIX SYSTEMS, INC.

TABLE OF CONTENTS

Part I:
	Item 1	Business	3
	Item 1A.	Risk Factors	14
	Item 1B.	Unresolved Staff Comments	28
	Item 2	Properties	28
	Item 3	Legal Proceedings	28
	Item 4	Mine Safety Disclosures	28
Part II:
	Item 5	Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	29
	Item 6	Selected Financial Data	30
	Item 7	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
	Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	51
	Item 8	Financial Statements and Supplementary Data	51
	Item 9	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	52
	Item 9A.	Controls and Procedures	52
	Item 9B.	Other Information	54
Part III:
	Item 10	Directors, Executive Officers and Corporate Governance	55
	Item 11	Executive Compensation	55
	Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	55
	Item 13	Certain Relationships and Related Transactions and Director Independence	55
	Item 14	Principal Accounting Fees and Services	55
Part IV:
	Item 15	Exhibits, Financial Statement Schedules	56

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PART I

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Actual results could differ materially from those set forth in the forward-looking statements. Certain factors that might cause such actual results to differ materially from those set forth in these forward-looking statements are included in Part I, Item 1A “Risk Factors” beginning on page 14.

ITEM 1. BUSINESS

General

Citrix is a leader in virtualization, networking and cloud infrastructure to enable new ways for people to work better. Citrix solutions help IT and service providers to build, manage and secure virtual and mobile workspaces that seamlessly deliver apps, desktops, data and services to virtually anyone, on any device, over any network or cloud.

We market and license our products directly to customers, over the Web, and through systems integrators, or SIs, in addition to indirectly through value-added resellers, or VARs, value-added distributors, or VADs, original equipment manufacturers, or OEMs and service providers.

Citrix is a Delaware corporation founded on April 17, 1989.

Business Overview

For over twenty five years, we have pursued our long-term vision: a world where people can experience work and life their way. We have led several waves of innovation to help our customers realize that vision. Today, mobility and cloud services offer us the greatest opportunities to continue to advance that vision.

We see very clearly three forces impacting our customers' IT organizations - consumerization, transformation and fragmentation of IT. These forces are creating two rapidly growing gaps, between the consumer computing experience and the enterprise experience, and between the speed and flexibility of the cloud versus traditional enterprise IT.

These forces are accelerating the disruption of our accustomed ways of computing and legacy platforms; but they are also enabling the reinvention of work, of computing and of business - in a concept called mobile workstyles, enabled by cloud services.

We are combining our products and technologies in the areas of mobility, desktop and application virtualization, cloud networking, cloud platforms, collaboration, and data sharing into a compelling set of solutions that power mobile workstyles and cloud services. An overview of our current products and solutions follows.

Products and Services

Our products and services target customers of all sizes, from individuals and professional consumers, to large global enterprises. Two divisions, the Enterprise and Service Provider division (formerly Infrastructure division) and the Software as a Service, or SaaS division (formerly Online Services division), administer the research and development, product marketing, and product management for our offerings. Our Enterprise and Service Provider division is comprised of Mobile and Desktop and Networking and Cloud products. Our SaaS division is comprised of Collaboration and Data products. Broadly, as an organizing principle, we group our offerings in the following main categories within our two divisions:

Mobile and Desktop

Desktop and Application Virtualization

Our Desktop and Application Virtualization products are built to transform and reduce the cost of traditional desktop management by virtualizing the desktop and applications in the datacenter and delivering a cloud-like service to users anywhere on any device.

• Citrix^® XenDesktop^®is a fully integrated desktop virtualization system that gives customers the flexibility to deliver desktops and applications as cloud services - enabling mobile workstyles and simplifying desktop management. XenDesktop breaks down traditional cost barriers by reducing server and storage costs through the use of pooled desktops that can be personalized on-demand. XenDesktop is available in multiple editions designed for different requirements, from simple VDI-only deployments to sophisticated, enterprise-class desktop and application delivery services that can meet the needs of everything from basic call center environments to high-powered graphics workstations. In XenDesktop Enterprise and Platinum editions, customers also receive the

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industry-leading Citrix XenApp to manage and mobilize Windows applications. FlexCast delivery technology powers all these options for delivering desktops and apps, for different types of users and use cases, while optimizing solution costs. XenDesktop includes HDX technologies to give users a high-definition experience - even when using multimedia, real-time collaboration, USB devices, and 3D graphics content - while consuming less bandwidth than competing solutions.

• Citrix^® XenApp^® is a widely deployed solution that allows Windows applications to be delivered as cloud services to Android and iOS mobile devices, Macs, PCs and thin clients. XenApp enables mobile workstyles by running applications in the security of the data center and using HDX technologies to deliver the user experience to any device, anywhere. XenApp can optimize the application experience for smartphones, tablets and touchscreen laptops, providing intuitive touch capabilities for the latest generation of devices. Keeping applications under the centralized control of IT administrators enhances data security and reduces the costs of managing applications on every PC. XenApp runs on all current versions of Microsoft^® Windows Server^® and tightly integrates with the Microsoft^® Desktop Optimization Pack, Microsoft App-V, and Microsoft System Center. Our joint solution lowers the cost of delivering and maintaining Windows applications for all users in the enterprise. The capabilities of XenApp are available standalone as well as with XenDesktop Enterprise and Platinum Editions.

• Citrix^® XenClient^® Enterprise is a high-performance, bare-metal hypervisor that runs directly on the client device hardware, dividing up the resources of the machine and enabling multiple operating systems to run side by side in complete isolation. XenClient is available as a free download on citrix.com.

• Citrix Receiver™ is the client side of XenApp and XenDesktop. Citrix Receiver is available as a free download from citrix.com supporting numerous types of client devices. Citrix Receiver uses the HDX technologies (discussed below) to communicate with XenApp and XenDesktop.

Mobility

Our Enterprise Mobility Management products help organizations secure and manage mobile devices along with the apps and data that reside on the mobile device. XenMobile^® allows IT to easily meet mobile device security and compliance requirements for BYO and corporate liable devices while giving users the freedom to experience work and life their way. Unlike other mobile device management, or MDM and mobile application management, or MAM products, XenMobile provides the quickest path to productivity for mobile users with the low cost of ownership:

• XenMobile^® Enterprise is a comprehensive solution to manage mobile devices, apps, and data. Users have single-click access to all of their mobile, SaaS and Windows apps from a unified corporate app store, including seamlessly integrated email, browser, data sharing and support apps. IT gains control over mobile devices with full configuration, security, provisioning and support capabilities. Flexible deployment options give IT the choice to manage XenMobile in the cloud or on-premise. In addition, XenMobile securely delivers Worx Mobile Apps, mobile apps built for businesses using the Worx App Software Development Kit, or SDK and found through the Worx App Gallery. With XenMobile, IT can meet their compliance and control needs while users get the freedom to experience work and life their way.

• XenMobile^® MDM™ provides role-based management, configuration and security of corporate and employee-owned devices. IT can enroll and manage any device, blacklist or whitelist apps, detect jailbroken devices and perform a full or selective wipe of a device that is out of compliance. Users can use any device they choose, while IT can ensure compliance of corporate assets and the security of corporate content on the device.

Networking and Cloud

Networking and Cloud includes our Cloud Networking and Cloud Platform products. Our Cloud Platform products help organizations build clouds, transform and deliver apps and desktops as cloud services. Our Cloud Networking products allow organizations to deliver cloud services to any device with high performance, security and reliability.

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Cloud Networking

• Citrix^® NetScaler^® is an all-in-one Web application delivery controller designed to make applications run five times faster by application accelerator methods such as hypertext transfer protocol, or HTTP compression and caching, ensuring application availability through the advanced L4-7 load balancer and content switching methods; increase application security with an integrated application firewall; and substantially lower costs by offloading servers to enable server consolidation.

• ByteMobile^® Smart Capacity™ solutions encompass a range of functionality that helps mobile network operators effectively address the traffic challenges and revenue opportunities of the mobile data revolution. These solutions include video optimization, web optimization, policy control, mobile analytics, adaptive traffic management, and quality of experience management.

• CitrixCloudBridge™ connects enterprise datacenters to any end point required of network branches, public and private clouds, data centers and other third party providers. The flexibility of CloudBridge allows enterprises to turn on optimization and acceleration features to ensure quality of experience for desktops, applications, video and multimedia applications for branch and mobile users. CloudBridge is optimized for virtual desktops and applications delivered by XenDesktop and XenApp.

Cloud Platform

• Citrix CloudPortal Business Manager™ is a comprehensive portal for provisioning hosted applications, desktops, services and infrastructure as a service, or IaaS, from the cloud. The multi-tenant platform automates business and operations support services thereby saving time and money while empowering customers with self-service day-to-day administration. CloudPortal simplifies cloud services by making management consistent and easy through a Web portal for on-boarding, provisioning, adds-moves-changes and usage reports.

• Citrix CloudPlatform™ powered by Apache CloudStack™, provides an advanced open source software platform to build highly scalable and reliable private and public cloud computing environments. With CloudPlatform, customers can quickly and easily build cloud services within their existing infrastructure and start realizing the benefits of this transformative service delivery model without the overhead of integration, professional services and complex deployment schedules.

• Citrix^®XenServer^® offers a complete virtualization platform enabling companies to create and manage virtual infrastructures for servers, desktops and clouds. Built on the powerful open source-based Xen hypervisor, XenServer is designed for efficient management of Windows^® and Linux^® virtual servers, delivering cost-effective server consolidation and business continuity.

Collaboration and Data

Collaboration and Data products allow organizations to enable mobile workstyles and offer employees the ability to move seamlessly across a diverse mix of devices and collaborate and share information.

Collaboration

• GoToMeeting^® is an easy-to-use, secure and cost-effective product for online meetings, sales demonstrations and collaborative gatherings. GoToMeeting users can easily host, or participate in online meetings from a Mac, PC, iPad, iPhone, Windows 8 tablet, Windows Phone or Android device. GoToMeeting comes equipped with integrated conference dial-in numbers, Voice over Internet Protocol, or VoIP and HDFaces^® high-definition video conferencing. It features an advanced, secure communication architecture that uses industry-standard secure sockets layer, or SSL, encryption.

• GoToWebinar^® is an easy-to-use, do-it-yourself webinar product, allowing organizations to increase market reach and effectively present online to geographically dispersed audiences. GoToWebinar users can easily host, attend or participate in a webinar session from a Mac, PC or mobile device without significant training or IT support; attendees can join from a Mac, PC, iPad, iPhone or Android device. GoToWebinar includes such features as full-service registration with real-time reports; customized branding; automated email templates; polling and survey capabilities; a webinar dashboard for monitoring attendance and participation; easy presenter controls for changing presenters; high-definition webcam sharing for up to 6 organizers and panelists and VoIP and toll-based phone options.

• Podio™ is a tool for small to medium-sized businesses, or SMBs, to organize and track their projects and everyday work. Podio workspaces enable teams to structure their work with Podio Apps that they build themselves, to suit their processes. These workspaces are designed to increase transparency, and foster greater accountability, knowledge sharing and employee engagement. Podio works seamlessly on both web and mobile.

• GoToTraining® is an easy-to-use and secure online training product that enables individuals and enterprises to provide interactive training sessions to customers and employees in any location. GoToTraining users can easily create

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curriculums for their students from a Mac or PC without significant training or IT support; attendees can join from a Mac, PC, iPad, or iPhone. GoToTraining includes such features as full-service registration with real-time reports; materials; automated email templates; polling and survey capabilities as well as testing; and high-definition webcam sharing for up to 6 participants and VoIP and toll-based phone options.

• GoToMyPC® is an online service that enables mobile workstyles by providing secure, remote access to a PC or Mac from virtually any Internet-connected computer, as well as from supported iOS or Android mobile devices, such as the iPad, iPhone, Kindle Fire and, Samsung Galaxy. GoToMyPC sets up easily with a secure encrypted connection and enables individuals to remotely use any resources hosted on their desktop just as though they were sitting in front of it.

• GoToAssist® provides easy-to-use cloud-based IT support solutions to deliver maximum uptime for people and their computers, mobile devices and apps. GoToAssist's integrated toolset is built specifically for IT managers, consultants and managed service providers.

Data Sharing

• ShareFile® is a secure, cloud-based file sharing and storage solution built for business. ShareFile enables business professionals to manage and share data securely and easily and solves the mobility and collaboration needs of users. It replaces insecure and inconsistent methods of transferring large and confidential files including email attachment, FTP and consumer cloud storage services. ShareFile protects client data throughout the storage and transfer process, using up to 256-bit encryption and SSL or Transport Layer Security, or TLS encryption protocols for transfer and 256-bit encryption for files at rest on ShareFile servers. Password protection and granular access to folders and files stored with ShareFile ensure that data remains in control of the company. With ShareFile Enterprise, organizations can manage their data on premises in customer managed StorageZones, choose Citrix managed secure cloud options or create a mix of both.

License Updates and Maintenance

We provide several ways for customers to receive upgrades, support and maintenance for products.

• Subscription Advantage provides customers access to the latest product version updates when made available during their membership term. These updates include major changes to the product architecture and updates to the feature set of a product. Citrix software products eligible for participating in the Subscription Advantage program come with the first year of Subscription Advantage embedded into the cost of the product.

• Technical Support Services are specifically designed to address the variety of challenges facing our customers’ ITenvironments. We offer several support-level options, global coverage and personalized relationship management. Post-sale technical support is offered through Citrix-operated support centers located in the United States, Ireland, Japan, Hong Kong, Australia, Singapore and India. In most cases, we provide technical advice to channel distributors and entities with which we have a technology relationship, who act as the first line of technical assistance for end-users.

• Premier Support provides 24x7x365 unlimited-incidents worldwide support for Citrix software products covered by Subscription Advantage. Available at the time of product purchase or with a Subscription Advantage renewal, Premier Support is offered on a per license basis.

• Hardware Maintenance provides technical support from Citrix experts to diagnose and resolve issues encountered with appliances. It also offers the latest software upgrades and replacement of malfunctioning appliances to minimize organizational downtime. Additionally, dedicated account management is available as an add-on to the program for an even higher level of service.

• Software Maintenance combines 24x7x365 unlimited worldwide support with product version upgrades when available. The first year of Software Maintenance is required with certain corresponding product purchases.

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Professional Services

We provide a portfolio of professional services to our business partners and customers to manage the quality of implementation, operation and support of our solutions. These services are available for additional fees paid on an annual or transactional basis.

• Citrix Consulting helps support the successful implementation of Citrix technologies and solutions through the use of proven methodologies, tools and published best practices. Citrix Consulting focuses on strategic engagements with enterprise customers who have complex, mission-critical, or large-scale Citrix deployments. These engagements are typically fee-based on-site engagements for the most challenging projects in scope and complexity, requiring consultants who are uniquely qualified with project methodology and Citrix product expertise. Citrix Consulting is also responsible for the development of best practice knowledge that is disseminated to businesses with which we have a business relationship and end-users through training and written documentation. Leveraging these best practices enables our integration resellers to provide more complex systems, reach new buyers within existing customer organizations and provide more sophisticated system proposals to prospective customers. Citrix Consulting has worked with Fortune Global 500 companies, technology providers, and government organizations to deliver solutions that achieve their unique technical and business objectives.

• Product Training & Certification helps enable our customers and partners to be successful with Citrix and achieve their business objectives faster. Authorized Citrix training is available when and how it is needed. Traditional or virtual instructor-led training offerings feature Citrix Certified Instructors delivering training in a classroom or remote setting at one of approximately 400 Citrix Authorized Learning Centers™, or CALCs, worldwide. CALCs are staffed with instructors that have been certified by us and teach their students using Citrix-developed courseware. Self-Paced Online offerings, available to students 24 hours a day, seven days a week, provide technically robust course content without an instructor and include hands-on practice via virtual labs. Certifications validate key skills and are available for administrators, engineers, architects and sales professionals.

Technology

Our products are based on a full range of industry-standard open source technologies. In addition, certain of our products are also based on our proprietary technologies.

• Citrix HDX™ Technologies is a family of innovations that optimize the end-to-end user experience in virtual desktop and virtual application environments. These technologies incorporate our ICA protocol, which consists of server- and client-side technology that allows graphical user interfaces to be transmitted securely over any network, and include HDX Broadcast, MediaStream, Realtime, Mobile, Plug-n-Play RichGraphics, WAN Optimization and Adaptive Orchestration features which work together to provide a high-definition user experience across a wide array of applications, devices and networks.

• Citrix FlexCast^® technologies combine a range of desktop and application virtualization innovations that work in concert to enable enterprise IT departments the ability to support a wide range of use cases.

• Citrix personalization technologies increase desktop virtualization adoption by providing a personalized end-user experience while optimizing resource usage in the data center and overall total cost of ownership, or TCO.

• NetScaler^® Software Packet Engine, or the Packet Engine, forms the foundation of our NetScaler line of products. The Packet Engine allows high-performance networking and packet processing without the need for special purpose hardware.

• NetScaler^® nCore^™ Technology is an architecture which enables execution of multiple Packet Engines in parallel. nCore technology allows the distribution of packet flows across multiple central processing unit cores to achieve efficient, high-performance parallel processing across multiple Packet Engines. The new architecture incorporates innovations in flow distribution and state sharing and provides for efficient execution across Packet Engines.

• ByteMobile^® Adaptive Traffic Management Systemcombines functions such as video and web optimization, caching, policy control, and reporting and analytics into a single centrally managed element. These functions are performed based on dynamic awareness of mobile carrier traffic conditions and also based on User Experience Indexing (UXI), where the quality of a single mobile subscriber’s data experience can be tracked and enhanced by automated modifications made to network performance.

• Citrix XenMobile^®is our foundational technology that delivers a holistic mobile computing platform. Its main components include MDM, MAM and a set of mobile applications including secure email, web browsing, and data sharing on a host of mobile platforms including iOS, Android and Windows mobile.

• Citrix CloudPortal^™Business Manager is a service aggregation, catalog, billing, and chargeback solution that enables service providers and IT organizations to offer cloud services.

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• Citrix Internet Overlay Platform is our foundational technology for GoToMeeting, GoToWebinar, GoToTraining and GoToAssist. The platform implements one of the largest multicast overlay data networks in the world using the Internet. It provides proprietary screen-sharing technology that separately optimizes screen transmission for each endpoint device (such as a remote PC during an online meeting or remote access session).

• Citrix PSTN/VoIP Bridge is core technology that allows the seamless integration of Public Switched Telephone Network/Voice over Internet Protocol, or PSTN/VoIP, in our products that use our audio conferencing.

• HDFaces^® in GoToMeeting, GoToWebinar and GoToTraining delivers high-definition video conferencing and one-to-many video streaming over the public Internet. It includes proprietary network transport protocols and transcoding software that optimize video quality for each endpoint device.

Innovation is a core Citrix competency. We have many additional unique inventions that are important enablers of our continued leadership in desktop and application virtualization, mobility, cloud networking, cloud platforms, collaboration and data sharing.

Customers

We believe that the primary IT buyers involved in decision-making related to our solutions are the following:

• Strategic IT Executives including chief information officers, chief technology officers, chief information security officers and vice presidents of infrastructure, who have responsibility for ensuring that IT services are enablers to business initiatives and are delivered with the best performance, availability, security and cost.

• Desktop Operations Managers who are responsible for managing Windows Desktop environments including corporate help desks.

• IT Infrastructure Managers who are responsible for managing and delivering Windows-based applications.

• Directors of Messaging and Mobility, who are, respectively, responsible for Exchange and defining mobile strategies and solutions for securing and managing mobile devices including their content and applications.

• Network Architects who are responsible for delivering Web-based applications who have primary responsibility for the WAN infrastructure for all applications.

• Server Operations Managers who are responsible for specifying datacenter systems and managing daily operations.

• Individuals and prosumers, who are responsible for choosing personal solutions and helping small businesses select simple-to-use computing solutions.

• Small business owners who are responsible for choosing the systems needed to support their business goals, such as SaaS.

• Line of business and functional executives that determine the need for our SaaS offerings at certain enterprises.

• Chief technology officer office and engineering department (managers, architects, etc.) for telecommunications service providers are the primary buyers of our ByteMobile Smart Capacity solutions.

• Chief information officer office and engineering departments within service providers, using Citrix product to deliver desktops and applications as hosted cloud services.

The IT buyers for our products include a wide variety of industries including those in financial services, technology, healthcare, education, government and telecom.

We offer perpetual and term-based software licenses for our products, along with annual subscriptions for software updates, technical support and SaaS. Perpetual licenses allow our customers to use the version of software initially purchased into perpetuity, while term-based licenses are limited to a specified period of time. Software update subscriptions give customers the right to upgrade to new software versions if and when any updates are delivered during the subscription term. Perpetual license software products come primarily in electronic-based forms and, in selected markets, we offer pre-packaged shrink-wrap products to meet local customer needs. Our SaaS products are accessed over the Internet for usage during the subscription period. Our hardware appliances come pre-loaded with software for which customers can purchase perpetual licenses and annual support and maintenance.

Technology Relationships

We have a number of technology relationships in place to accelerate the development of existing and future products and go-to-market. These relationships include cross-licensing, OEM, joint reference architectures, and other arrangements that result in better solutions for our customers.

Microsoft

We have collaborated with Microsoft on various technologies, including terminal services, cloud networking and virtualization. Since our inception, we have had a number of license agreements with Microsoft, including patent cross-licenses and source code licensing agreements that have provided us access to source code for versions of Microsoft Windows Server. These agreements are not required for our software development processes on Windows Server and do not provide for

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payments to or from Microsoft. Our two companies have a long-standing go-to-market partnership, and that continues to grow as we introduce more joint solutions in new areas such as XenDeskop on Azure.

Cisco

We have a technology collaboration with Cisco Systems, Inc., or Cisco, to develop and deliver solutions that help customers simplify and accelerate large-scale desktop virtualization deployments, including high-definition virtual desktops and applications and improved end-user experiences, over a highly secure Citrix^® HDX-enabled Cisco network. We license the specifications of ICA® to Cisco as part of this agreement.

In October 2012, Cisco and Citrix announced an expanded relationship in three strategic areas: cloud networking, cloud orchestration and mobile workstyles. In 2013, we delivered solutions in all three areas. Cisco introduced an OEM version of our Netscaler Application Delivery Controller technology, called Citrix Netscaler 1000V, which is sold as a part of their Cloud Virtual Network Services architecture platform. We are also delivering tight integration between appliance versions of Citrix NetScaler and Cisco’s higher end Nexus 7000 product line. Also announced by Cisco this year is a new joint Desktop as a Service solution offering targeted at service provider companies.

Additional Relationships

Over the past year, our partners have expanded their focus on the broad range of Citrix products. Some examples include Alcatel-Lucent, who OEMs Citrix CloudPlatform as a part of their CloudBand solution, and Dell who OEMs XenDesktop, for their DVS-Enterprise solution. HP, IBM and Fujitsu also have multiple offerings in the market with XenDesktop, XenMobile and NetScaler. We have also built relationships with NetApp and CA Technologies that complement the benefits provided by Citrix XenServer, XenDesktop, XenApp and CloudPlatform. Amazon now re-sells Citrix NetScaler, Citrix CloudBridge, and Citrix XenMobile in its Amazon Web Services, or AWS Marketplace, and we collaborate to allow customers to run XenDesktop on the AWS platform.

Through our Citrix Ready program, more than 21,000 products have been verified to work with Citrix technologies. In addition, numerous partners proactively incorporate Citrix products and technologies such as Receiver, XenServer, XenDesktop, XenClient, XenApp, NetScaler, CloudGateway, and HDX (ICA) technologies into their customer offerings. Our HDX and Receiver technologies are often included with or offered for thin clients, industry-standard servers and mobile devices, such as Apple's iPhone and iPad, Windows Mobile, Blackberry and Google Android devices. Licensees include Dell, Samsung, Fujitsu and Hewlett Packard, among others.

Research and Development

We focus our research and development efforts on developing new products and core technologies in our core markets and to further enhancing the functionality, reliability, performance and flexibility of existing products. We solicit extensive feedback concerning product development from customers, both directly from and indirectly through our channel distributors.

We believe that our software development teams and core technologies represent a significant competitive advantage for us. Included in the software development teams is a group focused on research activities that include prototyping ways to integrate emerging technologies and standards into our product offerings, such as emerging Web services technologies, management standards and Microsoft's newest technologies. Many groups within the software development teams have expertise in Extensible Markup Language, or XML, based software development, integration of acquired technology, multi-tier Web-based application development and deployment, SSL secure access, hypervisor technologies, cloud technologies, networking technologies, VoIP-based audio technology, Web-based video technology and building SaaS. We incurred research and development expenses of approximately $516.3 million in 2013, $450.6 million in 2012 and $380.7 million in 2011. In addition to internal research and development, Citrix also supports an eco-system of early stage companies via our Startup Accelerator program which provides seed capital for new technologies.

Sales, Marketing and Services

We market and license our products and services through multiple channels worldwide, including thousands of Value-Added Resellers known as Citrix Solution Advisors™, Value-Added Distributors, hosted Service Providers, System Integrators, or SIs, Independent Software Vendors, or ISVs, direct over-the-Web and OEMs. These distribution channels are managed by our worldwide sales and services organization. We provide training and certification opportunities to our channel partners and consultants for the full-range of Citrix products, solutions and services through our Citrix Partner Network. In addition, our SaaS division provides our collaboration and data sharing offerings through direct corporate sales, Solution Advisors, and direct over-the-Web through our websites.

In 2013, we made global partner program changes to help Solution Advisors develop new opportunities and specializations, engage at a deeper level with customers and lead in mobile workstyle solutions and cloud services. The changes included: differentiated Citrix Advisor Rewards by partner level; Citrix Opportunity Registration discounts for cloud

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networking deals; clear, published criteria for achieving Gold and Platinum status; and refreshed certification requirements paired with no cost training subscriptions for Gold and Platinum levels to expedite acquisition of the latest knowledge and skills. Citrix Advisor Rewards™, is an innovative influencer program that rewards our partners for registering projects and providing value-added selling even if they do not fulfill the product. Solution Advisors who achieve Gold or Platinum status through sales volume and training investments earn higher rewards. Introduced in 2013, Citrix Opportunity Registration provides qualified partners with a competitive edge in cloud networking through an additional upfront discount on the opportunities they register. We continued to focus on increasing the productivity of our existing partners and building capacity through targeted recruitment, introducing programs to increase partner mindshare, limit channel conflict and increase partner loyalty to us.

As Citrix continues to lead with cloud services, we have been cultivating a global base of over 2,600 partners within the Citrix Service Provider program. These partners, consisting of managed service providers, IT hosting companies and Telcos, license Citrix desktop, application, networking and MDM products on a monthly subscription basis. With these technologies partners then create various vertically differentiated offers of their own, consisting of cloud-hosted applications and cloud-hosted desktops, that they then resell both to SMBs and to enterprise IT. Besides supplying technology, Citrix is actively engaged in assisting these partners develop their hosted businesses by supplying business and marketing assistance.

For all of our channels, we regularly take actions to improve the effectiveness of our partner programs and strengthen our channel relationships, including managing non-performing partners, adding new partners with expertise in selling into new markets and forming additional strategic global and national partnerships. SI and ISV engagement continues to be a substantial part of our strategy in the large enterprise and government markets. The SI program includes organizations such as Accenture, Atos Origin, Computer Sciences Corporation, Dimension Data, Hewlett Packard, Fujitsu, IBM Global Services, Wipro and TATA Consultancy Services Limited, among others. The ISV program has a strong representation from targeted industry verticals such as healthcare, financial services and telecommunications. Members in the ISV program include Cerner Corporation, Epic Systems Corporation, McKesson Corporation, and Siemens Medical Health Solutions, among many others.

Our corporate marketing organization provides sales and industry event support, demand generation, web and social marketing, sales tools and collateral, advertising, direct mail, industry analyst relations and public relations coverage to our indirect channels to aid in market development and in attracting new customers. Our partner development organization actively supports our partners to improve their commitment and capabilities with Citrix solutions. Our customer sales organization consists of field-based systems sales engineers and corporate sales professionals who work directly with our largest customers, and coordinate integration services provided by our partners. Additional sales personnel, working in central locations and in the field, provide additional support including recruitment of prospective partners and technical training with respect to our products.

Although we have thousands of partnerships, one distributor, Ingram Micro, accounted for 14% of our net revenues in 2013, 16% of our total net revenues in 2012 and 17% of our total net revenues in 2011. Our distributor arrangements with Ingram Micro consist of several non-exclusive, independently negotiated agreements with its subsidiaries, each of which covers different countries or regions. Each of these agreements is separately negotiated and is independent of any other contract (such as a master distribution agreement), one of which was individually responsible for over 10% of our total net revenues in each of the last three fiscal years. In addition, there was no individual VAR that accounted for over 10% of our total net revenues in 2013, 2012 and 2011.

We are not obligated to accept product returns from our channel distributors under any conditions, unless the product item is defective in manufacture. See “Management's Discussion and Analysis of Financial Condition and Results of Operations-Critical Accounting Policies and Estimates” and Note 2 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for information regarding our revenue recognition policy.

International revenues (sales outside the United States) accounted for approximately 45.4% of our net revenues for the year ended December 31, 2013, 45.3% of our net revenues for the year ended December 31, 2012 and 43.2% of our net revenues for the year ended December 31, 2011. For detailed information on our international revenues, please refer to Note 11 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Segment Revenue

Our revenues are derived from our Enterprise and Service Provider division products, which primarily include Mobile and Desktop products, Networking and Cloud products and related license updates and maintenance, support and professional services and from our SaaS division's Collaboration and Data products. The Enterprise and Service Provider division and the SaaS division constitute our two reportable segments. See Note 11 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

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Operations

For our Cloud Networking products, including NetScaler and Cloud Bridge, we use independent contractors to provide a redundant source of manufacture and assembly capabilities. Independent contractors provide us with the flexibility needed to meet our product quality and delivery requirements. We have manufacturing relationships that we enter into in the ordinary course of business, primarily with Flextronics and IBM (primarily for ByteMobile Smart Capacity) under which we have subcontracted the majority of our hardware manufacturing activity, generally on a purchase order basis. These third-party contract manufacturers also provide final test, warehousing and shipping services. This subcontracting activity extends from prototypes to full production and includes activities such as material procurement, final assembly, test, control, shipment to our customers and repairs. Together with our contract manufacturers, we design, specify and monitor the tests that are required to meet internal and external quality standards. Our contract manufacturers manufacture our products based on forecasted demand for our products. Each of the contract manufacturers procures components necessary to assemble the products in our forecast and test the products according to our specifications. We are dual-sourced on our components, however, in some instances, those sources may be located in the same geographic area. Accordingly, if a natural disaster occurred in one of those areas, we may need to seek additional sources. Products are then shipped to our channel distributors, VARs or end-users. If the products go unsold for specified periods of time, we may incur carrying charges or obsolete material charges for products ordered to meet our forecast or customer orders. In 2013, we did not experience any material difficulties or significant delays in the manufacture and assembly of our products.

We control all purchasing, inventory, scheduling, order processing and accounting functions related to our operations. For our software products, production, warehousing and shipping are performed by our independent contractors HP, Ireland and Digital River. Master software CD-ROMs, development of user manuals, packaging designs, initial product quality control and testing are primarily performed at our facilities. In some cases, independent contractors also duplicate CD-ROMs, print documentation and package and assemble products to our specifications.

While it is generally our practice to promptly ship product upon receipt of properly finalized purchase orders, we sometimes have orders that have not shipped upon receipt of a purchase order. Although the amount of such product license orders may vary, the amount, if any, of such orders at the end of a fiscal year is not material to our business. We do not believe that backlog, as of any particular date, is a reliable indicator of future performance.

We believe that our fourth quarter revenues and expenses are affected by a number of seasonal factors, including the lapse of many corporations' fiscal year budgets and an increase in amounts paid pursuant to our sales compensation plans due to compensation plan accelerators that are often triggered in the fourth quarter. We believe that these seasonal factors are common within our industry. Such factors historically have resulted in first quarter revenues in any year being lower than the immediately preceding fourth quarter. We expect this trend to continue through the first quarter of 2014. In addition, our European operations generally generate lower revenues in the summer months because of the generally reduced economic activity in Europe during the summer. This seasonal factor also typically results in higher fourth quarter revenues.

Competition

We sell our products in intensely competitive markets. Some of our competitors and potential competitors have significantly greater financial, technical, sales and marketing and other resources than we do. As the markets for our products and services continue to develop, additional companies, including those with significant market presence in the computer appliances, software and networking industries, could enter the markets in which we compete and further intensify competition. In addition, we believe price competition could become a more significant competitive factor in the future. As a result, we may not be able to maintain our historic prices and margins, which could adversely affect our business, results of operations and financial condition. See “-Technology Relationships” and Part I-Item 1A entitled “Risk Factors” included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Mobile and Desktop

Our Desktop and Application Virtualization products are based on an alternative technology platform the success of which will depend on organizations and customers perceiving technological and operational benefits and cost savings associated with adopting desktop and application virtualization solutions. Our primary competition in this market is the existing IT desktop management practice of manually configuring physical desktops, which is time-consuming, expensive and subject to inconsistency. We also face numerous competitors that provide automation of these processes and alternative approaches, including VMware's Horizon View product and Oracle Corporation, or Oracle's, broad virtualization stack which is a feature of its operating system and management software. We believe XenDesktop and XenApp give Citrix a competitive advantage by providing customers multiple ways to virtualize and deliver desktops and or apps with one, integrated virtualization system and delivering a higher performance user experience.

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Our Enterprise Mobility Management product line, XenMobile, competes with VMware, MobileIron, Good Technology and other smaller competitors. We believe we differentiate ourselves from these competitors by providing the most complete solution on the market, with MDM, MAM and core mobile applications, including secure mobile email, calendar and browser.

We also see competition from competitors that are combining mobile and desktop technologies. VMware is an example with their Horizon Suite, positioned as a platform for workforce mobility. We believe the Citrix solution, enabled by the Xen suite of products, is the best solution available today that can securely deliver a mobile workspace - all Windows, Web, SaaS and native mobile applications, data and virtual desktops - to any device, anywhere. Further, we believe that our end-user experience has a competitive edge when compared to the alternative solutions due to the intuitiveness and self-service features of our offering.

Networking and Cloud

Our NetScaler products compete against other established competitors, including, F5 Networks, Inc., or F5, and to a lesser extent, A10 Networks. Both compete with us for traditional enterprise sales opportunities, while F5 is our principal competitor in the Internet-centric market segment. We continue to enhance NetScaler's feature capability and aggressively market NetScaler to our existing customer base as well as expanding into telco and cloud provider markets.

Our ByteMobile Smart Capacity product's primary competition is a network engineering organization that elects not to employ the type of optimization solution we offer. In addition, ByteMobile Smart Capacity competes with single-purpose or limited-purpose vendors that address a portion of what our product offers and may or may not partner with other vendors to complete their offerings. Our ByteMobile Smart Capacity product is a market share leader in the video and web optimization market, with a large installed base of tier-one mobile network operator customers. We believe that ByteMobile Smart Capacity has competitive advantages both in core optimization technology and in its ability to consolidate disparate hardware and software functionality into a single managed network element.

Competition for CloudBridge, comes in the form of alternative approaches to making the cloud a secure extension of a company's on-premise enterprise network, such as WAN optimization, Internet protocol security, or IPSec, or multi-protocol label switching, or MPLS, network solutions, among others. F5 is a key competitor in this space. With regards to WAN optimization, CloudBridge also competes with Cisco and Riverbed Technology, Inc., or Riverbed. Cisco has the largest market share, benefiting from its leadership in the networking market. Riverbed is a less established company than Citrix, but has the advantage of being focused solely on WAN optimization. We believe CloudBridge is a more feature-rich solution than the other alternatives and provides superior flexibility as part of NetScaler.

VMware is also the main competitor for our CloudPlatform product, which is an advanced platform for building highly scalable and reliable cloud computing environments, and our CloudPortal product, which is a comprehensive portal for provisioning hosted applications, desktops, services and IaaS. Unlike VMware's products, our CloudPlatform and CloudPortal products draw on the successful models and experience of large, public cloud implementations and apply them to enterprise, private clouds. The differentiation and experience of our products is expanded when coupled with our NetScaler and XenServer products, both of which are used in large, public cloud implementations. Additionally, OpenStack, an open source project, provides an alternative solution to our CloudPlatform product. We believe CloudPlatform has a competitive advantage, as it is production ready for cloud deployment.

In the server virtualization market, we compete directly with VMware, which was first to market with this technology and is widely regarded as the market leader. In addition, we also compete with Microsoft's Windows Server 2012 with Hyper-V. Microsoft first entered this market in 2008 and has since established its position as a leader in this space. To a lesser extent, and mostly only in the niche technology areas of test and development, we compete with RedHat, who recently expanded into this market. We believe XenServer, our server virtualization product, has features that are competitive with VMware's ESX Server in terms of performance, scalability and other enterprise-class capabilities. XenServer is offered as a free download, which significantly increases the reach of server virtualization to customers of all sizes and geographies. We monetize the XenServer product line by selling maintenance and updates, which aligns with our CloudPlatform go-to-market strategy.

Collaboration and Data

Our products for collaboration continue to maintain solid leadership positions in extremely competitive markets, particularly among, SMBs. We differentiate our SaaS offerings by designing simple, secure, reliable and cost-efficient products that deliver a superior customer experience. Our competitors range from large, established technology firms to small, Internet-based startups.

In Collaboration, we compete primarily with Cisco WebEx, Microsoft Lync and Skype, and conferencing call solutions from Intercall, PGi, AT&T and Verizon. Additionally we compete with freemium products such as Logmein's Join.me and

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Google's Google + Hangouts. Our GoToMeeting, GoToWebinar and GoToTraining products have proven to be competitive based on ease-of-use and the All You Can Meet® pricing model, combined with built-in VoIP and toll-based PSTN audio services. We further differentiate our collaboration products by integrating OpenVoice toll-free seamlessly with the built-in VoIP and toll audio services and having purpose-built solutions for marketing and training use cases. We believe these features give us competitive advantage among individual, prosumer and SMB customers.

We have been a market leader with our GoToMyPC product for many years. Our direct competition includes LogMeIn, Inc., or LogMeIn, free solutions such as Microsoft's Live Mesh and those from many Internet startups. In addition, new remote access features in desktop operating systems like Microsoft Windows and Macintosh OSX provide alternatives to our solution. We endeavor to differentiate our products by continuing our focus on security, ease-of-use and support for multiple desktop operating systems.

Our GoToAssist product has achieved a large market share for Web-based clientless remote support. This product includes a version purpose-built for individual users, consultants and small businesses, positioning Citrix as the only provider of remote support solutions for all segments of the market. In remote support, we compete with Cisco's WebEx and LogMeIn.

In the data sharing market, ShareFile's direct competition includes Dropbox, Inc., Box, Inc. and HighTail, Inc. (formerly YouSendIt), as well as legacy solutions like traditional file transfer protocol, or FTP, in the SMB market. Many of these competitors have strong brand recognition through their consumer and free versions of their products. However, we believe ShareFile offers a superior solution as it is built specifically for the needs of businesses. In the Enterprise segment, there are fewer direct competitors to the ShareFile product. Increased competition is anticipated as large enterprises need to deploy secure data syncing and sharing solutions for a growing mobile workforce. We believe that Citrix's strong reputation in the Enterprise market, along with ShareFile's integration into Citrix products such as Receiver and XenMobile, and our unique ability to store data on-premise or in the Cloud, will be a key differentiator.

Proprietary Technology

Our success is dependent upon certain proprietary technologies and core intellectual property. We have been awarded numerous domestic and foreign patents and have numerous pending patent applications in the United States and foreign countries. Our technology is also protected under copyright laws. Additionally, we rely on trade secret protection and confidentiality and proprietary information agreements to protect our proprietary technology. We have established proprietary trademark rights in markets across the globe, and own trademark registrations and pending registration applications in the United States and other countries, including ByteMobile^®, Citrix^®, Citrix Access Gateway™, Citrix Receiver™, Citrix Synergy™, CloudGateway™, CloudPortal™, GoToMeeting^®, GoToWebinar^®, NetScaler^®, Podio™, ShareFile^®, Xen^®, XenApp^®, XenClient^®, XenDesktop^®, XenMobile^® and XenServer^®. While our competitive position could be affected by our ability to protect our proprietary information, we believe that because of the rapid pace of technological change in the industry, factors such as the technical expertise, knowledge and innovative skill of our management and technical personnel, our technology relationships, name recognition, the timeliness and quality of support services provided by us and our ability to rapidly develop, enhance and market software products could be more significant in maintaining our competitive position. See Part I-Item 1A entitled “Risk Factors” included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Available Information

Our Internet address is http://www.citrix.com. We make available, free of charge, on or through our website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements and any amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act as soon as reasonably practicable after such material is electronically filed with or furnished to the Securities and Exchange Commission. The information on our website is not part of this Annual Report on Form 10-K for the year ended December 31, 2013.

Employees

As of December 31, 2013, we had 9,166 employees. We believe our relations with employees are good. In certain countries outside the United States, our relations with employees are governed by labor regulations that provide for specific terms of employment between our company and our employees.

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ITEM 1A. RISK FACTORS

Our operating results and financial condition have varied in the past and could in the future vary significantly depending on a number of factors. From time to time, information provided by us or statements made by our employees contain “forward-looking” information that involves risks and uncertainties. In particular, statements contained in this Annual Report on Form 10-K for the year ended December 31, 2013, and in the documents incorporated by reference into this Annual Report on Form 10-K for the year ended December 31, 2013, that are not historical facts, including, but not limited to, statements concerning the impact of the global economy and uncertainty in the IT spending environment; the success and growth of our product lines, including transitions in the markets for our desktop virtualization and collaboration products and services; our ability to develop and commercialize new products and services, including enterprise mobility and cloud platform products, while growing our established virtualization, networking and collaboration products and services; disruptions due to changes and transitions in key personnel and succession risks, including but not limited to risks related to the timing and outcome of our CEO search; the introduction of new products by competitors or the entry of new competitors into the markets for our products and services; changes in our revenue mix towards products and services with lower gross margins; seasonal fluctuations in our business; failure to execute our sales and marketing plans; failure to successfully partner with key distributors, resellers, system integrators, service providers and strategic partners and the company's reliance on and the success of those partners for the marketing and distribution of our products; our ability to maintain and expand our business in small sized and large enterprise accounts; the size, timing and recognition of revenue from significant orders; the success of investments in our product groups, foreign operations and vertical and geographic markets; our ability to make suitable acquisitions on favorable terms in the future; risks associated with acquisitions, including failure to further develop and successfully market the technology and products of acquired companies, failure to achieve or maintain anticipated revenues and operating performance contributions from acquisitions, which could dilute earnings, the retention of key employees from acquired companies, difficulties and delays integrating personnel, operations, technologies and products, disruption to our ongoing business and diversion of management's attention from our ongoing business; the recruitment and retention of qualified employees; risks in effectively controlling operating expenses, including failure to manage untargeted expenses; the effect of new accounting pronouncements on revenue and expense recognition; the risks associated with securing data and maintaining security of our networks and customer data stored by our services; failure to comply with federal, state and international regulations; litigation and disputes, including challenges to our intellectual property rights or allegations of infringement of the intellectual property rights of others; the inability to further innovate our technology or enter into new businesses due to the intellectual property rights of others; changes in our pricing and licensing models, promotional programs and product mix, all of which may impact revenue recognition; charges in the event of the impairment of acquired assets, investments or licenses; international market readiness, execution and other risks associated with the markets for our products and services; unanticipated changes in tax rates, non-renewal of tax credits or exposure to additional tax liabilities; risks of political and social turmoil constitute forward-looking statements and are made under the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements are neither promises nor guarantees. Our actual results of operations and financial condition could vary materially from those stated in any forward-looking statements. The following factors, among others, could cause actual results to differ materially from those contained in forward-looking statements made in this Annual Report on Form 10-K for the year ended December 31, 2013, in the documents incorporated by reference into this Annual Report on Form 10-K or presented elsewhere by our management from time to time. Such factors, among others, could have a material adverse effect upon our business, results of operations and financial condition. We caution readers not to place undue reliance on any forward-looking statements, which only speak as of the date made. We undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made.

RISKS RELATED TO OUR BUSINESS AND INDUSTRY

Our business could be adversely impacted by conditions affecting the information technology market.

The demand for our products and services depends substantially upon the general demand for business-related computer appliances and software, which fluctuates based on numerous factors, including capital spending levels, the spending levels and growth of our current and prospective customers, and general economic conditions. Moreover, the purchase of our products and services is often discretionary and may involve a significant commitment of capital and other resources. Future economic projections for the information technology sector are uncertain and highlight an industry in transition from legacy platforms to mobile, cloud, big data and social solutions. If our current and prospective customers cut costs they may significantly reduce their information technology expenditures. Additionally, if our current and prospective customers shift their information technology spending more rapidly towards newer technologies and solutions, the demand for our products and services most aligned with legacy platforms (such as our Desktop Virtualization products) could decrease. Fluctuations in the demand for our products and services could have a material adverse effect on our business, results of operations and financial condition.

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If we do not develop new products and services, integrate acquired products and services and enhance our existing products and services, our business, results of operations and financial condition could be adversely affected.

The markets for our products and services are characterized by:

• rapid technological change;

• evolving industry standards;

• fluctuations in customer demand;

• changing and increasingly sophisticated customer needs; and

• frequent new product and service introductions and enhancements.

Our future success depends on our ability to continually enhance our current products and services, integrate acquired products and services, and develop and introduce new products and services that our customers choose to buy. The emerging markets for our next generation of products and services have yet to be defined. The introduction of third-party solutions embodying new technologies and the emergence of new industry standards could make our existing and future software solutions obsolete and unmarketable. If we are unable to keep pace with technological developments of third parties, expectations of the emerging markets and customer demands by introducing new products and services and enhancements, our business, results of operations and financial condition could be adversely affected. Our future success could be hindered by:

• delays in our introduction of new products and services;

• delays in market acceptance of new products and services or new releases of our current products and services;

• our failure to support services in a timely manner;

• our failure to identify and address significant product quality issues;

• our inability to position our and/or price our products and services to meet the market demand;

• our failure to maintain relevance in the evolving marketplace; and

• third party’s introduction of new products, or services or technologies that could replace, make obsolete or shorten the life cycle of our existing product and service offerings.

We believe the demand for technology has and will continue to shift from the types of products and services we and our competitors have sold in the past to a new generation of products and services. We cannot guarantee that our Enterprise Mobility Management and Desktop and Application Virtualization products, Cloud Platform and Cloud Networking products and Collaboration and Data products will achieve the broad market acceptance by our channel and strategic partners, customers and prospective customers necessary to generate significant revenue in the future. In addition, we cannot guarantee that we will be able to respond effectively to technological changes or new product announcements by others. If we experience material delays or sales shortfalls with respect to our new products and services or new releases of our current products and services, those delays or shortfalls could have a material adverse effect on our business, results of operations and financial condition.

We face intense competition, which could result in customer loss, fewer customer orders and reduced revenues and margins.

We sell our products and services in intensely competitive markets. Some of our competitors and potential competitors have significantly greater financial, technical, sales and marketing and other resources than we do. We compete based on our ability to offer to our customers the most current and desired product and services features. We expect that competition will continue to be intense, and there is a risk that our competitors' products may be less costly or, especially with respect to our Collaboration and Data Products, free, provide better performance or include additional features when compared to our products. Additionally, there is a risk that our products may become outdated or that our market share may erode. Further, the announcement of the release, and the actual release, of new products incorporating similar features to our products could cause our existing and potential customers to postpone or cancel plans to license certain of our existing and future product and service offerings. Existing or new products and services that provide alternatives to our products and services could materially impact our ability to compete in these markets. As the markets for our products and services, especially those products in early stages of development, continue to develop, additional companies, including companies with significant market presence in the computer hardware, software, cloud, networking, mobile, collaboration, data sharing and related industries, could enter the markets in which we compete and further intensify competition. In addition, we believe price competition could become a more significant competitive factor in the future. As a result, we may not be able to maintain our historic prices and margins, which could adversely affect our business, results of operations and financial condition.

We expect to continue to face additional competition as new participants enter our markets. As our businesses continue to expand globally, we may see new and increased competition in different geographic regions. The generally low barriers to entry in certain of our businesses increase the potential for challenges from new industry competitors which for certain of our businesses may include small and medium sized businesses or larger more established companies. Smaller companies new to our market have more flexibility to develop on more agile platforms and have greater ability to adapt their strategy and cost

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structures which may give them a competitive advantage with our current or prospective customers. We may also see increased competition from new types of products as the options for mobile and cloud, networking and collaboration and data sharing solutions increase. Further, as our industry evolves and our company grows, companies with which we have strategic alliances may become competitors in other product areas or our current competitors may enter into new strategic relationships with new or existing competitors, all of which may further increase the competitive pressures we face. We expect to continue to face additional competition as new participants enter our markets. As we continue to expand globally, we may see new competitors in different geographic regions.

In order to be successful, we must attract, engage, retain and integrate key employees, and failure to do so could have an adverse effect on our ability to manage our business.

Our success depends, in large part, on our ability to attract, engage, retain, and integrate qualified executives and other key employees throughout all areas of our business. Identifying, developing internally or hiring externally, training and retaining highly-skilled managerial, technical, sales and services, finance and marketing personnel are critical to our future, and competition for experienced employees can be intense. In order to attract and retain executives and other key employees in a competitive marketplace, we must provide a competitive compensation package, including cash- and equity-based compensation. If we do not obtain the stockholder approval needed to continue granting equity compensation in a competitive manner, our ability to attract, retain, and motivate executives and key employees could be weakened. Failure to successfully hire executives and key employees or the loss of any executives and key employees could have a significant impact on our operations. Further, changes in our management team may be disruptive to our business, and any failure to successfully integrate key new hires or promoted employees could adversely affect our business and results of operations. Competition for qualified personnel in our industry is intense because of the limited number of people available with the necessary technical skills and understanding of products in our industry. The loss of services of any key personnel, the inability to retain and attract qualified personnel in the future or delays in hiring may harm our business and results of operations.

Effective succession planning is also important to our long-term success. Failure to ensure effective transfer of knowledge and smooth transitions involving key employees could hinder our strategic planning and execution. In January 2014, we announced that Mark B. Templeton, our President and Chief Executive Officer, intends to retire within the next year. There are no assurances concerning the timing or outcome of our search for a new Chief Executive Officer. Our ability to execute our business strategies and attract and retain key executives may be adversely affected by the uncertainty associated with the transition to a successor CEO.

Adverse changes in general global economic conditions could adversely affect our operating results.

As a globally operated company, we are subject to the risks arising from adverse changes in global economic and market conditions. Continued economic uncertainty across all geographic locations may adversely affect sales of our products and services and may result in longer sales cycles, slower adoption of technologies and increased price competition. Additionally, in response to sustained economic uncertainty, many national and local governments that are current or prospective customers for our products and services have also made, or announced plans to make, significant spending cutbacks which could reduce the amount of government spending on IT and the potential demand for our products and services from government organizations. Adverse economic conditions also may negatively impact our ability to obtain payment for outstanding debts owed to us by our customers or other parties with whom we do business.

Our Desktop and Application Virtualization products are an alternative to the traditional way of managing desktops, and various factors could cause this line of products and services to result in slower revenue growth than we have historically experienced.

The success of our Desktop and Application Virtualization products depends in part on organizations and customers perceiving technological and operational benefits and cost savings associated with adopting desktop and application virtualization solutions. Although we have experienced success with this platform, some customers may experience challenges in implementing desktop and application virtualization due to complexity as they may create complex deployments. In addition, our primary competition in desktop and application virtualization is the existing IT practice of managing physical desktops as devices, and the success of our Desktop and Application Virtualization products may depend on information technology executives' continuing to rethink how desktops can be delivered more effectively and efficiently. To the extent that there is slower adoption of desktop and application virtualization solutions, the revenue growth associated with our Desktop and Application Virtualization products may be slower than we have historically experienced, which could adversely affect our business, results of operations and financial condition.

We anticipate that sales of our Desktop and Application Virtualization products and related enhancements and upgrades will constitute a majority of our revenue for the foreseeable future. Declines and variability in demand for our Desktop and Application Virtualization products could occur as a result of:

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• new competitive product releases and updates to existing products;

• industry trend to focus on the delivery of applications especially on mobile devices;

• introduction of potential disruptive technology by third parties;

• termination of our product offerings and enhancements;

• potential market saturation;

• technological change;

• general economic conditions;

• complexities and cost in implementation;

• failure to deliver satisfactory technical support;

• dissatisfied customers; or

• lack of success of entities with which we have a technology relationship.

 In addition, there continues to be an increase to the number of alternatives to Windows operating system powered desktops, in particular mobile devices such as smartphones and tablet computers. Users may increasingly turn to these devices to perform functions that would have been traditionally performed by desktops and laptops, which in turn may reduce the market for our Desktop and Application Virtualization products.

If our customers do not continue to purchase our Desktop and Application Virtualization products as a result of these or other factors, our revenue would decrease and our results of operations and financial condition would be adversely affected. In addition, modification or termination of certain of our Desktop and Application Virtualization products may cause variability in our revenue and make it difficult to predict our revenue growth and trends in our Desktop and Application Virtualization products as our customers adjust their purchasing decisions in response to such events.

Industry consolidation may result in increased competition.

There has been a trend toward industry consolidation in our markets for several years. We expect this trend to continue as companies attempt to strengthen or hold their market positions in an evolving industry and as companies are acquired or are unable to continue operations. For example, some of our competitors have made acquisitions or entered into partnerships or other strategic relationships to offer a more comprehensive solution than they had previously offered. Additionally, as IT companies attempt to strengthen or maintain their market positions in the evolving desktop and application virtualization, collaboration and data sharing, mobility, cloud networking and cloud platform markets, these companies continue to seek to deliver comprehensive IT solutions to end users and combine enterprise-level hardware and software solutions that may compete with our virtualization, mobility and collaboration and data sharing solutions. These consolidators or potential consolidators may have significantly greater financial, technical and other resources than we do and may be better positioned to acquire and offer complementary products and services. The companies resulting from these possible combinations may create more compelling product and service offerings and be able to offer greater pricing flexibility or sales and marketing support for such offerings than we can. These heightened competitive pressures could result in a loss of customers or a reduction in our revenues or revenue growth rates, all of which could adversely affect our business, results of operations and financial condition.

Actual or perceived security vulnerabilities in our products and services or cyberattacks on our networks could have a material adverse impact on our business and results of operations.

Use of our products and services may involve the transmission and/or storage of data, including in certain instances customers' business and personally identifiable information. Thus, maintaining the security of products, computer networks and data storage resources is important as security breaches could result in product or service vulnerabilities and loss of and/or unauthorized access to confidential information. We devote significant resources to addressing security vulnerabilities in our products and services through our efforts to engineer more secure products and services, enhance security and reliability features in our products and services, deploy security updates to address security vulnerabilities and seeking to respond to known security incidents in sufficient time to minimize any potential adverse impact. Despite our preventive efforts, last year unauthorized parties have penetrated certain of our systems leading to the revocation of a code signing certificate in August 2013. Generally speaking, unauthorized parties may attempt to misappropriate or compromise our confidential information or that of third parties, create system disruptions, product or service vulnerabilities or cause shutdowns. These perpetrators of cyberattacks also may be able to develop and deploy viruses, worms, malware and other malicious software programs that attack our products and services, our networks or otherwise exploit any security vulnerabilities of our products, services and networks. Because techniques used by these perpetrators to obtain unauthorized access to or sabotage systems change frequently and generally are not recognized until long after being launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures. We can make no assurance that we will be able to detect, prevent, timely and adequately address, or mitigate the negative effects of cyberattacks or other security breaches.

A breach of our security measures as a result of third-party action, malware, employee error, malfeasance or otherwise could result in (among other consequences):

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• harm to our reputation or brand, which could lead some customers to seek to cancel subscriptions, stop using certain of our products or services, reduce or delay future purchases of our products or services, or use competing products or services;

• individual and/or class action lawsuits, which could result in financial judgments against us or the payment of settlement amounts, which would cause us to incur legal fees and costs;

• state or federal enforcement action, which could result in fines and/or penalties or other sanctions and which would cause us to incur legal fees and costs; and/or

• in the event that we or one of our customers were the victim of a cyberattack or other security breach, additional costs associated with responding to such breach, such as investigative and remediation costs, and the costs of providing data owners or others with notice of the breach, legal fees, the costs of any additional fraud detection activities required by such customers' credit card issuers, and costs incurred by credit card issuers associated with the compromise and additional monitoring of systems for further fraudulent activity.

Any of these actions could materially adversely impact our business and results of operations.

Regulation of the Web and telecommunications, privacy and data security may adversely affect sales of our products and result in increased compliance costs.

As Web commerce continues to evolve, increasing regulation by federal, state or foreign agencies and industry groups becomes more likely. For example, we believe increased regulation is likely with respect to the solicitation, collection, processing or use of personal, financial and consumer information as regulatory authorities around the world are considering a number of legislative and regulatory proposals concerning data protection, privacy and data security. In addition, the interpretation and application of consumer and data protection laws and industry standards in the United States, Europe and elsewhere are often uncertain and in flux. The application of existing laws to cloud-based solutions is particularly uncertain and cloud-based solutions may be subject to further regulation, the impact of which cannot be fully understood at this time. Moreover, it is possible that these laws may be interpreted and applied in a manner that is inconsistent with our data and privacy practices. If so, in addition to the possibility of fines, this could result in an order requiring that we change our data and privacy practices, which could have an adverse effect on our business and results of operations. Complying with these various laws could cause us to incur substantial costs or require us to change our business practices in a manner adverse to our business. Also, any new regulation, or interpretation of existing regulation, imposing greater fees or taxes on Web-based services, such as collaboration and data sharing services and audio services, or restricting information exchange over the Web, could result in a decline in the use and adversely affect sales of our products and our results of operations.

Our Collaboration and Data products may involve the storage and transmission of protected health information, or PHI, that is subject to the Health Insurance Portability and Accountability Act, or HIPAA. HIPAA, amended by the Health Information Technology for Economic and Clinical Health Act, or the HITECH ACT, has significantly increased the civil money penalties for violations of patient privacy rights protected under HIPAA. As a result of the HITECH ACT, business associates who have access to PHI provided by hospitals, healthcare providers, health insurance companies and other covered entities are now directly subject to HIPAA, including the new enforcement scheme and inspection requirements. To the extent, we are required to comply with HIPAA's stringent data security requirement, we may be liable for sanctions and penalties for any failure to so comply. Furthermore, we may be required to incur additional expenses in order to comply with the HITECH Act and any further amendments to and/or modifications of these requirements.

Our products could contain errors that could delay the release of new products or that may not be detected until after our products are shipped.

Despite significant testing by us and by current and potential customers, our products, especially new products or releases or acquired products, could contain errors. In some cases, these errors may not be discovered until after commercial shipments have been made. Errors in our products could delay the development or release of new products and could adversely affect market acceptance of our products. Additionally, our products depend on third-party products, which could contain defects and could reduce the performance of our products or render them useless. Because our products are often used in mission-critical applications, errors in our products or the products of third parties upon which our products rely could give rise to warranty or other claims by our customers, which may have a material adverse effect on our business, financial condition and results of operations.

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We may experience outages, data loss and service disruptions of our Collaboration and Data products and Cloud Platform and Cloud Networking products, which could significantly and adversely affect our financial condition and operating results.

The increasing user traffic and complexity of our Collaboration and Data products, specifically those using Voice over Internet protocol and high-definition video conferencing features, and Cloud Platform and Cloud Networking products demands more computing power. We have spent and expect to continue to spend substantial amounts to adequately resource our Collaboration and Data products and Cloud Platform and Cloud Networking products and to upgrade our technology and network infrastructure to handle the increased traffic of our collaboration and data products. Maintaining and expanding the capacity and geographic footprint of our infrastructure is expensive and complex. Inefficiencies or operational failures, including temporary service outages and temporary or permanent loss of customer data, could diminish the perceived quality and reliability of our services, and result in liability claims by customers and other third parties, damage to our reputation and loss of current and potential customers, any of which could materially and adversely affect our financial condition and results of operations.

Certain of the offerings from our Enterprise and Service Provider division have sales cycles which are long and/or unpredictable which could cause significant variability and unpredictability in our revenue and operating results for any particular period.

Generally, a substantial portion of our large and medium-sized customers implement our Desktop and Application Virtualization products on a departmental or enterprise-wide basis. We have a long sales cycle for these departmental or enterprise-wide sales because:

• our sales force generally needs to explain and demonstrate the benefits of a large-scale deployment of our product to potential and existing customers prior to sale;

• our service personnel typically spend a significant amount of time assisting potential customers in their testing and evaluation of our products and services;

• our customers are typically large and medium size organizations that carefully research their technology needs and the many potential projects prior to making capital expenditures for software infrastructure; and

• before making a purchase, our potential customers usually must get approvals from various levels of decision makers within their organizations, and this process can be lengthy.

Our long sales cycle for these products makes it difficult to predict when these sales will occur, and we may not be able to sustain these sales on a predictable basis. In addition, the long sales cycle for these products makes it difficult to predict the quarter in which sales will occur. Delays in sales could cause significant variability in our revenue and operating results for any particular period, and large projects with significant IT components may fail to meet our customers' business requirements or be canceled before delivery, which likewise could adversely affect our revenue and operating results for any particular period.

Similarly, our ByteMobile Smart Capacity solutions have a long and unpredictable sales cycle, and the timing of the related revenue is difficult to predict. Because sales of our ByteMobile Smart Capacity solutions are focused on the telecommunications market, we are subject to lengthy internal budgeting, approval and competitive evaluation processes that such customers generally require.

Overall the timing of our revenue is difficult to predict. Our quarterly sales have historically reflected an uneven pattern in which a disproportionate percentage of a quarter’s total sales occur in the last month, weeks and days of each quarter. In addition, our business is subject to seasonal fluctuations and are generally highest in our fourth fiscal quarter which we believe is due to the lapse of customers' fiscal year budgets and an increase in amounts paid pursuant to our sales compensation plans due to compensation plan accelerators that are often triggered in the fourth quarter. We believe that these seasonal factors are common within our industry. In addition, our European operations generally generate lower revenues in the summer months because of the generally reduced economic activity in Europe during the summer.

If we fail to convert our free users to paying customers or retain existing customers of our Collaboration and Data Products, our revenue and results of operations would be adversely affected.

Initially many users of our Collaboration and Data Products utilize such products free of charge through free trials or freemium versions of the products or lower priced/limited functionality versions of the products. We seek to convert these free trial users to paying customers and, where appropriate, to upsell customers on lower priced/limited functionality versions of our product to higher priced/full functionality versions. If our rate of conversion or upsell suffers for any reason, our revenue may decline. We sell our Collaboration and Data Products pursuant to subscription agreements. Such customers may cancel their subscription after their subscription period expires. We may not be able to accurately predict future trends in customer cancellation, and our customers’ continuation rates may decline or fluctuate because of several factors, including their

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satisfaction or dissatisfaction with our Collaboration and Data products, the prices of such products, the prices of products offered by our competitors or reductions in our customers’ spending levels. If our customers cancel their subscriptions for our Collaboration and Data Products our revenue may grow more slowly than expected or decline, and our operating results and financial condition could be adversely impacted.

Our success depends on our ability to attract and retain and further access large enterprise customers.

We must retain and continue to expand our ability to reach and access large enterprise customers by adding effective value-added distributors, or VADs, system integrators, or SIs, and other partners, as well as expanding our direct sales teams and consulting services. Our inability to attract and retain large enterprise customers could have a material adverse effect on our business, results of operations and financial condition. Large enterprise customers usually request special pricing and purchase of multiple years of subscription and maintenance up-front and generally have longer sales cycles, which could negatively impact our revenues. By allowing these customers to purchase multiple years of subscription or maintenance up-front and by granting special pricing, such as bundled pricing or discounts, to these large customers, we may have to defer recognition of some or all of the revenue from such sales. This deferral could reduce our revenues and operating profits for a given reporting period.

Changes to our licensing or subscription renewal programs, or bundling of our products, could negatively impact the timing of our recognition of revenue.

We continually re-evaluate our licensing programs and subscription renewal programs, including specific license models, delivery methods, and terms and conditions, to market our current and future products and services. We could implement new licensing programs and subscription renewal programs, including promotional trade-up programs or offering specified enhancements to our current and future product and service lines. Such changes could result in deferring revenue recognition until the specified enhancement is delivered or at the end of the contract term as opposed to upon the initial shipment or licensing of our software product. We could implement different licensing models in certain circumstances, for which we would recognize licensing fees over a longer period, including offering additional products in a SaaS model. Changes to our licensing programs and subscription renewal programs, including the timing of the release of enhancements, upgrades, maintenance releases, the term of the contract, discounts, promotions and other factors, could impact the timing of the recognition of revenue for our products, related enhancements and services and could adversely affect our operating results and financial condition.

Further, we may be required to defer the recognition of revenue that we receive from the sale of certain bundled products, if we have not established vendor specific objective evidence, or VSOE, for the undelivered elements in the arrangement in accordance with generally accepted accounting principles in the United States, or GAAP. A delay in the recognition of revenue from sales of these bundled products may cause fluctuations in our quarterly financial results and may adversely affect our operating margins. Similarly, companies that we acquire may operate with different cost and margin structures, which could further cause fluctuations in our operating results and adversely affect our operating margins. Moreover, if our quarterly financial results or our predictions of future financial results fail to meet the expectations of securities analysts and investors, our stock price could be negatively affected.

Sales and renewals of our license updates and maintenance products constitute a large portion of our deferred revenue.

We anticipate that sales and renewals of our license updates and maintenance products will continue to constitute a substantial portion of our deferred revenue. Our ability to continue to generate both recognized and deferred revenue from our license updates and maintenance products will depend on our customers continuing to perceive value in automatic delivery of our software upgrades and enhancements. A decrease in demand for our license updates and maintenance products could occur as a result of a decrease in demand for our Mobile and Desktop products and our Networking and Cloud products. If our customers do not continue to purchase our license updates and maintenance products, our deferred revenue would decrease significantly and our results of operations and financial condition would be adversely affected.

As we expand our international footprint, we could become subject to additional risks that could harm our business.

We conduct significant sales and customer support, development and engineering operations in countries outside of the United States. During the year ended December 31, 2013, we derived approximately 45.4% of our revenues from sales outside the United States. Our continued growth and profitability could require us to further expand our international operations. To successfully maintain and expand international sales, we may need to establish additional foreign operations, hire additional personnel and recruit additional international resellers. In addition, there is significant competition for entry into high growth markets where we may seek to expand, such as China, Middle East and Eastern Europe. Our international operations are subject to a variety of risks, which could cause fluctuations in the results of our international operations. These risks include:

• compliance with foreign regulatory and market requirements;

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• variability of foreign economic, political and labor conditions;

• changing restrictions imposed by regulatory requirements, tariffs or other trade barriers or by U.S. export laws;

• regional data privacy laws that apply to the transmission of our customers’ data across international borders;

• health or similar issues such as pandemic or epidemic;

• difficulties in staffing and managing international operations;

• longer accounts receivable payment cycles;

• potentially adverse tax consequences;

• difficulties in protecting intellectual property;

• burdens of complying with a wide variety of foreign laws; and

• as we generate cash flow in non-U.S. jurisdictions, if required, we may experience difficulty transferring such funds to the U.S. in a tax efficient manner.

Our success depends, in part, on our ability to anticipate and address these risks. We cannot guarantee that these or other factors will not adversely affect our business or results of operations.

We rely on indirect distribution channels and major distributors that we do not control.

We rely significantly on independent distributors and resellers to market and distribute our products and appliances. For instance, one distributor, Ingram Micro, accounted for approximately 14% of our net revenues in 2013. Our distributor arrangements with Ingram Micro consist of several non-exclusive, independently negotiated agreements with our subsidiaries, each of which cover different countries or regions. In addition, our reseller base is relatively concentrated. We maintain and periodically revise our sales incentive programs for our independent distributors and resellers, and such program revisions may adversely impact our results of operations. Our competitors may in some cases be effective in providing incentives to current or potential distributors and resellers to favor their products or to prevent or reduce sales of our products. The loss of or reduction in sales to our distributors or resellers could materially reduce our revenues. Further, we could maintain individually significant accounts receivable balances with certain distributors. The financial condition of our distributors could deteriorate and distributors could significantly delay or default on their payment obligations. Any significant delays, defaults or terminations could have a material adverse effect on our business, results of operations and financial condition.

We plan to diversify our base of channel relationships by adding and training more channel members with abilities to reach larger enterprise customers and to sell our newer products. We also plan to create relationships with new channel partners, such as systems integrators and OEMs. In addition to this diversification of our base, we will need to maintain a healthy mix of channel members who service smaller customers. We may need to add and remove distribution members to maintain customer satisfaction and a steady adoption rate of our products, which could increase our operating expenses. Through our Citrix Partner Network and other programs, we are currently investing, and intend to continue to invest, significant resources to develop these channels, which could reduce our profits.

Our Cloud Networking business could suffer if there are any interruptions or delays in the supply of hardware or hardware components from our third-party sources.

We rely on a concentrated number of third-party suppliers, who provide hardware or hardware components for our Cloud Networking products, and contract manufacturers. If we are required to change suppliers, there could be a delay in the supply of our hardware or hardware components and our ability to meet the demands of our customers could be adversely affected, which could cause the loss of Cloud Networking sales and existing or potential customers and delayed revenue recognition and adversely affect our results of operations. While we have not, to date, experienced any material difficulties or delays in the manufacture and assembly of our Cloud Networking products, our suppliers may encounter problems during manufacturing due to a variety of reasons, including failure to follow specific protocols and procedures, failure to comply with applicable regulations, or the need to implement costly or time-consuming protocols to comply with applicable regulations (including regulations related to conflict minerals), equipment malfunction, natural disasters and environmental factors, any of which could delay or impede their ability to meet our demand.

We are exposed to fluctuations in foreign currency exchange rates, which could adversely affect our future operating results.

Our results of operations are subject to fluctuations in exchange rates, which could adversely affect our future revenue and overall operating results. In order to minimize volatility in earnings associated with fluctuations in the value of foreign currency relative to the U.S. dollar, we use financial instruments to hedge our exposure to foreign currencies as we deem appropriate for a portion of our expenses, which are denominated in the local currency of our foreign subsidiaries. We generally initiate our hedging of currency exchange risks one year in advance of anticipated foreign currency expenses for those

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currencies to which we have the greatest exposure. When the dollar is weak, foreign currency denominated expenses will be higher, and these higher expenses will be partially offset by the gains realized from our hedging contracts. If the dollar is strong, foreign currency denominated expenses will be lower. These lower expenses will in turn be partially offset by the losses incurred from our hedging contracts. There is a risk that there will be fluctuations in foreign currency exchange rates beyond the one year timeframe for which we hedge our risk and there is no guarantee that we will accurately forecast the expenses we are hedging. Changes in the value of foreign currencies relative to the value of the U.S. dollar could adversely affect future revenue and operating results. In addition, as a result of entering into these contracts with counterparties who are unrelated to us, the risk of a counterparty default exists in fulfilling the hedge contract. Should there be a counterparty default, we could be unable to recover anticipated net gains from the transactions.

If we fail to effectively manage our growth, our future operating results could be adversely affected.

Historically, the scope of our operations, the number of our employees and the geographic area of our operations and our revenue have grown rapidly. In addition, we have acquired both domestic and international companies. This growth and the assimilation of acquired operations and their employees could continue to place a significant strain on our managerial, operational and financial resources as our future acquisition activities accelerate our business expansion. We need to continue to implement and improve additional management and financial systems and controls. We may not be able to manage the current scope of our operations or future growth effectively and still exploit market opportunities for our products and services in a timely and cost-effective way and we may not meet our scalability expectations. Our future operating results could be adversely affected if we are unable to manage our expanding product lines, our marketing and sales organizations and our client support organization to the extent required for any increase in installations of our products.

If operating margins and gross margins decline, our future operating results could be adversely affected.

Our operating margins in our new initiatives may be lower than those we have achieved in our more mature products and services markets, and our new initiatives may not generate sufficient revenue to recoup our investments in them. We may experience a decline in gross margin as the mix of our revenue may include more products with a hardware component and increased sales of our services, both of which have a higher cost than our software products. If we are not able to recoup our investment by normalizing our margins or reducing our costs through integration of new initiatives it could adversely affect our business, results of operations and financial condition.

If we do not generate sufficient cash flow from operations in the future, we may not be able to fund our product development efforts and acquisitions or fulfill our future obligations.

Our ability to generate sufficient cash flow from operations to fund our operations and product development efforts, including the payment of cash consideration in acquisitions and the payment of our other obligations, depends on a range of economic, competitive and business factors, many of which are outside of our control. We cannot assure you that our business will generate sufficient cash flow from operations, or that we will be able to liquidate our investments, repatriate cash and investments held in our overseas subsidiaries, sell assets or raise equity or debt financings when needed or desirable. An inability to fund our operations or fulfill outstanding obligations could have a material adverse effect on our business, financial condition and results of operations. For further information, please refer to “Management's Discussion and Analysis of Financial Condition and Results of Operations-Liquidity and Capital Resources.”

RISKS RELATED TO ACQUISITIONS AND STRATEGIC RELATIONSHIPS

Acquisitions present many risks, and we may not realize the financial and strategic goals we anticipate at the time of an acquisition.

Our growth is dependent upon market growth, our ability to enhance existing products and services, and our ability to introduce new products and services on a timely basis. In recent years, we have addressed and intend to continue to address the need to develop new products and services and enhance existing products and services through acquisitions of other companies, product lines and/or technologies. However, acquisitions, including those of high-technology companies, are inherently risky. We cannot provide any assurance that any of our acquisitions or future acquisitions will be successful in helping us reach our financial and strategic goals. The risks we commonly encounter in undertaking, managing and integrating acquisitions are:

• an uncertain revenue and earnings stream from the acquired company, which could dilute our earnings;

• difficulties and delays integrating the personnel, operations, technologies, products and systems of the acquired companies;

• undetected errors or unauthorized use of a third-party's code in products of the acquired companies;

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• our ongoing business may be disrupted and our management's attention may be diverted by acquisition, transition or integration activities;

• the need to implement controls, procedures and policies appropriate for a larger public company at companies that prior to acquisition had lacked such controls, procedures and policies;

• difficulties managing or integrating an acquired company's technologies or lines of business;

• potential difficulties in completing projects associated with purchased in-process research and development;

• entry into markets in which we have no or limited direct prior experience and where competitors have stronger market positions and which are highly competitive;

• the potential loss of key employees of the acquired company;

• potential difficulties integrating the acquired products and services into our sales channel;

• assuming pre-existing contractual relationships of an acquired company that we would not have otherwise entered into, the termination or modification of which may be costly or disruptive to our business;

• being subject to unfavorable revenue recognition or other accounting treatment as a result of an acquired company's practices; and

• intellectual property claims or disputes.

Our failure to manage growth effectively and successfully integrate acquired companies due to these or other factors could have a material adverse effect on our business, results of operations and financial condition. Further, our 2014 operating plan assumes a significant level of financial performance from our acquisitions that were completed during 2012 and 2013 and if these acquired companies or technologies do not perform as we expect, our operating results could be materially and adversely affected.

In addition, we may not have the opportunity to make suitable acquisitions on favorable terms in the future, which could negatively impact the growth of our business. We expect that other companies in our industry will compete with us to acquire compatible businesses. This competition could increase prices for businesses and technologies that we would likely pursue, and our competitors may have greater resources than we do to complete these acquisitions.

If we determine that any of our goodwill or intangible assets, including technology purchased in acquisitions, are impaired, we would be required to take a charge to earnings, which could have a material adverse effect on our results of operations.

We have a significant amount of goodwill and other intangible assets, such as product related intangible assets, from our acquisitions. We do not amortize goodwill and intangible assets that are deemed to have indefinite lives. However, we do amortize certain product related technologies, trademarks, patents and other intangibles and we periodically evaluate them for impairment. We review goodwill for impairment annually, or sooner if events or changes in circumstances indicate that the carrying amount could exceed fair value, at the reporting unit level, which for us, also represents our operating segments. Significant judgments are required to estimate the fair value of our goodwill and intangible assets, including estimating future cash flows, determining appropriate discount rates, estimating the applicable tax rates, foreign exchange rates and interest rates, projecting the future industry trends and market conditions, and making other assumptions. Although we believe the assumptions, judgments and estimates we have made have been reasonable and appropriate, different assumptions, judgments and estimates, materially affect our results of operations. Changes in these estimates and assumptions, including changes in our reporting structure, could materially affect our determinations of fair value. In addition, due to uncertain market conditions and potential changes in our strategy and product portfolio, it is possible that the forecasts we use to support our goodwill and other intangible assets could change in the future, which could result in non-cash charges that would adversely affect our results of operations and financial condition. If we determine that any of the goodwill or other intangible assets associated with our acquisitions is impaired, then we would be required to reduce the value of those assets or to write them off completely by taking a charge to current earnings. If we are required to write down or write off all or a portion of those assets, or if financial analysts or investors believe we may need to take such action in the future, our stock price and operating results could be materially and adversely affected.

Our inability to maintain or develop our strategic and technology relationships could adversely affect our business.

We have several strategic and technology relationships with large and complex organizations, such as Microsoft and Cisco, and other companies with which we work to offer complementary products and services. We depend on the companies with which we have strategic relationships to successfully test our products, to incorporate our technology into their products and to market and sell those products. There can be no assurance we will realize the expected benefits from these strategic relationships or that they will continue in the future. If successful, these relationships may be mutually beneficial and result in industry growth. However, such relationships carry an element of risk because, in most cases, we must compete in some business areas with a company with which we have a strategic relationship and, at the same time, cooperate with that company in other business areas. Also, if these companies fail to perform or if these relationships fail to materialize as expected, we

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could suffer delays in product development, reduced sales or other operational difficulties and our business, results of operations and financial condition could be materially adversely affected.

RISKS RELATED TO INTELLECTUAL PROPERTY AND BRAND RECOGNITION

Our efforts to protect our intellectual property may not be successful, which could materially and adversely affect our business.

We rely primarily on a combination of copyright, trademark, patent and trade secret laws, confidentiality procedures and contractual provisions to protect our source code and other intellectual property. The loss of any material trade secret, trademark, tradename, patent or copyright could have a material adverse effect on our business. Despite our precautions, it could be possible for unauthorized third parties to copy, disclose or reverse engineer certain portions of our products or to otherwise obtain and use our proprietary source code, in which case we could potentially lose future trade secret protection for that source code. If we cannot protect our proprietary source code against unauthorized copying, disclosure or use, unauthorized third parties could develop products similar to or better than ours.

Any patents owned by us could be invalidated, circumvented or challenged. Any of our pending or future patent applications, whether or not being currently challenged, may not be issued with the scope of protection we seek, if at all; and if issued, may not provide any meaningful protection or competitive advantage.

In addition, our ability to protect our proprietary rights could be affected by differences in international law and the enforceability of licenses. The laws of some foreign countries do not protect our intellectual property to the same extent as do the laws of the United States and Canada. For example, we derive a significant portion of our sales from licensing our products under “click-to-accept” license agreements that are not signed by licensees and electronic enterprise customer licensing arrangements that are delivered electronically, all of which could be unenforceable under the laws of many foreign jurisdictions in which we license our products.

Our products and services, including products obtained through acquisitions, could infringe third-party intellectual property rights, which could result in material litigation costs.

We are increasingly subject to patent infringement claims and may in the future be subject to claims alleging the unauthorized use of a third-party's code in our products. This may occur for a variety of reasons, including:

• the expansion of our product lines, such as our Enterprise Mobility Management and Desktop and Application Virtualization and Cloud Platform and Cloud Networking products, and related technical services and expansion of our Collaboration and Data products, through product development and acquisitions;

• an increase in patent infringement litigation commenced by non-practicing entities;

• an increase in the number of competitors in our industry segments and the resulting increase in the number of related products and services and the overlap in the functionality of those products and services;

• an increase in the number of competitors in our industry segments and the resulting increase in the number of related products and services and the overlap in the functionality of those products and services;

• an increase in the risk that our competitors and third parties could use their own intellectual property rights to limit our freedom to operate and exploit our products, or to otherwise block us from taking full advantage of our markets;

• our products and services may rely on the technology of others and, therefore, require us to obtain intellectual property licenses from third parties in order for us to commercialize our products or services and we may not be able to obtain or continue to obtain licenses from these third parties on reasonable terms; and

• the unauthorized use of third-party code in our product development process.

Companies and inventors are more frequently seeking to patent software. As a result, we could receive more patent infringement claims. Responding to any infringement claim, regardless of its validity or merit, could result in costly litigation. Further, intellectual property litigation could compel us to do one or more of the following:

• pay damages (including the potential for treble damages), license fees or royalties (including royalties for past periods) to the party claiming infringement;

• stop licensing products or providing services that use the challenged intellectual property;

• obtain a license from the owner of the infringed intellectual property to sell or use the relevant technology, which license may not be available on reasonable terms, or at all; or

• redesign the challenged technology, which could be time consuming and costly, or not be accomplished.

If we were compelled to take any of these actions, our business, results of operations or financial condition may suffer.

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Our use of “open source” software could negatively impact our ability to sell our products and subject us to possible litigation.

The products or technologies acquired, licensed or developed by us may incorporate so-called “open source” software, and we may incorporate open source software into other products in the future. Such open source software is generally licensed by its authors or other third parties under open source licenses, including, for example, the GNU General Public License, the GNU Lesser General Public License, “Apache-style” licenses, “Berkeley Software Distribution,” “BSD-style” licenses, and other open source licenses. We monitor our use of open source software in an effort to avoid subjecting our products to conditions we do not intend. Although we believe that we have complied with our obligations under the various applicable licenses for open source software that we use such that we have not triggered any of these conditions, there is little or no legal precedent governing the interpretation of many of the terms of these types of licenses. As a result, the potential impact of these terms on our business may result in unanticipated obligations regarding our products and technologies, such as requirements that we offer our products that use the open source software for no cost, that we make available source code for modifications or derivative works we create based upon, incorporating or using the open source software, and/or that we license such modifications or derivative works under the terms of the particular open source license.

If an author or other third party that distributes open source software were to allege that we had not complied with the conditions of one or more of these licenses, we could be required to incur significant legal expenses defending against such allegations. If our defenses were not successful, we could be subject to significant damages, enjoined from the distribution of our products that contained open source software, and required to comply with the terms of the applicable license, which could disrupt the distribution and sale of some of our products. In addition, if we combine our proprietary software with open source software in an unintended manner, under some open source licenses we could be required to publicly release the source code of our proprietary software.

In addition to risks related to license requirements, usage of open source software can lead to greater risks than use of third-party commercial software, as open source licensors generally do not provide warranties or assurance of title or controls on the origin of the software.

If open source software programmers, many of whom we do not employ, do not continue to develop and enhance the open source technologies we utilize, we may be unable to develop Cloud Platform products, adequately enhance our existing cloud products or meet customer requirements for innovation, quality and price of cloud products.

We rely to a significant degree on an informal community of independent open source software programmers to develop and enhance the Xen hypervisor, which is the heart of the XenServer virtualization product. Similarly, a small community of software developers are primarily responsible for the development and enhancement of the open source CloudStack platform. If these programmers fail to adequately further develop and enhance our open source technologies, we would need to further develop and enhance these technologies with our own resources. Additionally, the CloudStack IaaS software platform is still an emerging technology, making it difficult for us to predict the level of its adoption in the market. In any event, our development expenses could be increased and our product release and upgrade schedules could be delayed. Delays in developing, completing or shipping new or enhanced products could result in delayed or reduced revenue for those products and could also adversely affect customer acceptance of those offerings.

Our business depends on maintaining and protecting our strong collection of brands.

The Citrix product and service brands that we have developed has significantly contributed to the success of our business. Maintaining and enhancing the Citrix product and service brands is critical to expanding our base of customers and partners. We may be subject to reputational risks if others adopt similar marks in an effort to misappropriate and profit on our brand name and do not provide the same level of quality as is delivered by our products and services. In order to maintain, enhance and protect our brands, we may be required to make substantial investments that may not be successful. If we fail to maintain, enhance and protect the Citrix brands, if we incur excessive expenses in this effort or if customers or potential customers are confused by others' trademarks, our business, operating results, and financial condition may be materially and adversely affected.

If we lose access to third-party licenses, releases of our products could be delayed.

We believe that we will continue to rely, in part, on third-party licenses to enhance and differentiate our products. Third-party licensing arrangements are subject to a number of risks and uncertainties, including:

• undetected errors or unauthorized use of another person's code in the third party's software;

• disagreement over the scope of the license and other key terms, such as royalties payable;

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• infringement actions brought by third-party licensees;

• that third parties will create solutions that directly compete with our products; and

• termination or expiration of the license.

If we lose or are unable to maintain any of these third-party licenses or are required to modify software obtained under third-party licenses, it could delay the release of our products. Any delays could have a material adverse effect on our business, results of operations and financial condition.

RISKS RELATED TO OUR COMMON STOCK AND EXTERNAL FACTORS

Natural disasters or other unanticipated catastrophes that result in a disruption of our operations could negatively impact our results of operations.

Our worldwide operations are dependent on our network infrastructure, internal technology systems and website. Significant portions of our computer equipment, intellectual property resources and personnel, including critical resources dedicated to research and development and administrative support functions are presently located at our corporate headquarters in Fort Lauderdale, Florida, an area of the country that is particularly prone to hurricanes, and at our various locations in California, an area of the country that is particularly prone to earthquakes. We also have operations in various domestic and international locations that expose us to additional diverse risks. The occurrence of natural disasters, such as hurricanes, floods or earthquakes, or other unanticipated catastrophes, such as telecommunications failures, cyber-attacks, fires or terrorist attacks, at any of the locations in which we or our key partners, suppliers and customers do business, could cause interruptions in our operations. For example, hurricanes have passed through southern Florida causing extensive damage to the region. In addition, even in the absence of direct damage to our operations, large disasters, terrorist attacks or other casualty events could have a significant impact on our partners', suppliers' and customers' businesses, which in turn could result in a negative impact on our results of operations. Extensive or multiple disruptions in our operations, or our partners', suppliers' or customers' businesses, due to natural disasters or other unanticipated catastrophes could have a material adverse effect on our results of operations.

Our investment portfolio has been subject to impairment charges due to adverse capital market conditions, financing challenges encountered by private companies we have invested in and may be further adversely impacted by volatility in the capital markets.

Our investment portfolio as of December 31, 2013 primarily consisted of agency securities, corporate securities, government securities, commercial paper and municipal securities. As a result of adverse financial market conditions in recent years, investments in some financial instruments posed risks arising from liquidity and credit concerns. Future adverse market conditions and volatility could create similar risks for investments in financial instruments. Although we follow an established investment policy and seek to minimize the credit risk associated with investments by investing primarily in investment grade, highly liquid securities and by limiting exposure to any one issuer depending on credit quality, we cannot give any assurances that the assets in our investment portfolio will not lose value, become impaired, or suffer from illiquidity.

Future market conditions and volatility could require us to record impairment charges for other-than-temporary declines in fair market value in our available-for-sale investments, which could adversely affect our results of operations. Moreover, fluctuations in economic and market conditions could adversely affect the market value of our investments, and we could lose some of the principal value of our investment portfolio. A total loss of an investment, dependent on an individual security's par value, or a significant decline in the value of our investment portfolio could adversely affect our financial condition.

In addition, we invest in private companies to further our strategic objectives and support our key business initiatives. Such investments include equity or debt instruments, and many of these instruments are non-marketable at the time of our initial investment. The companies in which we invest may fail or lose value because they may not be able to secure additional funding, obtain favorable investment terms for future financings, or participate in liquidity events such as public offerings, mergers, and private sales. If any of these private companies fail or lose value, we could be required to impair or write-off all or part of our investment in that company.

Changes in our tax rates or our exposure to additional income tax liabilities could affect our operating results and financial condition.

Our future effective tax rates could be favorably or unfavorably affected by changes in the valuation of our deferred tax assets and liabilities, the geographic mix of our revenue, or by changes in tax laws or their interpretation. Significant judgment is required in determining our worldwide provision for income taxes. In addition, we are subject to the continuous examination of our income tax returns by tax authorities, including the Internal Revenue Service, or the IRS. We regularly assess the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of our provision for income taxes.

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There can be no assurance, however, that the outcomes from these continuous examinations will not have an adverse effect on our operating results and financial condition. Additionally, due to the evolving nature of tax rules combined with the large number of jurisdictions in which we operate, it is possible that our estimates of our tax liability and the realizability of our deferred tax assets could change in the future, which may result in additional tax liabilities and adversely affect our results of operations, financial condition and cash flows.

Our results of operations, financial condition and cash flows could be further affected by lapses in or expiration of the availability of tax credits, including the federal research and development tax credit. This tax credit expired on December 31, 2013, and may not be renewed or extended, or if renewed or extended, may be renewed or extended on terms significantly less favorable to us or on terms resulting in our disqualification from the benefits of the tax credit.

Our stock price could be volatile, particularly during times of economic uncertainty and volatility in domestic and international stock markets, and you could lose the value of your investment.

Our stock price has been volatile and has fluctuated significantly in the past. The trading price of our stock is likely to continue to be volatile and subject to fluctuations in the future. Your investment in our stock could lose some or all of its value. Some of the factors that could significantly affect the market price of our stock include:

• actual or anticipated variations in operating and financial results; analyst reports or recommendations;

• rumors, announcements, or press articles regarding our or our competitors' operations, management, organization, financial condition, or financial statements; and

• other events or factors, many of which are beyond our control.

The stock market in general, The NASDAQ Global Select Market, and the market for software companies and technology companies in particular, have experienced extreme price and volume fluctuations. These fluctuations have often been unrelated or disproportionate to operating performance. These fluctuations may continue in the future and this could materially and adversely affect the market price of our stock, regardless of operating performance.

Changes or modifications in financial accounting standards may have a material adverse impact on our reported results of operations or financial condition.

A change or modification in accounting policies can have a significant effect on our reported results and may even affect our reporting of transactions completed before the change is effective. New pronouncements and varying interpretations of existing pronouncements have occurred with frequency and may occur in the future. Changes to existing rules, or changes to the interpretations of existing rules, could lead to changes in our accounting practices, and such changes could materially adversely affect our reported financial results or the way we conduct our business.

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ITEM 1B. UNRESOLVED STAFF COMMENTS

We have received no written comments regarding our periodic or current reports from the staff of the Securities and Exchange Commission that were issued 180 days or more preceding the end of our 2013 fiscal year that remain unresolved.

ITEM 2. PROPERTIES

We lease and sublease office space in the Americas, which is comprised of the United States, Canada and Latin America, EMEA, which is comprised of Europe, the Middle East and Africa, and Asia-Pacific. The following table presents the location and square footage of our leased office space by reporting segment as of December 31, 2013:

	Enterprise and Service Provider division	SaaS division
	(square footage)
Americas	895,812	211,986
EMEA	288,033	96,486
Asia-Pacific	579,131	1,476
Total	1,762,976	309,948

In addition, we own land and buildings in Fort Lauderdale, Florida with approximately 313,385 square feet of office space used for our corporate headquarters, approximately 40,000 square feet of office space in Goleta, California related to our SaaS division, and 42,000 square feet of office space in EMEA related to our Enterprise and Service Provider division.

We believe that our existing facilities are adequate for our current needs. As additional space is needed in the future, we believe that suitable space will be available in the required locations on commercially reasonable terms.

ITEM 3. LEGAL PROCEEDINGS

On April 11, 2008, SSL Services, LLC, or SSL Services, filed a suit for patent infringement against us in the United States District Court for the Eastern District of Texas, or the SSL Matter. SSL Services alleged that we infringed U.S. Patent Nos. 6,061,796, or the '796 patent, and 6,158,011, or the '011 patent. We denied infringement and asserted that the patents-in-suit were invalid. A jury trial was held on SSL Services' claims, and on June 18, 2012, the jury found that we did not infringe the '796 patent and found that we willfully infringe the '011 patent through the sale and use of certain products. The jury awarded SSL Services $10.0 million. On September 17, 2012, the court issued a final judgment confirming the jury award of $10.0 million in damages and added $5.0 million in enhanced damages and approximately $5.0 million in prejudgment interest on the damages award. We do not believe that any of our products infringe the '011 patent, and we believe that the '011 patent is invalid. Accordingly, no accrual has been made related to this matter. The Company has appealed the district court's judgment on the '011 patent.

In addition to the SSL Matter and due to the nature of our business, we are subject to patent infringement claims, including current suits against us or one or more of our wholly-owned subsidiaries alleging infringement by various Citrix products and services, or the Other Matters. We believe that we have meritorious defenses to the allegations made in our pending cases and intend to vigorously defend these lawsuits; however, we are unable currently to determine the ultimate outcome of these or similar matters or the potential exposure to loss, if any. In addition, we are a defendant in various litigation matters generally arising out of the normal course of business. Although it is difficult to predict the ultimate outcomes of these cases, we believe that it is not reasonably possible that the ultimate outcomes will materially and adversely affect our business, financial position, results of operations or cash flows.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Price Range of Common Stock and Dividend Policy

Our common stock is currently traded on The NASDAQ Global Select Market under the symbol CTXS. The following table sets forth the high and low sales prices for our common stock as reported on The NASDAQ Global Select Market for the periods indicated, as adjusted to the nearest cent.

	High		Low
Year Ended December 31, 2013:
Fourth quarter	$	71.74	$	54.52
Third quarter	$	77.16	$	60.50
Second quarter	$	72.65	$	58.00
First quarter	$	75.50	$	65.52
Year Ended December 31, 2012:
Fourth quarter	$	77.82	$	56.57
Third quarter	$	85.65	$	68.17
Second quarter	$	87.99	$	69.89
First quarter	$	80.70	$	60.15

On February 14, 2014, the last reported sale price of our common stock on The NASDAQ Global Select Market was $57.14 per share. As of February 14, 2014, there were approximately 656 holders of record of our common stock.

We currently intend to retain any earnings for use in our business, for investment in acquisitions and to repurchase shares of our common stock. We have not paid any cash dividends on our capital stock in the last two years and do not currently anticipate paying any cash dividends on our capital stock in the foreseeable future.

Issuer Purchases of Equity Securities

Our Board of Directors has authorized an ongoing stock repurchase program with a total repurchase authority granted to us of $3.9 billion, of which $500.0 million was approved in October 2013. We may use the approved dollar authority to repurchase stock at any time until the approved amount is exhausted. The objective of the stock repurchase program is to improve stockholders’ returns. At December 31, 2013, approximately $429.3 million was available to repurchase common stock pursuant to the stock repurchase program. All shares repurchased are recorded as treasury stock. The following table shows the monthly activity related to our stock repurchase program for the quarter ended December 31, 2013.

	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate dollar value of Shares that may yet be Purchased under the Plans or Programs (in thousands)(2)
October 1, 2013 through October 31, 2013	927,281	$	57.63	918,954	$	626,395
November 1, 2013 through November 30, 2013	3,421,506	$	57.89	3,404,982	$	429,284
December 1, 2013 through December 31, 2013	30,437	$	58.64	—	$	429,284
Total	4,379,224	$	57.84	4,323,936	$	429,284

(1) Represents shares acquired in open market purchases and 55,288 shares withheld from stock units that vested in the fourth quarter of 2013 to satisfy minimum tax withholding obligations that arose on the vesting of stock units. We expended approximately $249.9 million during the quarter ended December 31, 2013 for repurchases of our common stock. For more information see Note 8 to our consolidated financial statements.

(2) Shares withheld from stock units that vested to satisfy minimum tax withholding obligations that arose on the vesting of stock units do not deplete the dollar amount available for purchases under the repurchase program.

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ITEM 6. SELECTED FINANCIAL DATA

The following selected consolidated financial data is derived from our consolidated financial statements. This data should be read in conjunction with the consolidated financial statements and notes thereto, and with Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations.

	Year Ended December 31,
	2013			2012		2011			2010			2009
	(In thousands, except per share data)
Consolidated Statements of Income Data:
Net revenues	$	2,918,434		$	2,586,123	$	2,206,392		$	1,874,662		$	1,614,088
Cost of net revenues(a)	502,795			404,137		293,599			232,266			195,197
Gross margin	2,415,639			2,181,986		1,912,793			1,642,396			1,418,891
Operating expenses	2,034,922			1,791,208		1,495,827			1,321,680			1,240,214
Income from operations	380,717			390,778		416,966			320,716			178,677
Interest income	8,194			10,152		13,819			14,577			14,683
Other (expense) income, net	(1,021		)	9,299		(288		)	(1,473		)	532
Income before income taxes	387,890			410,229		430,497			333,820			193,892
Income taxes	48,367			57,682		74,867			57,379			2,875
Consolidated net income	339,523			352,547		355,630			276,441			191,017
Less: Net loss attributable to non-controlling interest	—			—		692			624			—
Net income attributable to Citrix Systems, Inc.	$	339,523		$	352,547	$	356,322		$	277,065		$	191,017
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	$	1.80		$	1.86	$	1.87		$	1.46		$	1.03
Weighted average shares outstanding - diluted	188,245			189,129		190,641			190,335			184,985
	December 31,
	2013			2012		2011			2010			2009
	(In thousands)
Consolidated Balance Sheet Data:
Total assets	$	5,212,249		$	4,796,402	$	4,099,541		$	3,703,600		$	3,091,147
Total equity	3,319,807			3,121,777		2,730,490			2,560,588			2,188,507

(a) Cost of net revenues includes amortization of product related intangible assets of $97.9 million, $80.0 million, $54.7 million, $50.5 million, and $47.9 million in 2013, 2012, 2011, 2010 and 2009, respectively.

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ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

Citrix is a leader in virtualization, networking and cloud infrastructure to enable new ways for people to work better. Citrix solutions help IT and service providers to build, manage and secure virtual and mobile workspaces that seamlessly deliver apps, desktops, data and services to virtually anyone, on any device, over any network or cloud.

We market and license our products directly to customers, over the Web, and through systems integrators, or SIs, in addition to indirectly through value-added resellers, or VARs, value-added distributors, or VADs, original equipment manufacturers, or OEMs and service providers.

Citrix is a Delaware corporation founded on April 17, 1989.

Executive Summary

We believe our approach is unique in the market because we have combined innovative technologies into solutions that enable and power mobile workstyles. Our technologies mobilize desktops, apps, data and people to help our customers drive business value. Our Mobile and Desktop products are leaders in the area of desktop and app management, including Desktop and Application Virtualization products, marketed as XenDesktop and XenApp and mobile device management, or MDM, and mobile application management, including XenMobile products. Our Networking and Cloud products also offer customers a value-added approach to building and delivering cloud services to end-users. Our Cloud Networking products allow our customers to deliver IT services to users with high performance, security and reliability, and our Cloud Platform products allow our customers to build scalable and reliable private and public cloud computing environments. We believe this combination of products allows us to deliver a comprehensive end-to-end mobile workstyles solution; and one that we believe, when considered as a whole, is competitively differentiated by its feature set and interoperability. Collaboration and Data products allow organizations to enable mobile workstyles and offer employees the ability to move seamlessly across a diverse mix of devices and collaborate and share information.

In today’s business environment there is a sharp focus on IT products and services that can reduce cost and deliver a quick, tangible return on investment, or ROI. We are focused on helping our customers, as they invest in IT products and services, to reduce IT costs, increase business flexibility and deliver ROI by offering a simpler more flexible approach to computing.

In 2013, we generally saw unevenness in the global IT spending environment and encountered hesitancy on the part of customers in initiating large capital projects while transitioning their top priorities to mobile workstyles. In addition, during the second half of 2013, we introduced new product offerings in our Desktop and Application Virtualization business focused on reducing installation time and total cost of ownership. Although we expect a multi-year product cycle from this offering, we initially experienced longer than normal customer evaluations causing longer than anticipated sales cycles. We found this dynamic across all markets and all geographies contributing to the Product and licenses revenue results in our Desktop products when comparing the year ended December 31, 2013 to the year ended December 31, 2012. See our Summary of Results section below.

We believe that continued economic uncertainty and the transition of computing and legacy platforms to mobile, cloud, big data and social solutions may adversely affect sales of our products and services and may result in longer sales cycles, slower adoption of technologies and increased price competition.

We are focused on helping our customers embrace and power mobile workstyles and build cloud infrastructure so cloud services can be delivered virtually anywhere with a high quality user experience. We plan to sustain the long-term growth of our businesses around the world by expanding our go-to-market reach and direct customer touch; investing in product innovation and improving integration across our product portfolio to drive simplicity and end-user experience.

Enterprise and Service Provider division

Our Desktop and Application Virtualization products are built to transform and reduce the cost of traditional desktop management by virtualizing the desktop, with our XenDesktop product, and virtualizing applications, with our XenApp product, in a customer’s datacenter. We are providing the capabilities for our customers to transform the delivery of desktops and related applications to an on-demand service rather than the delivery of a device.

In January 2013, we completed our acquisition of Zenprise Inc., or Zenprise, a privately held leading innovator in MDM, which we market as XenMobile. We have integrated and expanded the XenMobile MDM technologies into a new solution, which is now offered as XenMobile Enterprise edition. This new offering offers our enterprise IT customers a comprehensive

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product that make it easier to manage and secure mobile devices, apps and data, while allowing users to embrace mobile workstyles and access enterprise apps from virtually any device. We believe our Mobility products offer a comprehensive approach that can transform organizations into mobile enterprises with the security and control IT requires, the ease of use and flexibility users desire, and the productivity business demands.

Our Cloud Networking products power mobile workstyles while altering the traditional economics of the datacenter by providing greater levels of flexibility of computing resources, especially with respect to servers, improving application performance and thereby reducing the amount of processing power involved, and allowing easy reconfiguration of servers by permitting storage and network infrastructure to be added-in virtually rather than physically. Our ByteMobile Smart Capacity products combined with our Citrix NetScaler line of Cloud Networking products enhance our broader strategy of powering mobile workstyles and cloud services and allow us to offer mobile operators combined solutions that deliver a high quality user experience to mobile subscribers.

Our Cloud Platform products allow our customers to build scalable and reliable private and public cloud computing environments where customers can quickly and easily build cloud services within their existing infrastructure and provision hosted applications, desktops, services and infrastructure as a service, or IaaS, from the cloud.

As we enhance the feature set and interoperability of our Mobility and Cloud Networking products, we drive increased customer interest around desktop and application virtualization and data sharing, because enterprises find leverage in deploying these technologies together for an end-to-end mobile workstyles solution.

SaaS division

Our SaaS division is focused on developing and marketing Collaboration and Data products. These products are primarily marketed via the web to enterprises, medium and small businesses, prosumers and individuals. Our SaaS segment's Collaboration products offer secure and cost-effective solutions that allow users to host and actively participate in online meetings, webinars and training sessions remotely and reduce costs associated with business travel. Our Data Sharing product, ShareFile, makes it easy for businesses of all sizes to securely store, sync and share business documents and files, both inside and outside the company. ShareFile's centralized cloud storage capability also allows users to share files across multiple devices and access them from any location. In addition, through our Remote Access and IT Support solutions, we offer products that provide users a secure, simple and cost efficient way to access their desktops remotely and provide support over the Internet on-demand.

Summary of Results

For the year ended December 31, 2013 compared to the year ended December 31, 2012, we delivered the following financial performance:

• Product and license revenue increased 7.3% to $891.6 million;

• Software as a service revenue increased 14.0% to $582.9 million;

• License updates and maintenance revenue increased 16.0% to $1,305.1 million;

• Professional services revenue increased 16.6% to $138.9 million;

• Gross margin as a percentage of revenue decreased 1.6% to 82.8%;

• Operating income decreased 2.6% to $380.7 million; and

• Diluted earnings per share decreased 3.2% to $1.80.

The increase in our Product and licenses revenue was primarily driven by sales of our Networking and Cloud products, led by NetScaler, partially offset by a decrease in sales of our desktop and application virtualization products. Our Software as a service revenue increased due to increased sales of our Collaboration products, led by GoToMeeting and our Data Sharing product, ShareFile. The increase in License updates and maintenance revenue was primarily due to an increase in maintenance revenues, primarily driven by increased sales of maintenance and support across all of our Enterprise and Service Provider division's products and increased renewals of our Subscription Advantage product. The increase in Professional services revenue was primarily due to increases in consulting revenues related to increased implementation sales of our Enterprise and Service Provider division's products. We currently target total revenue to increase when comparing the first quarter of 2014 to the first quarter of 2013. In addition, when comparing the 2014 fiscal year to the 2013 fiscal year we target total revenue to increase. The decrease in 2013 in gross margin as a percentage of net revenue is primarily due to the increase in sales of our Networking and Cloud products with a hardware component and increased sales of our services, both of which have a higher cost than our software products. We currently target gross margin as a percentage of net revenue to decline slightly when comparing the first quarter of 2014 to the first quarter of 2013, consistent with our targeted increase in sales of our hardware products and services. The decrease in Operating income and diluted net income per share when comparing 2013 to 2012 was primarily due to an increase in stock-based compensation costs primarily related to our retention-focused annual stock grant to

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key employees and our recent acquisitions and an increase in amortization of intangible assets primarily related to our recent acquisitions. Also contributing to the decrease in Operating income and diluted net income per share is the decrease in gross margin as a percentage of net revenue, as discussed above.

2013 Acquisitions

Zenprise

In January 2013, we acquired all of the issued and outstanding securities of Zenprise, a privately-held leader in mobile device management. Zenprise became part of our Enterprise and Service Provider division, in which Citrix has integrated the Zenprise offering for mobile device management into its XenMobile Enterprise edition. The total consideration for this transaction was approximately $324.0 million, net of $2.9 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $0.6 million, of which we expensed approximately $0.1 million during the year ended December 31, 2013 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisition, we assumed certain stock options, which are exercisable for 285,817 shares of our common stock, for which the vesting period reset fully upon the closing of the transaction.

2013 Other Acquisitions

During the third quarter of 2013, we acquired all of the issued and outstanding securities of a privately-held company. The total cash consideration for this transaction was approximately $5.3 million. We will pay contingent consideration of up to $3.0 million in cash upon the satisfaction of certain milestone achievements, as defined pursuant to the share purchase agreement. This business became part of our SaaS division. Transaction costs associated with the acquisition were approximately $0.2 million, all of which we expensed during the year ended December 31, 2013, and are included in General and administrative expense in the accompanying consolidated statements of income.

During the fourth quarter of 2013, we acquired all of the issued and outstanding securities of a privately-held company. The total cash consideration for this transaction was approximately $5.5 million. This business became part of our Enterprise and Service Provider division. Transaction costs associated with the acquisition were approximately $0.2 million,all of which we expensed during the year ended December 31, 2013, and are included in General and administrative expense in the accompanying consolidated statements of income.

We have included the effects of all of the companies acquired in 2013 in our results of operations prospectively from the date of each acquisition.

2012 Acquisitions

ByteMobile

In July 2012, we acquired all of the issued and outstanding securities of ByteMobile, a privately-held provider of data and video optimization solutions for mobile network operators. ByteMobile became part of our Enterprise and Service Provider division and extends our industry reach into the mobile and cloud markets. The total consideration for this transaction was approximately $399.5 million, net of $5.6 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $2.1 million, all of which we expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income.

Podio

In April 2012, we acquired all of the issued and outstanding securities of Podio, a privately-held provider of a cloud-based collaborative work platform. Podio became part of our SaaS division and expands our offerings of integrated cloud-based support for team-based collaboration. The total consideration for this transaction was approximately $43.6 million, net of $1.7 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $0.5 million, all of which we expensed during the year ended December 31, 2012 and are included in General and administrative expense in our accompanying consolidated statements of income. In addition, in connection with the acquisition, we assumed non-vested stock units which were converted into the right to receive up to 127,668 shares of our common stock, for which the vesting period reset fully upon the closing of the transaction.

2012 Other Acquisitions

During the first quarter of 2012, we acquired all of the issued and outstanding securities of a privately-held company for total cash consideration of approximately $24.6 million, net of $0.6 million of cash acquired. This business became part of our Enterprise and Service Provider division. Transaction costs associated with the acquisition were approximately $0.5 million, of which we expensed $0.4 million during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with this acquisition, we assumed non-vested stock units which were converted into the right to receive up to 13,481 shares of our common stock and assumed

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certain stock options which are exercisable for 12,017 shares of our common stock, for which the vesting period reset fully upon the closing of the transaction.

During the second quarter of 2012, we acquired all of the issued and outstanding securities of two privately-held companies for a total cash consideration of approximately $15.4 million, net of $0.2 million of cash acquired. The businesses became part of our Enterprise and Service Provider division. Transaction costs associated with the acquisitions were approximately $0.4 million, all of which we expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisitions, we assumed non-vested stock units which were converted into the right to receive, in the aggregate, up to 66,459 shares of our common stock, for which the vesting period reset fully upon the closing of each respective transaction.

During the third quarter of 2012, we acquired all of the issued and outstanding securities of two privately-held companies for a total cash consideration of approximately $5.3 million. One of the businesses became part of our Enterprise and Service Provider division and the other became part of our SaaS division. Transaction costs associated with the acquisitions were approximately $0.2 million, all of which we expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisitions, we assumed non-vested stock units which were converted into the right to receive, in the aggregate, up to 13,487 shares of our common stock, for which the vesting period reset fully upon the closing of each respective transaction.

Subsequent Events

On January 8, 2014, we acquired all of the issued and outstanding securities of Framehawk. The Framehawk solution, which optimizes the delivery of virtual desktops and applications to mobile devices, will be combined with Citrix HDX technologies in the Citrix XenApp and XenDesktop products to deliver an unparalleled user experience over highly latent and erratic mobile network conditions. The total preliminary consideration for this transaction was approximately $27.9 million, net of $0.3 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition are currently estimated at $0.1 million, all of which we expensed during the year ended December 31, 2013 and are included in General and administrative expense in the accompanying consolidated statements of income.

Critical Accounting Policies and Estimates

Our discussion and analysis of financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities. We base these estimates on our historical experience and on various other assumptions that we believe to be reasonable under the circumstances, and these estimates form the basis for our judgments concerning the carrying values of assets and liabilities that are not readily apparent from other sources. We periodically evaluate these estimates and judgments based on available information and experience. Actual results could differ from our estimates under different assumptions and conditions. If actual results significantly differ from our estimates, our financial condition and results of operations could be materially impacted.

We believe that the accounting policies described below are critical to understanding our business, results of operations and financial condition because they involve more significant judgments and estimates used in the preparation of our consolidated financial statements. An accounting policy is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, and if different estimates that could have been used, or changes in the accounting estimates that are reasonably likely to occur periodically, could materially impact our consolidated financial statements. We have discussed the development, selection and application of our critical accounting policies with the Audit Committee of our Board of Directors and our independent auditors, and our Audit Committee has reviewed our disclosure relating to our critical accounting policies and estimates in this “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Note 2 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 describes the significant accounting policies and methods used in the preparation of our Consolidated Financial Statements.

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Revenue Recognition

We recognize revenue when it is earned and when all of the following criteria are met: persuasive evidence of the arrangement exists; delivery has occurred or the service has been provided and we have no remaining obligations; the fee is fixed or determinable; and collectability is probable. We define these four criteria as follows:

• Persuasive evidence of the arrangement exists. We primarily sell our software products via electronic or paper licenses and typically require a purchase order from the distributor, reseller or end-user (depending on the arrangement) who have previously negotiated a master distribution or resale agreement and an executed product license agreement from the end-user. For appliance sales, our customary practice is to require a purchase order from distributors and resellers who have previously negotiated a master packaged product distribution or resale agreement. We typically recognize revenue upon shipment for our appliance sales. For maintenance, technical support, product training and consulting services, we require a purchase order and an executed agreement. For SaaS, we generally require the customer or the reseller to electronically accept the terms of an online services agreement or execute a contract.

• Delivery has occurred and we have no remaining obligations. We consider delivery of licenses under electronic licensing agreements to have occurred when the related products are shipped and the end-user has been electronically provided the software activation keys that allow the end-user to take immediate possession of the product. For hardware appliance sales, our standard delivery method is free-on-board shipping point. Consequently, we consider delivery of appliances to have occurred when the products are shipped pursuant to an agreement and purchase order. For SaaS, delivery occurs upon providing the users with their login id and password. For product training and consulting services, we fulfill our obligation when the services are performed. For license updates and maintenance, we assume that our obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 to 24 months. For SaaS, we assume that our obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 months.

• The fee is fixed or determinable. In the normal course of business, we do not provide customers with the right to a refund of any portion of their license fees or extended payment terms. The fees are considered fixed or determinable upon establishment of an arrangement that contains the final terms of the sale including description, quantity and price of each product or service purchased. For SaaS, the fee is considered fixed or determinable if it is not subject to refund or adjustment.

• Collectability is probable. We determine collectability on a customer-by-customer basis and generally do not require collateral. We typically sell product licenses and license updates to distributors or resellers for whom there are histories of successful collection. New customers are typically subject to a credit review process that evaluates their financial position and ultimately their ability to pay. Customers are also subject to an ongoing credit review process. If we determine from the outset of an arrangement that collectability is not probable, revenue recognition is deferred until customer payment is received and the other parameters of revenue recognition described above have been achieved. Management’s judgment is required in assessing the probability of collection, which is generally based on an evaluation of customer specific information, historical experience and economic market conditions.

The majority of our product and license revenue consists of revenue from the sale of stand-alone software products. Stand-alone software sales generally include a perpetual license to our software and are subject to the industry specific software revenue recognition guidance. In accordance with this guidance, we allocate revenue to license updates related to our stand-alone software and any other undelivered elements of the arrangement based on VSOE of fair value of each element and such amounts are deferred until the applicable delivery criteria and other revenue recognition criteria described above have been met. The balance of the revenues, net of any discounts inherent in the arrangement, is recognized at the outset of the arrangement using the residual method as the product licenses are delivered. If management cannot objectively determine the fair value of each undelivered element based on VSOE of fair value, revenue recognition is deferred until all elements are delivered, all services have been performed, or until fair value can be objectively determined. We also make certain judgments to record estimated reductions to revenue for customer programs and incentive offerings including volume-based incentives, at the time sales are recorded.

For hardware appliance and software transactions, the arrangement consideration is allocated to stand-alone software deliverables as a group and the non-software deliverables based on the relative selling prices of using the selling price hierarchy in the revenue recognition guidance. The selling price hierarchy for a deliverable is based on its VSOE if available, third-party evidence, or TPE, if VSOE is not available, or estimated selling price if neither VSOE nor TPE is available. We then recognize revenue on each deliverable in accordance with our policies for product and service revenue recognition. VSOE of selling price is based on the price charged when the element is sold separately. In determining VSOE, we require that a substantial majority of the selling prices fall within a reasonable range based on historical discounting trends for specific products and services. TPE

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of selling price is established by evaluating competitor products or services in stand-alone sales to similarly situated customers. However, as our products contain a significant element of proprietary technology and our solutions offer substantially different features and functionality, the comparable pricing of products with similar functionality typically cannot be obtained. Additionally, as we are unable to reliably determine what competitors products’ selling prices are on a stand-alone basis, we are not typically able to determine TPE. The estimate of selling price is established considering multiple factors including, but not limited to, pricing practices in different geographies and through different sales channels and competitor pricing strategies.

For our non-software transactions we allocate the arrangement consideration based on the relative selling price of the deliverables. For our hardware appliances we use ESP as our selling price. For our support and services, we generally use VSOE as our selling price. When we are unable to establish selling price using VSOE for our support and services, we use ESP in our allocation of arrangement consideration.

Our SaaS products are considered service arrangements per the authoritative guidance; accordingly, fees related to online service agreements are recognized ratably over the contract term. In addition, SaaS revenues may also include set-up fees, which are recognized ratably over the contract term or the expected customer life, whichever is longer. Generally, our SaaS is sold separately and not bundled with Enterprise and Service Provider division products and services. See Note 2 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for further information on our revenue recognition.

Stock-Based Compensation

Under the fair value recognition provisions of the authoritative guidance, stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the requisite service or performance period, which is the vesting period. We currently use the Black-Scholes option pricing model to determine the fair value of stock options and a Monte Carlo simulation model to determine the fair of non-vested stock unit awards that vest based on market and service conditions. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by our stock price as well as assumptions regarding a number of complex and subjective variables. These variables include our expected stock price volatility over the term of the awards, the expected term of the award, the risk-free interest rate and any expected dividends.

For stock options, we determine the expected volatility factor, by utilizing the implied volatility in two-year market-traded options on our common stock based on third party volatility quotes in accordance with the provisions of Staff Accounting Bulletin, or SAB, No. 107. Our decision to use implied volatility was based upon the availability of actively traded options on our common stock and our assessment that implied volatility is more representative of future stock price trends than historical volatility. The expected term of our options is based on historical employee exercise patterns. In years when a significant number of stock options are granted, we analyze our historical pattern of option exercises based on certain demographic characteristics annually and have historically determined that there were no meaningful differences in option exercise activity based on demographic characteristics. The approximate risk free interest rate is based on the implied yield available on U.S. Treasury zero-coupon issues with remaining terms equivalent to the expected term on our options. We do not intend to pay dividends on our common stock in the foreseeable future and, accordingly, we used a dividend yield of zero in the option pricing model.

For non-vested stock unit awards that vest based on market and service conditions, the attainment level under each award will be based on our total return to stockholders over the performance period compared to the return on the Nasdaq Composite Total Return Index, or the XCMP. The range of expected volatilities utilized was based on the historical volatilities of our common stock and the XCMP. We utilize historical volatility to value these awards because historical stock prices were used to develop the correlation coefficients between our stock performance and the XCMP in order to model the stock price movements. The volatilities used were calculated over the most recent 2.75 year period, which was the remaining term of the performance period at the date of grant. The risk free interest rate was based on the implied yield available on U.S. Treasury zero-coupon issues with remaining terms equivalent to the remaining performance period. We do not intend to pay dividends on our common stock in the foreseeable future; accordingly, we used a dividend yield of zero in our model.

We are required to estimate forfeitures at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. We use historical data to estimate pre-vesting option forfeitures and record stock-based compensation expense only for those awards that are expected to vest. All stock-based payment awards that vest based on service, including those with graded vesting schedules, are amortized on a straight-line basis over the requisite service periods of the awards, which are generally the vesting periods.

As of December 31, 2013, there was $267.6 million of total unrecognized compensation cost related to options and non-vested stock units. That cost is expected to be recognized over a weighted-average period of 2.14 years.

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If factors change and we employ different assumptions for estimating grant date fair value for our stock-based awards or in future periods if we decide to use a different valuation model, the stock-based compensation expense we recognize in future periods may differ significantly from what we have recorded in the current period and could materially affect our operating income, net income and earnings per share. This may result in a lack of consistency in future periods and materially affect the fair value estimate of stock-based payments. It may also result in a lack of comparability with other companies that use different models, methods and assumptions. The Black-Scholes option-pricing model was developed for use in estimating the fair value of traded options that have no vesting restrictions and are fully transferable. These characteristics are not present in our option grants. Existing valuation models, including the Black-Scholes models and Monte Carlo simulations, may not provide reliable measures of the fair values of our stock-based compensation. Consequently, there is a risk that our estimates of the fair values of our stock-based compensation awards on the grant dates may bear little resemblance to the actual values realized upon the exercise, expiration, early termination or forfeiture of those stock-based payments in the future. Certain stock-based payments, such as employee stock options, may expire with little or no intrinsic value compared to the fair values originally estimated on the grant date and reported in our financial statements. Alternatively, the value realized from these instruments may be significantly higher than the fair values originally estimated on the grant date and reported in our financial statements. There is currently no market-based mechanism or other practical application to verify the reliability and accuracy of the estimates stemming from these valuation models, nor is there a means to compare and adjust the estimates to actual values. See Notes 2 and 7 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for further information regarding our adoption of the authoritative guidance for stock-based compensation.

Valuation and Classification of Investments

The authoritative guidance defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). Our available-for-sale investments are measured to fair value on a recurring basis. In addition, we hold investments that are accounted for based on the cost method. These investments are periodically reviewed for impairment and when indicators of impairment exist, are measured to fair value as appropriate on a non-recurring basis. In determining the fair value of our investments we are sometimes required to use various alternative valuation techniques. The authoritative guidance establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available.

The authoritative guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1, observable inputs such as quoted prices in active markets for identical assets or liabilities, Level 2, inputs, other than quoted prices in active markets, that are observable either directly or indirectly, and Level 3, unobservable inputs in which there is little or no market data, which requires us to develop our own assumptions. Observable inputs are those that market participants would use in pricing the asset or liability that are based on market data obtained from independent sources, such as market quoted prices. When Level 1 observable inputs for our investments are not available to determine their fair value, we must then use other inputs which may include indicative pricing for securities from the same issuer with similar terms, yield curve information, benchmark data, prepayment speeds and credit quality or unobservable inputs that reflect our estimates of the assumptions market participants would use in pricing the investments based on the best information available in the circumstances. When valuation techniques, other than those described as Level 1 are utilized, management must make estimations and judgments in determining the fair value for its investments. The degree to which management’s estimation and judgment is required is generally dependent upon the market pricing available for the investments, the availability of observable inputs, the frequency of trading in the investments and the investment’s complexity. If we make different judgments regarding unobservable inputs we could potentially reach different conclusions regarding the fair value of our investments.

After we have determined the fair value of our investments, for those that are in an unrealized loss position, we must then determine if the investment is other-than-temporarily impaired. We review our investments quarterly for indicators of other-than-temporary impairment. This determination requires significant judgment and if different judgments are used the classification of the losses related to our investments could differ. In making this judgment, we employ a systematic methodology that considers available quantitative and qualitative evidence in evaluating potential impairment of our investments. If the carrying value of an available-for-sale investment exceeds its fair value, we evaluate, among other factors, general market conditions, the duration and extent to which the fair value is less than carrying value our intent to retain or sell the investment and whether it is more likely than not that we will not be required to sell the investment before the recovery of its amortized cost basis, which may not be until maturity. We also consider specific adverse conditions related to the financial health of and business outlook for the issuer, including industry and sector performance, rating agency actions and changes in credit default swap levels. For our cost method investments, our quarterly review of impairment indicators encompasses the analysis of specific criteria of the entity, such as cash position, financing needs, operational performance, management changes, competition and turnaround potential. If any of the above impairment indicators are present, we further evaluate whether an other-than-temporary impairment should be recorded. Once a decline in fair value is determined to be other-than-temporary, an impairment charge is recorded and a new cost basis in the investment is established. See Notes 4 and 5 to our consolidated

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financial statements and “Liquidity and Capital Resources” for more information on our investments and fair value measurements.

Intangible Assets

We have acquired product related technology assets and other intangible assets from acquisitions and other third party agreements. We allocate the purchase price of acquired intangible assets acquired through third party agreements based on their estimated relative fair values. We allocate a portion of purchase price of acquired companies to the product related technology assets and other intangible assets acquired based on their estimated fair values. We typically engage third party appraisal firms to assist us in determining the fair values and useful lives of product related technology assets and other intangible assets acquired. Such valuations and useful life determinations require us to make significant estimates and assumptions. These estimates are based on historical experience and information obtained from the management of the acquired companies and are inherently uncertain. Critical estimates in determining the fair value and useful lives of the product related technology assets include but are not limited to future expected cash flows earned from the product related technology and discount rates applied in determining the present value of those cash flows. Critical estimates in valuing certain other intangible assets include but are not limited to future expected cash flows from customer contracts, customer lists, distribution agreements, patents, brand awareness and market position, as well as discount rates.

Management's estimates of fair value are based upon assumptions believed to be reasonable. Unanticipated events and circumstances may occur which may affect the accuracy or validity of such assumptions, estimates or actual results.

We monitor acquired intangible assets for impairment on a periodic basis by reviewing for indicators of impairment. If an indicator exists we compare the estimated net realizable value to the unamortized cost of the intangible asset. The recoverability of the intangible assets is primarily dependent upon our ability to commercialize products utilizing the acquired technologies, retain existing customers and customer contracts, and maintain brand awareness. The estimated net realizable value of the acquired intangible assets is based on the estimated undiscounted future cash flows derived from such intangible assets. Our assumptions about future revenues and expenses require significant judgment associated with the forecast of the performance of our products, customer retention rates and ability to secure and maintain our market position. Actual revenues and costs could vary significantly from these forecasted amounts. As of December 31, 2013, the estimated undiscounted future cash flows expected from product related technology assets and other intangible assets from these acquisitions is sufficient to recover their carrying value. If these products are not ultimately accepted by our customers and distributors, and there is no alternative future use for the technology; or if we fail to retain acquired customers or successfully market acquired brands, we could determine that some or all of the remaining $509.6 million carrying value of our acquired intangible assets is impaired. In the event of impairment, we would record an impairment charge to earnings that could have a material adverse effect on our results of operations.

Goodwill

The excess of the fair value of purchase price over the fair values of the identifiable assets and liabilities from our acquisitions is recorded as goodwill. At December 31, 2013, we had $1,768.9 million in goodwill related to our acquisitions. The goodwill recorded in relation to these acquisitions is not deductible for tax purposes. Our revenues are derived from sales of our Enterprise and Service Provider division products, which include our Mobile and Desktop products, Networking and Cloud products and related license updates and maintenance and from sales of our SaaS division’s Collaboration and Data products. The Enterprise and Service Provider division and the SaaS division constitute our two reportable segments. See Note 11 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for additional information regarding our reportable segments. We evaluate goodwill between these segments, which represent our reporting units.

We account for goodwill in accordance with FASB’s authoritative guidance, which requires that goodwill and certain intangible assets are not amortized, but are subject to an annual impairment test. We complete our goodwill and certain intangible assets impairment test on an annual basis, during the fourth quarter of our fiscal year, or more frequently, if changes in facts and circumstances indicate that an impairment in the value of goodwill and certain intangible assets recorded on our balance sheet may exist.

In the fourth quarter of 2013, we performed a qualitative assessment to determine whether further quantitative impairment testing for goodwill and certain intangible assets is necessary, which we refer to this assessment as the Qualitative Screen. In performing the Qualitative Screen, we are required to make assumptions and judgments including but not limited to the following: the evaluation of macroeconomic conditions as related to our business, industry and market trends, and the overall future financial performance of our reporting units and future opportunities in the markets in which they operate. If after performing the Qualitative Screen impairment indicators are present, we would perform a quantitative impairment test to estimate the fair value of goodwill and certain intangible assets. In doing so, we would estimate future revenue, consider

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market factors and estimate our future cash flows. Based on these key assumptions, judgments and estimates, we determine whether we need to record an impairment charge to reduce the value of the goodwill and certain intangible assets carried on our balance sheet to its estimated fair value. Assumptions, judgments and estimates about future values are complex and often subjective and can be affected by a variety of factors, including external factors such as industry and economic trends, and internal factors such as changes in our business strategy or our internal forecasts. Although we believe the assumptions, judgments and estimates we have made have been reasonable and appropriate, different assumptions, judgments and estimates could materially affect our results of operations. As a result of the Qualitative Screen, no further quantitative impairment test was deemed necessary. There was no impairment of goodwill as a result of the annual impairment tests completed during the fourth quarters of 2013 and 2012.

Income Taxes

We are required to estimate our income taxes in each of the jurisdictions in which we operate as part of the process of preparing our consolidated financial statements. At December 31, 2013, we had approximately $150.4 million in net deferred tax assets. The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. We review deferred tax assets periodically for recoverability and make estimates and judgments regarding the expected geographic sources of taxable income and gains from investments, as well as tax planning strategies in assessing the need for a valuation allowance. At December 31, 2013, we determined that a $26.5 million valuation allowance relating to deferred tax assets for net operating losses and tax credits was necessary. If the estimates and assumptions used in our determination change in the future, we could be required to revise our estimates of the valuation allowances against our deferred tax assets and adjust our provisions for additional income taxes.

In the ordinary course of global business, there are transactions for which the ultimate tax outcome is uncertain, thus judgment is required in determining the worldwide provision for income taxes. We provide for income taxes on transactions based on our estimate of the probable liability. We adjust our provision as appropriate for changes that impact our underlying judgments. Changes that impact provision estimates include such items as jurisdictional interpretations on tax filing positions based on the results of tax audits and general tax authority rulings. Due to the evolving nature of tax rules combined with the large number of jurisdictions in which we operate, it is possible that our estimates of our tax liability and the realizability of our deferred tax assets could change in the future, which may result in additional tax liabilities and adversely affect our results of operations, financial condition and cash flows.

The following discussion relating to the individual financial statement captions, our overall financial performance, operations and financial position should be read in conjunction with the factors and events described in “— Overview” and Part 1 – Item 1A entitled “Risk Factors,” included in this Annual Report on Form 10-K for the year ended December 31, 2013, which could impact our future performance and financial position.

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Results of Operations

The following table sets forth our consolidated statements of income data and presentation of that data as a percentage of change from year-to-year (in thousands other than percentages):

	Year Ended December 31,								2013 Compared to 2012		2012 Compared to 2011
	2013			2012		2011
Revenues:
Product and licenses	$	891,630		$	830,645	$	744,513		7.3	%	11.6	%
Software as a service	582,872			511,323		430,213			14.0		18.9
License updates and maintenance	1,305,053			1,125,094		940,181			16.0		19.7
Professional services	138,879			119,061		91,485			16.6		30.1
Total net revenues	2,918,434			2,586,123		2,206,392			12.8		17.2
Cost of net revenues:
Cost of product and license revenues	114,932			96,962		74,393			18.5		30.3
Cost of services and maintenance revenues	289,990			227,150		164,465			27.7		38.1
Amortization of product related intangible assets	97,873			80,025		54,741			22.3		46.2
Total cost of net revenues	502,795			404,137		293,599			24.4		37.6
Gross margin	2,415,639			2,181,986		1,912,793			10.7		14.1
Operating expenses:
Research and development	516,338			450,571		380,674			14.6		18.4
Sales, marketing and services	1,216,680			1,060,829		885,066			14.7		19.9
General and administrative	260,236			245,259		213,673			6.1		14.8
Amortization of other intangible assets	41,668			34,549		16,390			20.6		110.8
Restructuring	—			—		24			*		*
Total operating expenses	2,034,922			1,791,208		1,495,827			13.6		19.7
Income from operations	380,717			390,778		416,966			(2.6	)	(6.3	)
Interest income	8,194			10,152		13,819			(19.3	)	(26.5	)
Other (expense) income, net	(1,021		)	9,299		(288		)	*		*
Income before income taxes	387,890			410,229		430,497			(5.4	)	(4.7	)
Income taxes	48,367			57,682		74,867			(16.1	)	(23.0	)
Consolidated net income	339,523			352,547		355,630			(3.7	)	(0.9	)
Less: Net loss attributable to non-controlling interest	—			—		692			*		*
Net income attributable to Citrix Systems, Inc.	$	339,523		$	352,547	$	356,322		(3.7	)%	(1.1	)%

* not meaningful

Revenues by Segment

Net revenues of our Enterprise and Service Provider division include Product and licenses, License updates and maintenance, and Professional services. Product and licenses primarily represent fees related to the licensing of the following major products:

• Mobile and Desktop is primarily comprised of our desktop and application virtualization products, which include XenDesktop and XenApp and our mobility products which include XenMobile products; and

• Networking and Cloud is primarily comprised of our cloud networking products, which include NetScaler, Cloud Bridge and ByteMobile Smart Capacity, and our cloud platform products, which include XenServer, CloudPlatform and CloudPortal.

In addition, we offer incentive programs to our VADs and VARs to stimulate demand for our products. Product and license revenues associated with these programs are partially offset by these incentives to our VADs and VARs.

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License updates and maintenance consists of:

• Our Subscription Advantage program, an annual renewable program that provides subscribers with automatic delivery of unspecified software upgrades, enhancements and maintenance releases when and if they become available during the term of the subscription, for which fees are recognized ratably over the term of the contract, which is typically 12 to 24 months; and

• Our maintenance fees, which include technical support and hardware and software maintenance, and which are recognized ratably over the contract term.

Professional services revenues are comprised of:

• Fees from consulting services related to implementation of our products, which are recognized as the services are provided; and

• Fees from product training and certification, which are recognized as the services are provided.

Our SaaS revenues, which are recognized ratably over the contractual term, consist of fees related to our SaaS products including:

• Collaboration products, which primarily include GoToMeeting, GoToWebinar and GoToTraining;

• Data Sharing product, which primarily includes ShareFile;

• Remote Access product, GoToMyPC; and

• Remote IT Support products, which primarily include GoToAssist.

	Year Ended December 31,						2013 Compared to 2012		2012 Compared to 2011
	2013		2012		2011
	(In thousands)
Revenues:
Product and licenses	$	891,630	$	830,645	$	744,513	$	60,985	$	86,132
Software as a Service	582,872		511,323		430,213		71,549		81,110
License updates and maintenance	1,305,053		1,125,094		940,181		179,959		184,913
Professional Services	138,879		119,061		91,485		19,818		27,576
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392	$	332,311	$	379,731

Product and licenses

Product and licenses revenue increased during 2013 when compared to 2012 primarily due to increased sales of our cloud networking products of $92.0 million, led by NetScaler, and increased sales of our mobility products of $26.2 million, partially offset by a decrease in sales of our desktop and application virtualization products of $60.0 million. Product and licenses revenue increased during 2012 when compared to 2011 primarily due to increased sales of our cloud networking products of $60.0 million, led by NetScaler, and increased sales of our desktop and application virtualization products, led by XenDesktop of $27.1 million. We currently target Product and licenses revenue to increase when comparing the first quarter of 2014 to the first quarter of 2013.

Software as a Service

Software as a Service revenue increased during 2013 when compared to 2012 primarily due to increased sales of our Collaboration products of $45.4 million and due to increased sales of our Data Sharing products of $15.9 million. Software as a Service revenue increased during 2012 compared to 2011 primarily due to increased sales of our Collaboration products of $61.0 million and increased sales of our Data Sharing products of $19.3 million. We currently target our Software as a Service revenue to increase when comparing the first quarter of 2014 to the first quarter of 2013 and when comparing the first quarter of 2014 to the fourth quarter of 2013.

License updates and maintenance

License updates and maintenance revenue increased during 2013 when compared to 2012 primarily due to an increase in maintenance revenues of $100.3 million, primarily driven by increased sales of maintenance and support contracts across all of our Enterprise and Service Provider division's products and an increase in sales and renewals of our Subscription Advantage product of $79.7 million. License updates and maintenance revenue increased during 2012 when compared to 2011 primarily due to an increase in sales and renewals of our Subscription Advantage product of $114.6 million and an increase in

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maintenance revenues of $45.2 million, primarily driven by increased sales of our Networking and Cloud products, led by NetScaler. We currently are targeting that License updates and maintenance revenue will increase when comparing the first quarter of 2014 to the first quarter of 2013.

Professional services

Professional services revenue increased during 2013 when compared to 2012 and during 2012 when compared to 2011 primarily due to increases in consulting revenues related to increased implementation sales of our Enterprise and Service Provider division's products. We currently target Professional services revenue to increase when comparing the first quarter of 2014 to the first quarter of 2013 consistent with the increase in Product and license revenue described above.

Deferred Revenue

Deferred revenues are primarily comprised of License updates and maintenance revenue from our Subscription Advantage product as well as maintenance and support contracts for our software and hardware products. Deferred revenues also include revenue from annual service agreements for our SaaS products and Professional services revenue primarily related to our consulting contracts. Deferred revenues increased approximately $213.7 million as of December 31, 2013 compared to December 31, 2012 primarily due to increased new and renewal sales of our Subscription Advantage product of $106.2 million; increased sales of our hardware and software maintenance contracts of $44.4 million and increased support contracts primarily related to our Mobile and Desktop products of $34.8 million. We currently target deferred revenue to increase in 2014.

While it is generally our practice to promptly ship our products upon receipt of properly finalized purchase orders, we sometimes have product license orders that have not shipped. Although the amount of such product license orders may vary, the amount, if any, of such product license orders at the end of a particular period has not been material to total revenue at the end of any reporting period. We do not believe that backlog, as of any particular date, is a reliable indicator of future performance.

International Revenues

International revenues (sales outside the United States) accounted for approximately 45.4% of our net revenues for the year ended December 31, 2013, 45.3% of our net revenues for the year ended December 31, 2012 and 43.2% of our net revenues for the year ended December 31, 2011. For detailed information on international revenues, please refer to Note 11 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Segment Revenues

Our revenues are derived from sales of Enterprise and Service Provider division products which primarily include Mobility and Desktop products, Networking and Cloud products and related License updates and maintenance and Professional services and from our SaaS division’s Collaboration and Data products. The Enterprise and Service Provider division and the SaaS division constitute our two reportable segments.

An analysis of our reportable segment net revenue is presented below:

	Year Ended December 31,						Revenue Growth		Revenue Growth
	2013		2012		2011		2013 to 2012		2012 to 2011
	(In thousands)
Enterprise and Service Provider division	$	2,335,562	$	2,074,800	$	1,778,646	12.6	%	16.7	%
SaaS division	582,872		511,323		427,746		14.0	%	19.5	%
Consolidated net revenues	$	2,918,434	$	2,586,123	$	2,206,392	12.8	%	17.2	%

With respect to our segment revenues, the increase in net revenues for the comparative periods presented was due primarily to the factors previously discussed above. See Note 11 of our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for additional information on our segment revenues.

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Cost of Net Revenues

	Year Ended December 31,						2013 Compared to 2012		2012 Compared to 2011
	2013		2012		2011
	(In thousands)
Cost of product and license revenues	$	114,932	$	96,962	$	74,393	$	17,970	$	22,569
Cost of services and maintenance revenues	289,990		227,150		164,465		62,840		62,685
Amortization of product related intangible assets	97,873		80,025		54,741		17,848		25,284
Total cost of net revenues	$	502,795	$	404,137	$	293,599	$	98,658	$	110,538

Cost of product and license revenues consists primarily of hardware, shipping expense, royalties, product media and duplication, manuals and packaging materials. Cost of services and maintenance revenues consists primarily of compensation and other personnel-related costs of providing technical support and consulting, as well as the costs related to providing our SaaS, which includes the cost to support the voice and video offerings in our Collaboration products. Also included in Cost of net revenues is amortization of product related intangible assets.

Cost of product and license revenues increased during 2013 when compared to 2012 and during 2012 when compared to 2011 primarily due to increased sales of our Networking and Cloud products, as described above, many of which contain hardware components that have a higher cost than our other software products. We currently are targeting cost of product and license revenues will increase when comparing the first quarter of 2014 to the first quarter of 2013 consistent with the targeted increase in sales of our hardware products.

Cost of services and maintenance revenues increased during 2013 compared to 2012 consistent with the increase in sales of our Collaboration products and cost for infrastructure to support the voice and video offerings in our Collaboration products of $30.5 million. Also contributing to the increase in Cost of services and maintenance revenues is an increase in consulting costs of $16.8 million and maintenance and support costs of $15.1 million related to increased sales of our Enterprise and Service Provider division's products as described above. Cost of services and maintenance revenues increased during 2012 compared to 2011 consistent with the increase in sales of our Collaboration products and continuing investment in infrastructure to support the voice and video offerings in our Collaboration products of $20.0 million. Also contributing to the increase in Cost of services and maintenance revenues is an increase in maintenance and support costs of $16.6 million and consulting costs of $15.7 million related to increased sales of our Enterprise and Service Provider division's products as described above. We currently are targeting cost of services and maintenance revenues will increase when comparing the first quarter of 2014 to the first quarter of 2013 consistent with the increase in Software as a Service and Professional services revenues as discussed above.

Gross Margin

Gross margin as a percent of revenue was 82.8% for 2013, 84.4% for 2012 and 86.7% for 2011. The decrease in gross margin as a percentage of net revenue is primarily due to the increase in sales of our Networking and Cloud products with a hardware component and increased sales of our services, both of which have a higher cost than our software products. When comparing the first quarter of 2014 to the first quarter of 2013, we expect a slight decline in gross margin, consistent with our targeted increase in sales of our hardware products and services.

Operating Expenses

Foreign Currency Impact on Operating Expenses

The functional currency for all of our wholly-owned foreign subsidiaries in our Enterprise and Service Provider division is the U.S. dollar. A substantial majority of our overseas operating expenses and capital purchasing activities are transacted in local currencies and are therefore subject to fluctuations in foreign currency exchange rates. In order to minimize the impact on our operating results, we generally initiate our hedging of currency exchange risks up to 12 months in advance of anticipated foreign currency expenses. When the dollar is weak, the resulting increase to foreign currency denominated expenses will be partially offset by the gain in our hedging contracts. When the dollar is strong, the resulting decrease to foreign currency denominated expenses will be partially offset by the loss in our hedging contracts. There is a risk that there will be fluctuations in foreign currency exchange rates beyond the timeframe for which we hedge our risk.

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Research and Development Expenses

	Year Ended December 31,						2013 Compared to 2012		2012 Compared to 2011
	2013		2012		2011
	(In thousands)
Research and development	$	516,338	$	450,571	$	380,674	$	65,767	$	69,897

Research and development expenses consisted primarily of personnel related costs and facility and equipment costs directly related to our research and development activities. We expensed substantially all development costs included in the research and development of our products.

Research and development expenses increased during 2013 as compared to 2012 primarily due to an increase in compensation, including stock-based compensation and employee-related costs, primarily related to increased headcount from strategic hiring and acquisitions.

Research and development expenses increased during 2012 as compared to 2011 due to a $35.8 million increase in compensation and other employee-related costs, primarily related to increased headcount due to strategic hiring and acquisitions, and an increase in stock-based compensation expense of $22.0 million, primarily related to retention-focused awards granted to new and existing employees and assumed in conjunction with our acquisitions. Also contributing to the increase in Research and development expenses when comparing 2012 to 2011 is a $13.5 million increase in facilities costs and related depreciation, consistent with the increase in headcount.

Sales, Marketing and Services Expenses

	Year Ended December 31,						2013 Compared to 2012		2012 Compared to 2011
	2013		2012		2011
	(In thousands)
Sales, marketing and services	$	1,216,680	$	1,060,829	$	885,066	$	155,851	$	175,763

Sales, marketing and services expenses consisted primarily of personnel related costs, including sales commissions, pre-sales support, the costs of marketing programs aimed at increasing revenue, such as brand development, advertising, trade shows, public relations and other market development programs and costs related to our facilities, equipment and information systems that are directly related to our sales, marketing and services activities.

Sales, marketing and services expenses increased during 2013 compared to 2012 primarily due to a $91.5 million increase in compensation, including variable and stock-based compensation and employee-related costs due to additional headcount in our sales force and professional services group, as well as from our acquisitions. Also contributing to the increase in Sales, marketing and services expense when comparing 2013 to 2012 is a $30.9 million increase in facilities costs and related depreciation, consistent with the increase in headcount and a $21.0 million increase in marketing program costs related to various marketing campaigns and events.

Sales, marketing and services expenses increased during 2012 compared to 2011 primarily due to a $132.9 million increase in compensation, including variable and stock-based compensation and employee-related costs due to additional headcount in our sales force and professional services group, as well as from our acquisitions. Also contributing to the increase in Sales, marketing and services expense when comparing 2012 to 2011 is an $18.7 million increase in facilities costs and related depreciation, consistent with the increase in headcount.

General and Administrative Expenses

	Year Ended December 31,						2013 Compared to 2012		2012 Compared to 2011
	2013		2012		2011
	(In thousands)
General and administrative	$	260,236	$	245,259	$	213,673	$	14,977	$	31,586

General and administrative expenses consisted primarily of personnel related costs and expenses related to outside consultants assisting with information systems, as well as accounting and legal fees.

General and administrative expenses increased during 2013 compared to 2012 primarily due to an increase in compensation and employee related costs of $11.8 million due to additional headcount, primarily in information technology

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and facilities, as well as from our acquisitions. Also contributing to the increase in General and administrative expense when comparing 2013 to 2012 is an increase in stock-based compensation expense of $10.7 million related to retention-focused stock-based awards granted to new and existing employees and assumed in connection with acquisitions. These increases were partially offset by a decrease in certain facility and depreciation costs of $7.7 million due to a lower allocation of these costs as employees are being added at a slower rate in general and administrative functions compared to research and development and sales, marketing and services.

General and administrative expenses increased during 2012 compared to 2011 primarily due to an increase in compensation and employee related costs of $20.2 million due to additional headcount, primarily in operations, as well as from our acquisitions. Also contributing to the increase in General and administrative expense when comparing 2012 to 2011 is an increase in stock-based compensation expense of $13.6 million related to retention-focused stock-based awards granted to new and existing employees and assumed in connection with acquisitions.

2014 Operating Expense Outlook

When comparing the first quarter of 2014 to the fourth quarter of 2013, we are targeting operating expenses to increase in Research and development as we continue to bring to market new technologies and improve integration of existing technologies and in Sales, marketing and services as we continue to focus on hiring to expand our go-to-market capacity and customer direct touch, as well as increasing consulting and technical support capacity.

Amortization of Other Intangible Assets

	Year Ended December 31,						2013 Compared to 2012		2012 Compared to 2011
	2013		2012		2011
	(In thousands)
Amortization of other intangible assets	$	41,668	$	34,549	$	16,390	$	7,119	$	18,159

Amortization of other intangible assets consists of amortization of customer relationships, trade names and covenants not to compete primarily related to our acquisitions. The increase in Amortization of other intangible assets when comparing 2013 to 2012 was primarily due to amortization of other intangible assets acquired in conjunction with our acquisitions, primarily Zenprise.

The increase in Amortization of other intangible assets when comparing 2012 to 2011 was primarily due to amortization of other intangible assets acquired in conjunction with our acquisitions, primarily ByteMobile. Also contributing to the increase is a $5.2 million impairment related to our decision to contribute our CloudStack tradename acquired in conjunction with our acquisition of Cloud.com to the Apache Software Foundation in 2012.

As of December 31, 2013, we had unamortized other identified intangible assets with estimable useful lives in the net amount of $260.5 million. For more information regarding our acquisitions see, “— Overview” and Note 3 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Other (expense) income, net

	Year Ended December 31,								2013 Compared to 2012			2012 Compared to 2011
	2013			2012		2011
	(In thousands)
Other (expense) income, net	$	(1,021	)	$	9,299	$	(288	)	$	(10,320	)	$	9,587

Other (expense) income, net is primarily comprised of remeasurement of foreign currency transaction gains (losses), realized losses related to changes in the fair value of our investments that have a decline in fair value considered other-than-temporary and recognized gains (losses) related to our investments and interest expense, which was not material for all periods presented.

The change in Other (expense) income, net when comparing 2013 to 2012 is primarily driven by strategic investment activity. 2013 included a gain of $6.0 million and 2012 included a gain of $16.5 million from the sales of companies we invest in.

The change in Other (expense) income, net when comparing 2012 to 2011 is primarily due to a $16.5 million increase in gain on our strategic investments due to the sale of companies that we invested in, partially offset by a loss on remeasurement of our foreign currency transactions of $7.9 million. For more information see “— Liquidity and Capital Resources” and Note 4 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

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Income Taxes

We and certain of our subsidiaries are subject to U.S. federal income taxes, as well as income taxes of multiple state and foreign jurisdictions. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S., income tax examinations by tax authorities for years prior to 2009.

In the ordinary course of global business, there are transactions for which the ultimate tax outcome is uncertain and judgment is required in determining the worldwide provision for income taxes. We provide for income taxes on transactions based on our estimate of the probable liability. We adjust our provision as appropriate for changes that impact our underlying judgments. Changes that impact provision estimates include such items as jurisdictional interpretations on tax filing positions based on the results of tax audits and general tax authority rulings. Due to the evolving nature of tax rules combined with the large number of jurisdictions in which we operate, it is possible that our estimates of our tax liability and the realizability of our deferred tax assets could change in the future, which may result in additional tax liabilities and adversely affect our results of operations, financial condition and cash flows.

We are required to estimate our income taxes in each of the jurisdictions in which we operate as part of the process of preparing our consolidated financial statements. At December 31, 2013, we had approximately $150.4 million in net deferred tax assets. The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. We review deferred tax assets periodically for recoverability and make estimates and judgments regarding the expected geographic sources of taxable income and gains from investments, as well as tax planning strategies in assessing the need for a valuation allowance. At December 31, 2013, we determined that $26.5 million valuation allowance relating to deferred tax assets for net operating losses and tax credits was necessary. If the estimates and assumptions used in our determination change in the future, we could be required to revise our estimates of the valuation allowances against our deferred tax assets and adjust our provisions for additional income taxes.

We maintain certain strategic management and operational activities in overseas subsidiaries and our foreign earnings are taxed at rates that are generally lower than in the United States. We do not expect to remit earnings from our foreign subsidiaries. Our effective tax rate was approximately 12.5% for the year ended December 31, 2013 and 14.1% for the year ended December 31, 2012. The decrease in the effective tax rate when comparing the year ended December 31, 2013 to the year ended December 31, 2012 was primarily due to 2012 not including the U.S. research and development tax credit and 2013 including the U.S. research and development tax credit for both the 2012 and 2013 tax years as the law extending the credit for 2012 was not enacted until 2013.

Our effective tax rate generally differs from the U.S. federal statutory rate of 35% due primarily to lower tax rates on earnings generated by our foreign operations that are taxed primarily in Switzerland. We have not provided for U.S. taxes for those earnings because we plan to reinvest all of those earnings indefinitely outside the United States. Our effective tax rate will fluctuate based on the mix of earnings from our U.S. and foreign jurisdictions. Accordingly, earnings from the production and distribution of our products and services through our foreign headquarters in Switzerland are currently taxed at lower income tax rates than earnings from our U.S. operations.

The federal research and development credit expired on December 31, 2011. On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law. Under this act, the federal research and development credit was retroactively extended for amounts paid or incurred after December 31, 2011 and before January 1, 2014. The effects of these changes in the tax law resulted in net tax benefits of approximately $10.7 million, which were recognized in 2013, the year in which the law was enacted.

We currently target our effective tax rate to increase in 2014 compared to 2013 due to the expiration of the U.S. research and development tax credit, which has not been renewed.

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Liquidity and Capital Resources

During 2013, we generated operating cash flows of $928.3 million. These operating cash flows related primarily to net income of $339.5 million, adjusted for, among other things, non-cash charges, including depreciation and amortization expenses of $267.5 million and stock-based compensation expense of $183.9 million. Also contributing to these cash inflows was an aggregate increase in operating assets and liabilities of $182.3 million, net of effects of acquisitions. Our investing activities used $938.2 million of cash consisting primarily of net purchases of investments of $433.5 million, cash paid for acquisitions of $334.9 million and cash paid for the purchase of property and equipment of $162.9 million. Our financing activities used cash of $352.3 million primarily due to stock repurchases of $406.3 million. This financing cash outflow was partially offset by proceeds received from the issuance of common stock under our employee stock-based compensation plans of $73.7 million.

During 2012, we generated operating cash flows of $818.5 million. These operating cash flows related primarily to net income of $352.5 million, adjusted for, among other things, non-cash charges including depreciation and amortization expenses of $214.9 million and stock-based compensation expense of $149.9 million. Also contributing to these cash inflows was an aggregate increase in operating assets and liabilities of $180.5 million, net of the effects of acquisitions. Our investing activities used $357.9 million of cash consisting primarily of cash paid for acquisitions of $487.2 million, the purchase of property and equipment of $123.0 million and $34.4 million in cash paid for licensing agreements and product related intangible assets and other investments. These investing cash outflows were partially offset by net sales of investments of $258.9 million. Our financing activities used cash of $149.8 million primarily due to stock repurchases of $251.0 million. This financing cash outflow was partially offset by proceeds received from the issuance of common stock under our employee stock-based compensation plans of $108.4 million.

Historically, significant portions of our cash inflows were generated by our operations. We currently expect this trend to continue throughout 2014. We believe that our existing cash and investments together with cash flows expected from operations will be sufficient to meet expected operating and capital expenditure requirements for the next 12 months. We continue to search for suitable acquisition candidates and could acquire or make investments in companies we believe are related to our strategic objectives. We could from time to time seek to raise additional funds through the issuance of debt or equity securities for larger acquisitions.

Cash, Cash Equivalents and Investments

	December 31,				2013 Compared to 2012
	2013		2012
	(In thousands)
Cash, cash equivalents and investments	$	1,590,416	$	1,523,944	$	66,472

The increase in cash, cash equivalents and investments at December 31, 2013 as compared to December 31, 2012, is primarily due to cash provided by our operating activities of $928.3 million and cash received from the issuance of common stock under our employee stock-based compensation plans of $73.7 million, partially offset by expenditures made on stock repurchases of $406.3 million, cash paid for acquisitions, net of cash acquired, of $334.9 million and purchases of property and equipment of $162.9 million. As of December 31, 2013, $1,059.9 million of the $1,590.4 million of cash, cash equivalents and investments was held by our foreign subsidiaries. If these funds are needed for our operations in the United States, we would be required to accrue and pay U.S. taxes to repatriate these funds. Our current plans are not expected to require repatriation of cash and investments to fund our U.S. operations and, as a result, we intend to permanently reinvest our foreign earnings. See “– Liquidity and Capital Resources.” We generally invest our cash and cash equivalents in investment grade, highly liquid securities to allow for flexibility in the event of immediate cash needs. Our short-term and long-term investments primarily consist of interest-bearing securities.

Fair Value Measurements

The authoritative guidance defines fair value as an exit price, representing the amount that would either be received to sell an asset or be paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

• Level 1. Observable inputs such as quoted prices in active markets for identical assets or liabilities;

• Level 2. Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and

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• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Available-for-sale securities included in Level 2 are valued utilizing inputs obtained from an independent pricing service, or the Service, which uses quoted market prices for identical or comparable instruments rather than direct observations of quoted prices in active markets. The Service gathers observable inputs for all of our fixed income securities from a variety of industry data providers including, for example, large custodial institutions and other third-party sources. Once the observable inputs are gathered by the Service, all data points are considered and an average price is determined. The Service’s providers utilize a variety of inputs to determine their quoted prices. These inputs may include interest rates, known historical trades, yield curve information, benchmark data, prepayment speeds, credit quality and broker/dealer quotes. Substantially all of our available-for-sale investments are valued utilizing inputs obtained from the Service and accordingly are categorized as Level 2 in the table below. We periodically independently assess the pricing obtained from the Service and historically have not adjusted the Service's pricing as a result of this assessment. Available-for-sale securities are included in Level 3 when relevant observable inputs for a security are not available.

Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy. In certain instances, the inputs used to measure fair value may meet the definition of more than one level of the fair value hierarchy. The input with the lowest level priority is used to determine the applicable level in the fair value hierarchy.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Our fixed income available-for-sale security portfolio generally consists of high quality, investment grade securities from diverse issuers with a minimum credit rating of A-/A3 and a minimum weighted-average credit rating of AA-/Aa3. We values these securities based on pricing from the Service, whose sources may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value, and accordingly, we classify all of our fixed income available-for-sale securities as Level 2. See Note 4 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for more information regarding our available-for-sale investments.

We measure our cash flow hedges, which are classified as Prepaid expenses and other current assets and Accrued expenses and other current liabilities, at fair value based on indicative prices in active markets (Level 2 inputs).

Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)

We have invested in convertible debt securities of certain early-stage entities that are classified as available-for-sale investments. As quoted prices in active markets or other observable inputs were not available for these investments, in order to measure them at fair value, we utilized a discounted cash flow model using a discount rate reflecting the market risk inherent in holding securities of an early-stage enterprise, adjusted by the probability-weighted exit possibilities associated with the convertible debt securities. This methodology required us to make assumptions that were not directly or indirectly observable regarding the fair value of the convertible debt securities; accordingly they are a Level 3 valuation and included in the table below.

	Investments
	(in thousands)
Balance at December 31, 2012	$	3,341
Purchases of Level 3 securities	9,700
Transfers out of Level 3	(2,750		)
Balance at December 31, 2013	$	10,291

Transfers out of Level 3 relate to certain of our investments in convertible debt securities of early-stage entities that were classified as available-for-sale investments to cost method investments upon conversion to equity ownership, which are included in Other assets in our accompanying consolidated balance sheets.

Assets Measured at Fair Value on a Non-recurring Basis Using Significant Unobservable Inputs (Level 3)

During 2013, certain cost method investments with a combined carrying value of $9.3 million were determined to be impaired and have been written down to their fair values of $5.6 million, resulting in impairment charges of $3.7 million.

During 2012, certain cost method investments with a combined carrying value of $13.0 million were determined to be impaired and have been written down to their fair values of $9.5 million resulting in impairment charges of $3.5 million.

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The impairment charges are included in Other (expense) income, net in the accompanying consolidated financial statements for the years ended December 31, 2013 and 2012. In determining the fair value of cost method investments, we consider many factors including but not limited to operating performance of the investee, the amount of cash that the investee has on-hand, the ability to obtain additional financing and the overall market conditions in which the investee operates. The fair value of the cost method investment represents a Level 3 valuation as the assumptions used in valuing this investment were not directly or indirectly observable. See Note 4 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for further information regarding cost method investments.

Additional Disclosures Regarding Fair Value Measurements

The carrying value of accounts receivable, accounts payable and accrued expenses and other current liabilities approximate their fair value due to the short maturity of these items.

Accounts Receivable, Net

	December 31,						2013 Compared to 2012
	2013			2012
	(In thousands)
Accounts receivable	$	660,175		$	637,403		$	22,772
Allowance for returns	(2,062		)	(2,564		)	502
Allowance for doubtful accounts	(3,292		)	(3,883		)	591
Accounts receivable, net	$	654,821		$	630,956		$	23,865

The increase in accounts receivable at December 31, 2013 compared to December 31, 2012 was primarily due to an increase in sales, particularly in the last month of 2013 compared to the last month of 2012. The activity in our allowance for returns was comprised primarily of $5.0 million in credits issued for returns partially offset by $4.5 million of provisions for returns recorded during 2013. The activity in our allowance for doubtful accounts was comprised primarily of $1.6 million of uncollectible accounts written off, net of recoveries, partially offset by $1.0 million in additional provisions for doubtful accounts.

From time to time, we could maintain individually significant accounts receivable balances from our distributors or customers, which are comprised of large business enterprises, governments and small and medium-sized businesses. If the financial condition of our distributors or customers deteriorates, our operating results could be adversely affected. At December 31, 2013, one distributor, Ingram Micro, accounted for 10% of our accounts receivable. At December 31, 2012, one distributor, Ingram Micro, accounted for 11% of our accounts receivable. For more information regarding significant customers see Note 11 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Stock Repurchase Program

Our Board of Directors authorized an ongoing stock repurchase program with a total repurchase authority granted to us of $3.9 billion, of which $500.0 million was approved in October 2013. We may use the approved dollar authority to repurchase stock at any time until the approved amounts are exhausted. The objective of our stock repurchase program is to improve stockholders’ returns. At December 31, 2013, approximately $429.3 million was available to repurchase common stock pursuant to the stock repurchase program. All shares repurchased are recorded as treasury stock in our consolidated balance sheets included in this Annual Report on Form 10-K for the year ended December 31, 2013. A portion of the funds used to repurchase stock over the course of the program was provided by proceeds from employee stock option exercises and the related tax benefit.

We are authorized to make open market purchases of our common stock using general corporate funds through open market purchases or pursuant to a Rule 10b5-1 plan.

During the year ended December 31, 2013, we expended approximately $406.3 million on open market purchases, repurchasing 6,563,986 shares of outstanding common stock at an average price of $61.90.

During the year ended December 31, 2012, we expended approximately $251.0 million on open market purchases, repurchasing 3,550,817 shares of outstanding common stock at an average price of $70.69.

During the year ended December 31, 2011, we expended approximately $424.8 million on open market purchases, repurchasing 6,275,470 shares of outstanding common stock at an average price of $67.70.

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Shares for Tax Withholding

During the years ended December 31, 2013, we withheld 444,657 shares, in 2012 we withheld 269,745 shares and in 2011, we withheld 182,203 shares from stock units that vested. Amounts withheld to satisfy minimum tax withholding obligations that arose on the vesting of stock unit awards was $31.0 million for 2013, $20.2 million for 2012 and $13.3 million for 2011. These shares are reflected as treasury stock in our consolidated balance sheets included in this Annual Report on Form 10-K for the year ended December 31, 2013 and the related cash outlays reduce our total stock repurchase authority.

Contractual Obligations and Off-Balance Sheet Arrangement

Contractual Obligations

We have certain contractual obligations that are recorded as liabilities in our consolidated financial statements. Other items, such as operating lease obligations, are not recognized as liabilities in our consolidated financial statements, but are required to be disclosed in the notes to our consolidated financial statements.

The following table summarizes our significant contractual obligations at December 31, 2013 and the future periods in which such obligations are expected to be settled in cash. Additional details regarding these obligations are provided in the notes to our consolidated financial statements (in thousands):

	Payments due by period
	Total		Less than 1 Year		1-3 Years		3-5 Years		More than 5 Years
Operating lease obligations(1)	$	276,590	$	60,982	$	86,123	$	40,600	$	88,885
Purchase obligations(2)	31,300		31,300		—		—		—
Total contractual obligations(3)	$	307,890	$	92,282	$	86,123	$	40,600	$	88,885

⁽¹⁾  In 2012, we entered into a lease to acquire additional office space in Santa Clara, CA. The rental commencement date will not begin until 2015 and the pricing for the lease will not be finalized until a future date. Accordingly, the future payment obligations related to this lease are not included in the table above. 

⁽²⁾  Purchase obligations represent non-cancelable commitments to purchase inventory ordered before year-end of approximately $13.1 million and a contingent obligation to purchase inventory, which is based on amount of usage, of approximately $18.2 million.

⁽³⁾  Total contractual obligations do not include agreements where our commitment is variable in nature or where cancellations without payment provisions exist and excludes $63.8 million of liabilities related to uncertain tax positions recorded in accordance with authoritative guidance, because we could not make reasonably reliable estimates of the period or amount of cash settlement with the respective taxing authorities. See Note 10 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013 for further information.

As of December 31, 2013, we did not have any individually material capital lease obligations or other material long-term commitments reflected on our consolidated balance sheets.

Off-Balance Sheet Arrangements

We do not have any special purpose entities or off-balance sheet financing arrangements.

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The following discussion about our market risk includes “forward-looking statements” that involve risks and uncertainties. Actual results could differ materially from those projected in the forward-looking statements. The analysis methods we used to assess and mitigate risk discussed below should not be considered projections of future events, gains or losses.

We are exposed to financial market risks, including changes in foreign currency exchange rates and interest rates that could adversely affect our results of operations or financial condition. To mitigate foreign currency risk, we utilize derivative financial instruments. The counterparties to our derivative instruments are major financial institutions. All of the potential changes noted below are based on sensitivity analyses performed on our financial position as of December 31, 2013. Actual results could differ materially.

Discussions of our accounting policies for derivatives and hedging activities are included in Notes 2 and 12 to our consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2013.

Exposure to Exchange Rates

A substantial majority of our overseas expense and capital purchasing activities are transacted in local currencies, including Euros, British pounds sterling, Japanese yen, Australian dollars, Swiss francs, Indian rupees, Hong Kong dollars, Canadian dollars, Singapore dollars and Chinese renminbi. To reduce the volatility of future cash flows caused by changes in currency exchange rates, we have established a hedging program. We use foreign currency forward contracts to hedge certain forecasted foreign currency expenditures. Our hedging program significantly reduces, but does not entirely eliminate, the impact of currency exchange rate movements.

At December 31, 2013 and 2012, we had in place foreign currency forward sale contracts with a notional amount of $49.7 million and $104.2 million, respectively, and foreign currency forward purchase contracts with a notional amount of $210.7 million and $252.8 million, respectively. At December 31, 2013, these contracts had an aggregate fair value asset of $3.2 million and at December 31, 2012, these contracts had an aggregate fair value asset of $0.4 million. Based on a hypothetical 10% appreciation of the U.S. dollar from December 31, 2013 market rates, the fair value of our foreign currency forward contracts would decrease by $16.4 million. Conversely, a hypothetical 10% depreciation of the U.S. dollar from December 31, 2013 market rates would increase the fair value of our foreign currency forward contracts by $16.4 million. In these hypothetical movements, foreign operating costs would move in the opposite direction. This calculation assumes that each exchange rate would change in the same direction relative to the U.S. dollar. In addition to the direct effects of changes in exchange rates quantified above, changes in exchange rates could also change the dollar value of sales and affect the volume of sales as the prices of our competitors’ products become more or less attractive. We do not anticipate any material adverse impact to our consolidated financial position, results of operations, or cash flows as a result of these foreign exchange forward contracts.

Exposure to Interest Rates

We have interest rate exposures resulting from our interest-based available-for-sale investments. We maintain available-for-sale investments in debt securities and we limit the amount of credit exposure to any one issuer or type of instrument. The securities in our investment portfolio are not leveraged. The securities classified as available-for-sale are subject to interest rate risk. The modeling technique used measures the change in fair values arising from an immediate hypothetical shift in market interest rates and assumes that ending fair values include principal plus accrued interest and reinvestment income. If market interest rates were to increase by 100 basis points from December 31, 2013 and 2012 levels, the fair value of the available-for-sale portfolio would decline by approximately $13.2 million and $9.2 million, respectively. If market interest rates were to decrease by 100 basis points from December 31, 2013 and 2012 levels, the fair value of the available-for-sale portfolio would increase by approximately $8.0 million and $5.1 million, respectively. These amounts are determined by considering the impact of the hypothetical interest rate movements on our available-for-sale and trading investment portfolios. This analysis does not consider the effect of credit risk as a result of the changes in overall economic activity that could exist in such an environment.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Our consolidated financial statements and related financial statement schedule, together with the report of independent registered public accounting firm, appear at pages F-1 through F-36 of this Annual Report on Form 10-K for the year ended December 31, 2013.

51

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

There have been no changes in or disagreements with our independent registered public accountants on accounting or financial disclosure matters during our two most recent fiscal years.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As of December 31, 2013, our management, with the participation of our President and Chief Executive Officer and our Executive Vice President, Chief Operating Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) promulgated under the Securities Exchange Act of 1934, as amended, or the Exchange Act. Based upon that evaluation, our President and Chief Executive Officer and our Executive Vice President, Chief Operating Officer and Chief Financial Officer concluded that, as of December 31, 2013, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our President and Chief Executive Officer and our Executive Vice President, Chief Operating Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

During the quarter ended December 31, 2013, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management’s Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as such term is defined in Exchange Act Rule 13a – 15(f). Our internal control system was designed to provide reasonable assurance to our management and the Board of Directors regarding the preparation and fair presentation of published financial statements. All internal control systems, no matter how well designed have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2013. In making this assessment, our management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission, or COSO, in the 1992 Internal Control—Integrated Framework (the COSO criteria). Based on our assessment we believe that, as of December 31, 2013, our internal control over financial reporting is effective based on those criteria. The effectiveness of our internal control over financial reporting as of December 31, 2013 has been audited by Ernst & Young LLP, an independent registered public accounting firm, as stated in their report which appears below.

52

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of Citrix Systems, Inc.

We have audited Citrix Systems, Inc.’s internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) (the COSO criteria). Citrix Systems, Inc.’s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Citrix Systems, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Citrix Systems, Inc. as of December 31, 2013 and 2012, and the related consolidated statements of income, comprehensive income, equity, and cash flows for each of the three years in the period ended December 31, 2013 and our report dated February 20, 2014 expressed an unqualified opinion thereon. 

/s/ Ernst & Young LLP

Certified Public Accountants

Boca Raton, Florida

February 20, 2014

53

ITEM 9B. OTHER INFORMATION

Our policy governing transactions in our securities by our directors, officers and employees permits our officers, directors and certain other persons to enter into trading plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. We have been advised that Stephen Dow, a member of our Board of Directors and Sudhakar Ramakrishna, our Senior Vice President and General Manager Enterprise and Service Provider Division, each entered into a new trading plan in the fourth quarter of 2013 in accordance with Rule 10b5-1 and our policy governing transactions in our securities. We undertake no obligation to update or revise the information provided herein, including for revision or termination of an established trading plan.

54

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 31, 2013.

ITEM 11. EXECUTIVE COMPENSATION

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 31, 2013.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 31, 2013.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 31, 2013.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 31, 2013.

55

PART IV

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) 1. Consolidated Financial Statements.

For a list of the consolidated financial information included herein, see page F-1.

2. Financial Statement Schedules.

The following consolidated financial statement schedule is included in Item 8:

Valuation and Qualifying Accounts

3. List of Exhibits.

56

Exhibit No.	Description
3.1	Amended and Restated Certificate of Incorporation of the Company (incorporated herein by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on May 29, 2013
3.2	Amended and Restated By-laws of the Company (incorporated herein by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed on May 29, 2013
4.1	Specimen certificate representing Common Stock (incorporated herein by reference to Exhibit 4.1 to the Company's Registration Statement on Form S-1 (File No. 33-98542), as amended)
10.1*	Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2010)
10.2*	First Amendment to Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated as of May 28, 2010)
10.3*	Second Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated as of June 2, 2011)
10.4*	Third Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K dated as of June 2, 2011)
10.5*	Fourth Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated as of May 31, 2012)
10.6*	Fifth Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2013)
10.7*	Sixth Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on May 29, 2013)
10.8*	Form of Global Stock Option Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.9*	Form of Restricted Stock Unit Agreement For Non-Employee Directors under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.10*	Form of Global Restricted Stock Unit Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (Performance Based Awards) (incorporated herein by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.11*	Form of Global Restricted Stock Unit Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (Time Based Awards) (incorporated herein by reference to Exhibit 10.4 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.12*	Form of Global Restricted Stock Unit Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (Long Term Incentive) (incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2012)
10.13*	Form of Long Term Incentive Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2009)
10.14*	Amended and Restated 2005 Employee Stock Purchase Plan (incorporated by reference herein to Exhibit 10.14 to the Company's Annual Report on Form 10-K for the year ended December 31, 2011)
10.15*	Amendment to Amended and Restated 2005 Employee Stock Purchase Plan (incorporated by reference herein to Exhibit 10.17 to the Company's Annual Report on Form 10-K for the year ended December 31, 2012)
10.16*†	Citrix Systems, Inc. Executive Bonus Plan
10.17*	Change in Control Agreement dated as of August 4, 2005 by and between the Company and Mark B. Templeton (incorporated by reference herein to Exhibit 10.11 to the Company's Annual Report on Form 10-K for the year ended December 31, 2010)

57

Exhibit No.	Description
10.18*	Form of Change in Control Agreement by and between the Company and each of David J. Henshall, David R. Freidman, Brett M. Caine, Alvaro J. Monserrat and John Gordon Payne (incorporated by reference herein to Exhibit 10.12 to the Company's Annual Report on Form 10-K for the year ended December 31, 2010)
10.19*†	Form of First Amendment to Change of Control Agreement (Chief Executive Officer) between the Company and Mark Templeton
10.20*†	Form of First Amendment to Change of Control Agreement between the Company and each of Brett M. Caine, David J. Henshall, David R. Friedman and Alvaro J. Monserrat (together with Mark Templeton, the “Executive Officers”)
10.21*	Form of Amendment to Change in Control Agreements by and between the Company and each of David J. Henshall, David R. Freidman, Brett M. Caine and Alvaro J. Monserrat (incorporated herein by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2011)
10.22*	Form of Indemnification Agreement by and between the Company and each of its Directors and Executive Officers (incorporated herein by reference to Exhibit 10.4 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2011)
10.23*	Form of Change in Control Agreement by and between the Company and each of Catherine Courage, Steve Daheb, Sudhakar Ramakrishna and Christopher Hylen (incorporated by reference herein to Exhibit 10.25 to the Company's Annual Report on Form 10-K for the year ended December 31, 2012)
21.1†	List of Subsidiaries
23.1†	Consent of Independent Registered Public Accounting Firm
24.1	Power of Attorney (included in signature page)
31.1†	Rule 13a-14(a) / 15d-14(a) Certifications
31.2†	Rule 13a-14(a) / 15d-14(a) Certifications
32.1††	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101†	XBRL (eXtensible Business Reporting Language). The following materials from Citrix Systems, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2013 formatted in XBRL: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income (iv) the Consolidated Statements of Equity, (v) the Consolidated Statements of Cash Flows and (vi) notes to consolidated financial statements.

*	Indicates a management contract or a compensatory plan, contract or arrangement.
†	Filed herewith.
††	Furnished herewith.

58

(b) Exhibits.

The Company hereby files as part of this Annual Report on Form 10-K for the year ended December 31, 2013, the exhibits listed in Item 15(a)(3) above. Exhibits which are incorporated herein by reference can be inspected and copied at the public reference facilities maintained by the Securities and Exchange Commission, 100 F Street, N.E., Washington, D.C., 20549 and at the Commission’s regional offices at 175 W. Jackson Boulevard, Suite 900, Chicago, IL 60604 and 3 World Financial Center, Suite 400, New York, NY 10281-1022.

(c) Financial Statement Schedule.

The Company hereby files as part of this Annual Report on Form 10-K for the year ended December 31, 2013 the consolidated financial statement schedule listed in Item 15(a)(2) above, which is attached hereto.

59

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in Fort Lauderdale, Florida on the 20^th day of February, 2014.

	CITRIX SYSTEMS, INC.
By:	/s/ MARK B. TEMPLETON
	Mark B. Templeton
	President and Chief Executive Officer

POWER OF ATTORNEY AND SIGNATURES

We, the undersigned officers and directors of Citrix Systems, Inc., hereby severally constitute and appoint Mark B. Templeton and David J. Henshall, and each of them singly, our true and lawful attorneys, with full power to them and each of them singly, to sign for us in our names in the capacities indicated below, all amendments to this report, and generally to do all things in our names and on our behalf in such capacities to enable Citrix Systems, Inc. to comply with the provisions of the Securities Exchange Act of 1934, as amended, and all requirements of the Securities and Exchange Commission.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities indicated below on the 20^th day of February, 2014.

Signature	Title(s)
/S/    MARK B. TEMPLETON	President, Chief Executive Officer and Director (Principal Executive Officer)
Mark B. Templeton
/S/    DAVID J. HENSHALL	Executive Vice President, Chief Operating Officer and Chief Financial Officer (Principal Financial and Accounting Officer)
David J. Henshall
/S/    THOMAS F. BOGAN	Chairman of the Board of Directors
Thomas F. Bogan
/S/    NANCI CALDWELL	Director
Nanci Caldwell
/S/    ROBERT D. DALEO	Director
Robert D. Daleo
/S/     MURRAY J. DEMO	Director
Murray J. Demo
/S/    STEPHEN M. DOW	Director
Stephen M. Dow
/S/    ASIFF S. HIRJI	Director
Asiff S. Hirji
/S/    GARY E. MORIN	Director
Gary E. Morin
/S/    GODFREY R. SULLIVAN	Director
Godfrey R. Sullivan

60

CITRIX SYSTEMS, INC.

List of Financial Statements and Financial Statement Schedule

The following consolidated financial statements of Citrix Systems, Inc. are included in Item 8:

	Report of Independent Registered Public Accounting Firm	F- 2
	Consolidated Balance Sheets — December 31, 2013 and 2012	F- 3
	Consolidated Statements of Income — Years ended December 31, 2013, 2012 and 2011	F- 4
	Consolidated Statements of Comprehensive Income — Years ended December 31, 2013, 2012 and 2011	F- 5
	Consolidated Statements of Equity — Years ended December 31, 2013, 2012 and 2011	F- 6
	Consolidated Statements of Cash Flows — Years ended December 31, 2013, 2012 and 2011	F- 7
	Notes to Consolidated Financial Statements	F- 8
The following consolidated financial statement schedule of Citrix Systems, Inc. is included in Item 15(a):
	Schedule II Valuation and Qualifying Accounts

All other schedules for which provision is made in the applicable accounting regulation of the Securities and Exchange Commission are not required under the related instructions or are inapplicable and therefore have been omitted.

F- 1

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of Citrix Systems, Inc.

We have audited the accompanying consolidated balance sheets of Citrix Systems, Inc. as of December 31, 2013 and 2012, and the related consolidated statements of income, comprehensive income, equity, and cash flows for each of the three years in the period ended December 31, 2013. Our audits also included the financial statement schedule listed in the Index at Item 15(a). These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Citrix Systems, Inc. at December 31, 2013 and 2012, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2013, in conformity with U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects the information set forth therein

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Citrix Systems Inc.'s internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) and our report dated February 20, 2014 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Certified Public Accountants

Boca Raton, Florida

February 20, 2014

F- 2

CITRIX SYSTEMS, INC.

CONSOLIDATED BALANCE SHEETS

	December 31, 2013			December 31, 2012
	(In thousands, except par value)
Assets
Current assets:
Cash and cash equivalents	$	280,740		$	643,609
Short-term investments, available-for-sale	453,976			285,022
Accounts receivable, net of allowances of $5,354 and $6,448 at December 31, 2013 and 2012, respectively	654,821			630,956
Inventories, net	14,107			10,723
Prepaid expenses and other current assets	110,981			106,579
Current portion of deferred tax assets, net	48,470			36,846
Total current assets	1,563,095			1,713,735
Long-term investments, available-for-sale	855,700			595,313
Property and equipment, net	338,996			303,294
Goodwill	1,768,949			1,518,219
Other intangible assets, net	509,595			556,205
Long-term portion of deferred tax assets, net	115,418			43,097
Other assets	60,496			66,539
Total assets	$	5,212,249		$	4,796,402
Liabilities and Stockholders' Equity
Current liabilities:
Accounts payable	$	78,452		$	71,116
Accrued expenses and other current liabilities	257,606			257,135
Income taxes payable	29,322			49,346
Current portion of deferred revenues	1,098,681			965,276
Total current liabilities	1,464,061			1,342,873
Long-term portion of deferred revenues	313,059			232,719
Other liabilities	115,322			99,033
Commitments and contingencies
Stockholders' equity:
Preferred stock at $.01 par value: 5,000 shares authorized, none issued and outstanding	—			—
Common stock at $.001 par value: 1,000,000 shares authorized; 291,078 and 287,123 shares issued and outstanding at December 31, 2013 and 2012, respectively	291			287
Additional paid-in capital	3,974,297			3,691,111
Retained earnings	2,903,541			2,564,018
Accumulated other comprehensive income (loss)	4,951			(7,705		)
	6,883,080			6,247,711
Less - common stock in treasury, at cost (107,789 and 100,781 shares at December 31, 2013 and 2012, respectively)	(3,563,273		)	(3,125,934		)
Total stockholders' equity	3,319,807			3,121,777
Total liabilities and stockholders' equity	$	5,212,249		$	4,796,402

See accompanying notes.

F- 3

CITRIX SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF INCOME

	Year Ended December 31,
	2013			2012		2011
	(In thousands, except per share information)
Revenues:
Product and licenses	$	891,630		$	830,645	$	744,513
Software as a service	582,872			511,323		430,213
License updates and maintenance	1,305,053			1,125,094		940,181
Professional services	138,879			119,061		91,485
Total net revenues	2,918,434			2,586,123		2,206,392
Cost of net revenues:
Cost of product and license revenues	114,932			96,962		74,393
Cost of services and maintenance revenues	289,990			227,150		164,465
Amortization of product related intangible assets	97,873			80,025		54,741
Total cost of net revenues	502,795			404,137		293,599
Gross margin	2,415,639			2,181,986		1,912,793
Operating expenses:
Research and development	516,338			450,571		380,674
Sales, marketing and services	1,216,680			1,060,829		885,066
General and administrative	260,236			245,259		213,673
Amortization of other intangible assets	41,668			34,549		16,390
Restructuring	—			—		24
Total operating expenses	2,034,922			1,791,208		1,495,827
Income from operations	380,717			390,778		416,966
Interest income	8,194			10,152		13,819
Other (expense) income, net	(1,021		)	9,299		(288		)
Income before income taxes	387,890			410,229		430,497
Income taxes	48,367			57,682		74,867
Consolidated net income	339,523			352,547		355,630
Less: Net loss attributable to non-controlling interest	—			—		692
Net income attributable to Citrix Systems, Inc.	$	339,523		$	352,547	$	356,322
Net income per share attributable to Citrix Systems, Inc. stockholders:
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	$	1.82		$	1.89	$	1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	$	1.80		$	1.86	$	1.87
Weighted average shares outstanding:
Basic	186,672			186,722		187,315
Diluted	188,245			189,129		190,641

See accompanying notes.

F- 4

CITRIX SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Year Ended December 31,
	2013			2012			2011
	(In thousands)
Consolidated net income	$	339,523		$	352,547		$	355,630
Other comprehensive income (loss):
Change in foreign currency translation adjustment	8,482			2,457			(4,595		)
Available for sale securities:
Change in net unrealized gains	(985		)	3,603			293
Less: reclassification adjustment for net (gains) losses included in net income	(203		)	(3,443		)	1,343
Net change (net of tax effect)	(1,188		)	160			1,636
Gain (loss) on pension liability	2,500			(3,925		)	634
Cash flow hedges:
Change in unrealized gains	(67		)	(653		)	(2,784		)
Less: reclassification adjustment for net losses (gains) included in net income	2,929			5,817			(8,475		)
Net change (net of tax effect)	2,862			5,164			(11,259		)
Other comprehensive income (loss)	12,656			3,856			(13,584		)
Comprehensive income	352,179			356,403			342,046
Less: Comprehensive income attributable to non-controlling interest	—			—			(692		)
Comprehensive income attributable to Citrix Systems, Inc.	$	352,179		$	356,403		$	341,354

See accompanying notes.

F- 5

CITRIX SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF EQUITY

(In thousands)

	Common Stock			Additional Paid In Capital			Retained Earnings		Accumulated Other Comprehensive Income (loss)			Common Stock in Treasury					Non-Controlling Interest			Total Equity
	Shares	Amount										Shares		Amount
Balance at December 31, 2010	277,992	$	278	$	3,112,186		$	1,855,149	$	2,023		(90,502	)	$	(2,416,645	)	$	7,597		$	2,560,588
Shares issued under stock-based compensation plans	4,472	4		125,602			—		—			—		—			—			125,606
Stock-based compensation expense	—	—		89,422			—		—			—		—			—			89,422
Common stock issued under employee stock purchase plan	310	1		21,098			—		—			—		—			—			21,099
Tax benefit from employer stock plans	—	—		50,003			—		—			—		—			—			50,003
Stock repurchases, net	—	—		—			—		—			(6,276	)	(424,849		)	—			(424,849		)
Restricted shares turned in for tax withholding	—	—		—			—		—			(182	)	(13,262		)	—			(13,262		)
Purchase of non-controlling interest	—	—		(13,258		)	—		—			—		—			(6,905		)	(20,163		)
Other comprehensive loss, net of tax	—	—		—			—		(13,584		)	—		—			—			(13,584		)
Net income	—	—		—			356,322		—			—		—			(692		)	355,630
Balance at December 31, 2011	282,774	283		3,385,053			2,211,471		(11,561		)	(96,960	)	(2,854,756		)	—			2,730,490
Shares issued under stock-based compensation plans	3,983	3		108,402			—		—			—		—			—			108,405
Stock-based compensation expense	—	—		145,967			—		—			—		—			—			145,967
Common stock issued under employee stock purchase plan	366	1		24,888			—		—			—		—			—			24,889
Tax benefit from employer stock plans	—	—		24,839			—		—			—		—			—			24,839
Stock repurchases, net	—	—		—			—		—			(3,551	)	(251,008		)	—			(251,008		)
Restricted shares turned in for tax withholding	—	—		—			—		—			(270	)	(20,170		)	—			(20,170		)
Other	—	—		1,962			—		—			—		—			—			1,962
Other comprehensive income, net of tax	—	—		—			—		3,856			—		—			—			3,856
Net income	—	—		—			352,547		—			—		—			—			352,547
Balance at December 31, 2012	287,123	287		3,691,111			2,564,018		(7,705		)	(100,781	)	(3,125,934		)	—			3,121,777
Shares issued under stock-based compensation plans	3,545	3		73,652			—		—			—		—			—			73,655
Stock-based compensation expense	—	—		179,098			—		—			—		—			—			179,098
Common stock issued under employee stock purchase plan	410	1		30,144			—		—			—		—			—			30,145
Tax deficiency from employer stock plans, net	—	—		(620		)	—		—			—		—			—			(620		)
Stock repurchases, net	—	—		—			—		—			(6,564	)	(406,326		)	—			(406,326		)
Restricted shares turned in for tax withholding	—	—		—			—		—			(444	)	(31,013		)	—			(31,013		)
Other	—	—		912			—		—			—		—			—			912
Other comprehensive income, net of tax	—	—		—			—		12,656			—		—			—			12,656
Net income	—	—		—			339,523		—			—		—			—			339,523
Balance at December 31, 2013	291,078	$	291	$	3,974,297		$	2,903,541	$	4,951		(107,789	)	$	(3,563,273	)	$	—		$	3,319,807

See accompanying notes.

F- 6

CITRIX SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Year Ended December 31,
	2013			2012			2011
	(In thousands)
Operating Activities
Net income	$	339,523		$	352,547		$	355,630
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	139,541			114,574			71,131
Depreciation and amortization of property and equipment	127,959			100,299			88,124
Stock-based compensation expense	183,941			149,940			92,909
(Gain) loss on investments	(2,441		)	(14,477		)	1,343
Provision for doubtful accounts	1,046			1,784			266
Provision for product returns	4,473			10,743			5,541
Provision for inventory reserves	1,905			1,022			1,570
Deferred income tax benefit	(51,848		)	(70,791		)	(16,229		)
Tax effect of stock-based compensation	8,129			24,839			50,003
Excess tax benefit from stock-based compensation, net	(12,552		)	(35,374		)	(51,659		)
Effects of exchange rate changes on monetary assets and liabilities denominated in foreign currencies	5,888			1,706			1,895
Other non-cash items	434			1,178			4,733
Total adjustments to reconcile net income to net cash provided by operating activities	406,475			285,443			249,627
Changes in operating assets and liabilities, net of the effects of acquisitions:
Accounts receivable	(22,951		)	(107,628		)	(95,481		)
Inventories	(5,591		)	(2,024		)	(3,097		)
Prepaid expenses and other current assets	(862		)	(9,195		)	1,407
Other assets	5,076			(1,497		)	(562		)
Income taxes, net	(35,316		)	(4,408		)	25,180
Accounts payable	3,092			(426		)	(11,758		)
Accrued expenses and other current liabilities	22,515			45,135			(20,996		)
Deferred revenues	201,455			216,798			168,994
Other liabilities	14,927			43,782			10,178
Total changes in operating assets and liabilities, net of the effects of acquisitions	182,345			180,537			73,865
Net cash provided by operating activities	928,343			818,527			679,122
Investing Activities
Purchases of available-for-sale investments	(1,703,976		)	(1,435,367		)	(1,360,677		)
Proceeds from sales of available-for-sale investments	766,192			1,256,295			856,182
Proceeds from maturities of available-for-sale investments	504,314			437,991			652,939
Proceeds from the sales of cost method investments	12,067			24,252			—
Purchases of property and equipment	(162,889		)	(122,958		)	(111,932		)
Purchases of cost method investments	(6,824		)	(6,622		)	(16,879		)
Cash paid for acquisitions, net of cash acquired	(334,881		)	(487,221		)	(455,377		)
Cash paid for licensing agreements and product related intangible assets	(12,153		)	(27,760		)	(15,437		)
Other	—			3,450			—
Net cash used in investing activities	(938,150		)	(357,940		)	(451,181		)
Financing Activities
Proceeds from issuance of common stock under stock-based compensation plans	73,655			108,406			125,606
Repayment of acquired debt	(2,061		)	(24,346		)	(11,561		)
Excess tax benefit from stock-based compensation	12,552			35,374			51,659
Purchase of non-controlling interest	—			—			(17,207		)
Stock repurchases, net	(406,326		)	(251,008		)	(424,849		)
Cash paid for tax withholding on vested stock awards	(31,013		)	(20,170		)	(13,262		)
Other	912			1,962			(3,000		)
Net cash used in financing activities	(352,281		)	(149,782		)	(292,614		)
Effect of exchange rate changes on cash and cash equivalents	(781		)	(492		)	1,807
Change in cash and cash equivalents	(362,869		)	310,313			(62,866		)
Cash and cash equivalents at beginning of period	643,609			333,296			396,162
Cash and cash equivalents at end of period	$	280,740		$	643,609		$	333,296
Supplemental Cash Flow Information
Cash paid for income taxes	$	92,672		$	32,355		$	12,195
Cash paid for interest	$	127		$	305		$	139

See accompanying notes.

F- 7

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. ORGANIZATION

Citrix Systems, Inc. ("Citrix" or the "Company"), is a Delaware corporation founded on April 17, 1989. Citrix is a leader in virtualization, networking and cloud infrastructure to enable new ways for people to work better. Citrix solutions help IT and service providers to build, manage and secure virtual and mobile workspaces that seamlessly deliver apps, desktops, data and services to virtually anyone, on any device, over any network or cloud.

Citrix markets and licenses its products directly to customers, over the Web, and through systems integrators ("SIs"), in addition to indirectly through value-added resellers ("VARs"), value-added distributors ("VADs"), original equipment manufacturers ("OEMs"), and service providers.

The Company’s revenues are derived from its Enterprise and Service Provider products, which primarily include its Mobile and Desktop products, Networking and Cloud products and related license updates and maintenance and professional services and from its Software as a Service ("SaaS") products, which primarily include Collaboration and Data Sharing, Remote Access and Remote IT Support products. Enterprise and Service Provider (formerly Infrastructure division) and SaaS constitute the Company's two reportable segments. See Note 11 for more information on the Company's segments.

2. SIGNIFICANT ACCOUNTING POLICIES

Consolidation Policy

The consolidated financial statements of the Company include the accounts of its wholly-owned subsidiaries in the Americas, Europe, the Middle East and Africa (“EMEA”), Asia-Pacific and the SaaS division. All significant transactions and balances between the Company and its subsidiaries have been eliminated in consolidation.

Cash and Cash Equivalents

Cash and cash equivalents at December 31, 2013 and 2012 include marketable securities, which are primarily money market funds, commercial paper, agency, and government securities, municipal securities and corporate securities with initial or remaining contractual maturities when purchased of three months or less.

Investments

Short-term and long-term investments at December 31, 2013 and 2012 primarily consist of agency securities, corporate securities, municipal securities and government securities. Investments classified as available-for-sale are stated at fair value with unrealized gains and losses, net of taxes, reported in Accumulated other comprehensive income (loss). The Company classifies its available-for-sale investments as current and non-current based on their actual remaining time to maturity. The Company does not recognize changes in the fair value of its available-for-sale investments in income unless a decline in value is considered other-than-temporary in accordance with the authoritative guidance.

The Company’s investment policy is designed to limit exposure to any one issuer depending on credit quality. The Company uses information provided by third parties to adjust the carrying value of certain of its investments to fair value at the end of each period. Fair values are based on a variety of inputs and may include interest rates, known historical trades, yield curve information, benchmark data, prepayment speeds, credit quality and broker/dealer quotes.

Accounts Receivable

The Company’s accounts receivable are attributable primarily to VARs, VADs and end customers. Collateral is generally not required. The Company also maintains allowances for doubtful accounts for estimated losses resulting from the inability of the Company’s customers to make payments. The Company periodically reviews these estimated allowances, including by conducting an analysis of the customer's payment history and creditworthiness, the age of the trade receivable balances and current economic conditions that may affect a customer’s ability to make payments. Based on this review, the Company specifically reserves for those accounts deemed uncollectible. When receivables are determined to be uncollectible, principal amounts of such receivables outstanding are deducted from the allowance. The allowance for doubtful accounts was $3.3 million and $3.8 million as of December 31, 2013 and 2012, respectively. If the financial condition of a significant distributor or customer were to deteriorate, the Company’s operating results could be adversely affected. One distributor, Ingram Micro, accounted for 10% and 11% of gross accounts receivable at December 31, 2013 and 2012, respectively.

Inventory

Inventories are stated at the lower of cost or market on a standard cost basis, which approximates actual cost. The Company’s inventories primarily consist of finished goods as of December 31, 2013 and 2012.

F- 8

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which is generally three years for computer equipment and software, the lesser of the lease term or ten years for leasehold improvements, which is the estimated useful life, seven years for office equipment and furniture and the Company’s enterprise resource planning system and 40 years for buildings.

During 2013 and 2012, the Company retired $10.3 million and $5.3 million, respectively, in property and equipment that were no longer in use. At the time of retirement, the remaining net book value of these assets was not material and no material asset retirement obligations were associated with them.

Property and equipment consist of the following:

	December 31,
	2013			2012
	(In thousands)
Buildings	$	85,092		$	76,202
Computer equipment	204,110			178,948
Software	316,902			259,225
Equipment and furniture	105,145			86,362
Leasehold improvements	168,990			149,731
	880,239			750,468
Less accumulated depreciation and amortization	(597,268		)	(479,460		)
Assets under construction	28,438			15,517
Land	27,587			16,769
Total	$	338,996		$	303,294

Long-Lived Assets

The Company reviews for impairment of long-lived assets and certain identifiable intangible assets to be held and used whenever events or changes in circumstances indicate that the carrying amount of such assets may not be fully recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Measurement of an impairment loss is based on the fair value of the asset compared to its carrying value. Long-lived assets and certain identifiable intangible assets to be disposed of are reported at the lower of carrying amount or fair value less costs to sell.

For the year ended December 31, 2012, the Company decided to contribute its CloudStack tradename acquired in conjunction with its acquisition of Cloud.com to the Apache Software Foundation. As a result, the carrying value of the CloudStack tradename was written down to zero, resulting in a $5.2 million impairment, which was recorded in Amortization of other intangible assets in the accompanying consolidated statements of income. During 2013 and 2011, the Company did not recognize any impairment charges associated with its intangible assets.

Goodwill

The Company accounts for goodwill in accordance with the authoritative guidance, which requires that goodwill and certain intangible assets are not amortized, but are subject to an annual impairment test. There was no impairment of goodwill or indefinite lived intangible assets as a result of the annual impairment tests analyses completed during the fourth quarters of 2013 and 2012, respectively. The authoritative guidance provides entities with an option to perform a qualitative assessment to determine whether further quantitative impairment testing is necessary. The Company performed the qualitative assessment when it performed its goodwill impairment test in the fourth quarter of 2013. As a result of the qualitative analysis, no further quantitative impairment test was deemed necessary. See Note 3 for acquisitions and Note 11 for segment information.

F- 9

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table presents the change in goodwill allocated to the Company’s reportable segments during 2013 and 2012 (in thousands):

	Balance at January 1, 2013		Additions			Other				Balance at December 31, 2013		Balance at January 1, 2012		Additions			Other				Balance at December 31, 2012
Enterprise and Service Provider division	$	1,158,580	$	248,800		$	(5,224	)	(2)	$	1,402,156	$	956,504	$	257,379		$	(55,303	)	(4)	$	1,158,580
SaaS division	359,639		2,668			4,486			(3)	366,793		282,616		26,481			50,542			(4)	359,639
Consolidated	$	1,518,219	$	251,468	(1)	$	(738	)		$	1,768,949	$	1,239,120	$	283,860	(1)	$	(4,761	)		$	1,518,219

⁽¹⁾  Amount primarily relates to acquisitions. See Note 3 for more information regarding the Company’s acquisitions.

⁽²⁾  Amount primarily relates to adjustments to the preliminary purchase price allocation for certain 2012 Acquisitions.

⁽³⁾  Amount primarily relates to foreign currency translation.

⁽⁴⁾  Amount primarily relates to reclassification of goodwill between segments. In the first quarter of 2012, the Company transferred the business acquired in its acquisition of Novell Labs, Inc. (d/b/a "ShareFile") from its Enterprise and Service Provider division to its SaaS division. Also included in the SaaS division is foreign currency translation.

Intangible Assets

The Company has intangible assets which were primarily acquired in conjunction with business combinations and technology purchases. Intangible assets with finite lives are recorded at cost, less accumulated amortization. Amortization is recognized on a straight-line basis over the estimated useful lives of the respective assets, generally three to seven years, except for patents, which are amortized over the lesser of their remaining life or ten years. In accordance with the authoritative guidance, the Company records acquired product related intangible assets at net realizable value and reviews this technology for impairment on a periodic basis by comparing the estimated net realizable value to the unamortized cost of the technology. In-process R&D is initially capitalized at fair value as an intangible asset with an indefinite life and assessed for impairment thereafter. When in-process R&D projects are completed, the corresponding amount is reclassified as an amortizable purchased intangible asset and is amortized over the asset's estimated useful life.

Intangible assets consist of the following (in thousands):

	December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	677,509	$	428,418	5.60
Other	482,918		222,414		7.52
Total	$	1,160,427	$	650,832	6.38

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	620,032	$	339,608	5.60
Other	446,601		170,820		7.28
Total	$	1,066,633	$	510,428	6.29

Other intangible assets consist primarily of customer relationships, trade names, covenants not to compete and patents. Amortization of product related intangible assets includes amortization of product related technologies and patents and is reported as a Cost of net revenues in the accompanying consolidated statements of income. Amortization of other intangible assets includes amortization of customer relationships, trade names and covenants not to compete and is reported as an Operating expense in the accompanying consolidated statements of income. The Company monitors its intangible assets for indicators of impairment. If the Company determines an impairment has occurred, it will write-down the intangible asset to its fair value. There were no impairments for the year ended December 31, 2013. For the year ended December 31, 2012, Amortization of other intangible assets includes a $5.2 million impairment related to the Company's decision to contribute its CloudStack tradename acquired in conjunction with its acquisition of Cloud.com to the Apache Software Foundation. As a

F- 10

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

result, the carrying value of the CloudStack tradename was written down to zero. See Note 3 for more information regarding the Company's acquisitions.

Estimated future annual amortization expense is as follows (in thousands):

Year ending December 31,
2014	$	132,956
2015	111,016
2016	88,749
2017	61,057
2018	47,618

Software Development Costs

The authoritative guidance requires certain internal software development costs related to software to be sold to be capitalized upon the establishment of technological feasibility. The Company's software development costs incurred subsequent to achieving technological feasibility have not been significant and substantially all software development costs have been expensed as incurred.

Internal Use Software

In accordance with the authoritative guidance, the Company capitalizes external direct costs of materials and services and internal costs such as payroll and benefits of those employees directly associated with the development of new functionality in internal use software and software developed related to its software as a service (“SaaS”) offerings. The amount of costs capitalized in 2013 and 2012 relating to internal use software was $62.7 million and $51.5 million, respectively. These costs are being amortized over the estimated useful life of the software, which is generally three to seven years, and are included in property and equipment in the accompanying consolidated balance sheets. The total amounts charged to expense relating to internal use software was approximately $58.6 million, $44.5 million and $37.2 million, during the years ended December 31, 2013, 2012 and 2011, respectively.

Revenue Recognition

Net revenues include the following categories: Product and licenses, Software as a service, License updates and maintenance and Professional services. Product and licenses revenues primarily represent fees related to the licensing of the Company’s software and hardware appliance products. These revenues are reflected net of sales allowances, cooperative advertising agreements, partner incentive programs and provisions for returns. Shipping charges billed to customers are included in Product and license revenue and the related shipping costs are included in Cost of product and license revenue. SaaS revenues consist primarily of fees related to online service agreements, which are recognized ratably over the contract term, which is typically 12 months. In addition, SaaS revenues may also include set-up fees, which are recognized ratably over the contract term or the expected customer life, whichever is longer. License updates and maintenance revenues consist of fees related to the Subscription Advantage program and maintenance fees, which include technical support and hardware and software maintenance. The Company licenses many of its virtualization products bundled with a one-year contract for its Subscription Advantage program. Subscription Advantage is a renewable program that provides subscribers with immediate access to software upgrades, enhancements and maintenance releases when and if they become available during the term of the contract. Subscription Advantage and maintenance fees are recognized ratably over the term of the contract, which is typically 12 to 24 months. The Company capitalizes certain third-party commissions related to Subscription Advantage renewals. The capitalized commissions are amortized to Sales, marketing and services expense at the time the related deferred revenue is recognized as revenue. Hardware and software maintenance and support contracts are typically sold separately. Hardware maintenance includes technical support, the latest software upgrades and replacement of malfunctioning appliances. Dedicated account management is available as an add-on to the program for a higher level of service. Software maintenance includes unlimited support with product version upgrades. Professional services revenues are comprised of fees from consulting services related to the implementation of the Company’s products and fees from product training and certification, which are recognized as the services are provided.

The Company recognizes revenue when it is earned and when all of the following criteria are met: persuasive evidence of the arrangement exists; delivery has occurred or the service has been provided and the Company has no remaining obligations; the fee is fixed or determinable; and collectability is probable. The Company defines these four criteria as follows:

• Persuasive evidence of the arrangement exists. The Company primarily sells its software products via electronic licenses and typically requires a purchase order from the distributor, reseller or end-user (depending on the

F- 11

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

arrangement) who have previously negotiated a master distribution or resale agreement and an executed product license agreement from the end-user. For appliance sales, it is the Company’s customary practice to require a purchase order from distributors and resellers who have previously negotiated a master packaged product distribution or resale agreement. The Company typically recognizes revenue upon shipment for its appliance sales. For maintenance, technical support, product training and consulting services, the Company requires a purchase order and an executed agreement. For SaaS, the Company generally requires the customer or the reseller to electronically accept the terms of an online services agreement or execute a contract.

• Delivery has occurred and the Company has no remaining obligations. The Company considers delivery of licenses under electronic licensing agreements to have occurred when the related products are shipped and the end-user has been electronically provided the software activation keys that allow the end-user to take immediate possession of the product. For hardware appliance sales, the Company’s standard delivery method is free-on-board shipping point. Consequently, it considers delivery of appliances to have occurred when they are shipped pursuant to an agreement and purchase order. For SaaS, delivery occurs upon providing the users with their login id and password. For product training and consulting services, the Company fulfills its obligation when the services are performed. For license updates and maintenance, the Company assumes that its obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 to 24 months. For SaaS, the Company assumes that its obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 months.

• The fee is fixed or determinable. In the normal course of business, the Company does not provide customers the right to a refund of any portion of their license fees or extended payment terms. The fees are considered fixed or determinable upon establishment of an arrangement that contains the final terms of the sale including description, quantity and price of each product or service purchased. For SaaS, the fee is considered fixed or determinable if it is not subject to refund or adjustment.

• Collectability is probable. The Company determines collectability on a customer-by-customer basis and generally does not require collateral. The Company typically sells product licenses and license updates to distributors or resellers for whom there are histories of successful collection. New customers are typically subject to a credit review process that evaluates their financial position and ultimately their ability to pay. Customers are also subject to an ongoing credit review process. If the Company determines from the outset of an arrangement that collectability is not probable, revenue recognition is deferred until customer payment is received and the other parameters of revenue recognition described above have been achieved. Management’s judgment is required in assessing the probability of collection, which is generally based on an evaluation of customer specific information, historical experience and economic market conditions.

The majority of the Company’s product and license revenue consists of revenue from the sale of stand-alone software products. Stand-alone software sales generally include a perpetual license to the Company’s software and is subject to the industry specific software revenue recognition guidance. In accordance with this guidance, the Company allocates revenue to license updates related to its stand-alone software and any other undelivered elements of the arrangement based on vendor specific objective evidence (“VSOE”) of fair value of each element and such amounts are deferred until the applicable delivery criteria and other revenue recognition criteria described above have been met. The balance of the revenues, net of any discounts inherent in the arrangement, is recognized at the outset of the arrangement using the residual method as the product licenses are delivered. If management cannot objectively determine the fair value of each undelivered element based on VSOE of fair value, revenue recognition is deferred until all elements are delivered, all services have been performed, or until fair value can be objectively determined.

For hardware appliance and software transactions, the arrangement consideration is allocated to stand-alone software deliverables as a group and the non-software deliverables based on the relative selling prices using the selling price hierarchy in the revenue recognition guidance. The selling price hierarchy for a deliverable is based on its VSOE if available, third-party evidence of selling price ("TPE") if VSOE is not available, or estimated selling price ("ESP") if neither VSOE nor TPE is available. The Company then recognizes revenue on each deliverable in accordance with its policies for product and service revenue recognition. VSOE of selling price is based on the price charged when the element is sold separately. In determining VSOE, the Company requires that a substantial majority of the selling prices fall within a reasonable range based on historical discounting trends for specific products and services. TPE of selling price is established by evaluating competitor products or services in stand-alone sales to similarly situated customers. However, as the Company’s products contain a significant element of proprietary technology and its solutions offer substantially different features and functionality, the comparable pricing of products with similar functionality typically cannot be obtained. Additionally, as the Company is unable to reliably determine what competitors products’ selling prices are on a stand-alone basis, the Company is not typically able to determine TPE. The

F- 12

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

estimate of selling price is established considering multiple factors including, but not limited to, pricing practices in different geographies and through different sales channels and competitor pricing strategies.

For the Company’s non-software transactions, it allocates the arrangement consideration based on the relative selling price of the deliverables. For the Company’s hardware appliances, it uses ESP as its selling price. For the Company’s support and services, it generally uses VSOE as its selling price. When the Company is unable to establish selling price using VSOE for its support and services, the Company uses ESP in its allocation of arrangement consideration.

The Company’s SaaS products are considered service arrangements per the authoritative guidance; accordingly, the Company follows the provisions of Securities and Exchange Commission Staff Accounting Bulletin (“SAB”) No. 104, Revenue Recognition, when accounting for these service arrangements. Generally, the Company’s SaaS products are sold separately and not bundled with the Enterprise and Service Provider division’s products and services.

In the normal course of business, the Company is not obligated to accept product returns from its distributors under any conditions, unless the product item is defective in manufacture. The Company establishes provisions for estimated returns, as well as other sales allowances, concurrently with the recognition of revenue. The provisions are established based upon consideration of a variety of factors, including, among other things, recent and historical return rates for both specific products and distributors and the impact of any new product releases and projected economic conditions. Product returns are provided for in the consolidated financial statements and have historically been within management’s expectations. Allowances for estimated product returns amounted to approximately $2.1 million and $2.6 million at December 31, 2013 and December 31, 2012, respectively. The Company also records estimated reductions to revenue for customer programs and incentive offerings including volume-based incentives. The Company could take actions to increase its customer incentive offerings, which could result in an incremental reduction to revenue at the time the incentive is offered.

Product Concentration

The Company derives a substantial portion of its revenues from its Mobile and Desktop products, which include its XenDesktop and XenApp products and related services, and anticipates that these products and future derivative products and product lines based upon this technology will continue to constitute a majority of its revenue. The Company could experience declines in demand for its Mobile and Desktop products and other products, whether as a result of general economic conditions, the delay or reduction in technology purchases, new competitive product releases, price competition, lack of success of its strategic partners, technological change or other factors.

Cost of Net Revenues

Cost of product and license revenues consists primarily of hardware, product media and duplication, manuals, packaging materials, shipping expense, server capacity costs. In addition, the Company is a party to licensing agreements with various entities, which give the Company the right to use certain software code in its products or in the development of future products in exchange for the payment of fixed fees or amounts based upon the sales of the related product. The licensing agreements generally have terms ranging from one to five years, and generally include renewal options. However, some agreements are perpetual unless expressly terminated. Royalties and other costs related to these agreements are included in cost of net revenues. Cost of services and maintenance revenue consists primarily of compensation and other personnel-related costs of providing technical support and consulting, as well as the Company’s SaaS. Also included in cost of net revenues is amortization of product related intangible assets which includes acquired core and product technology and associated patents.

Foreign Currency

The functional currency for all of the Company’s wholly-owned foreign subsidiaries in its Enterprise and Service Provider division is the U.S. dollar. Monetary assets and liabilities of such subsidiaries are remeasured into U.S. dollars at exchange rates in effect at the balance sheet date, and revenues and expenses are remeasured at average rates prevailing during the year. The functional currency of the Company’s wholly-owned foreign subsidiaries of its SaaS division is the currency of the country in which each subsidiary is located. The Company translates assets and liabilities of these foreign subsidiaries at exchange rates in effect at the balance sheet date. The Company includes accumulated net translation adjustments in equity as a component of Accumulated other comprehensive income (loss). Foreign currency transaction gains and losses are the result of exchange rate changes on transactions denominated in currencies other than the functional currency, including U.S. dollars. The remeasurement of those foreign currency transactions is included in determining net income or loss for the period of exchange. Remeasurement and foreign currency transaction (losses) gains of approximately $(4.9) million, $(3.3) million and $4.7 million for the years ended December 31, 2013, 2012, and 2011, respectively, are included in Other (expense) income, net, in the accompanying consolidated statements of income.

F- 13

Derivatives and Hedging Activities

In accordance with the authoritative guidance, the Company records derivatives at fair value as either assets or liabilities on the balance sheet. For derivatives that are designated as and qualify as effective cash flow hedges, the portion of gain or loss on the derivative instrument effective at offsetting changes in the hedged item is reported as a component of Accumulated other comprehensive income (loss) and reclassified into earnings as operating expense, net, when the hedged transaction affects earnings. Derivatives not designated as hedging instruments are adjusted to fair value through earnings as Other (expense) income, net, in the period during which changes in fair value occur. The application of the authoritative guidance could impact the volatility of earnings.

The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk-management objective and strategy for undertaking various hedge transactions. This process includes attributing all derivatives that are designated as cash flow hedges to floating rate assets or liabilities or forecasted transactions. The Company also formally assesses, both at the inception of the hedge and on an ongoing basis, whether each derivative is highly effective in offsetting changes in cash flows of the hedged item. Fluctuations in the value of the derivative instruments are generally offset by changes in the hedged item; however, if it is determined that a derivative is not highly effective as a hedge or if a derivative ceases to be a highly effective hedge, the Company will discontinue hedge accounting prospectively for the affected derivative.

The Company is exposed to risk of default by its hedging counterparties. Although this risk is concentrated among a limited number of counterparties, the Company’s foreign exchange hedging policy attempts to minimize this risk by placing limits on the amount of exposure that may exist with any single financial institution at a time.

Pension Liability

The Company provides retirement benefits to certain employees who are not U.S. based. Generally, benefits under these programs are based on an employee’s length of service and level of compensation. The majority of these programs are commonly referred to as termination indemnities, which provide retirement benefits in accordance with programs mandated by the governments of the countries in which such employees work.

The Company had accrued $9.2 million and $9.8 million for these pension liabilities at December 31, 2013 and 2012, respectively. Expenses for the programs for 2013, 2012 and 2011 amounted to $3.5 million, $1.5 million and $1.8 million, respectively.

Advertising Costs

The Company expenses advertising costs as incurred. The Company has advertising agreements with, and purchases advertising from, online media providers to advertise its SaaS. The Company also has cooperative advertising agreements with certain distributors and resellers whereby the Company will reimburse distributors and resellers for qualified advertising of Company products. Reimbursement is made once the distributor, reseller or provider provides substantiation of qualified expenses. The Company estimates the impact of these expenses and recognizes them at the time of product sales as a reduction of net revenue in the accompanying consolidated statements of income. The total costs the Company recognized related to advertising were approximately $146.5 million, $137.5 million and $130.8 million, during the years ended December 31, 2013, 2012 and 2011, respectively.

Income Taxes

The Company and one or more of its subsidiaries is subject to United States federal income taxes, as well as income taxes of multiple state and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years prior to 2009.

In the ordinary course of global business, there are transactions for which the ultimate tax outcome is uncertain; thus, judgment is required in determining the worldwide provision for income taxes. The Company provides for income taxes on transactions based on its estimate of the probable liability. The Company adjusts its provision as appropriate for changes that impact its underlying judgments. Changes that impact provision estimates include such items as jurisdictional interpretations on tax filing positions based on the results of tax audits and general tax authority rulings. Due to the evolving nature of tax rules combined with the large number of jurisdictions in which the Company operates, estimates of its tax liability and the realizability of its deferred tax assets could change in the future, which may result in additional tax liabilities and adversely affect the Company’s results of operations, financial condition and cash flows.

The Company is required to estimate its income taxes in each of the jurisdictions in which it operates as part of the process of preparing its consolidated financial statements. The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that some portion or all of the

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

deferred tax assets will not be realized. The Company reviews deferred tax assets periodically for recoverability and makes estimates and judgments regarding the expected geographic sources of taxable income and gains from investments, as well as tax planning strategies in assessing the need for a valuation allowance.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Significant estimates made by management include the provision for doubtful accounts receivable, the provision to reduce obsolete or excess inventory to market, the provision for estimated returns, as well as sales allowances, the assumptions used in the valuation of stock-based awards, the assumptions used in the discounted cash flows to mark certain of its investments to market, the valuation of the Company’s goodwill, net realizable value of product related and other intangible assets, the provision for vacant facility costs, the provision for income taxes and the amortization and depreciation periods for intangible and long-lived assets. While the Company believes that such estimates are fair when considered in conjunction with the consolidated financial position and results of operations taken as a whole, the actual amounts of such items, when known, will vary from these estimates.

Accounting for Stock-Based Compensation Plans

The Company has various stock-based compensation plans for its employees and outside directors and accounts for stock-based compensation arrangements in accordance with the authoritative guidance, which requires the Company to measure and record compensation expense in its consolidated financial statements using a fair value method. See Note 7 for further information regarding the Company’s stock-based compensation plans.

Net Income Per Share Attributable to Citrix Systems, Inc. Stockholders

Net income per share attributable to Citrix Systems, Inc. stockholders - basic is calculated by dividing income available to stockholders by the weighted-average number of common shares outstanding during each period. Net income per share attributable to Citrix Systems, Inc. stockholders - diluted is computed using the weighted-average number of common and dilutive common share equivalents outstanding during the period. Dilutive common share equivalents consist of shares issuable upon the vesting or exercise of stock awards (calculated using the treasury stock method) during the period they were outstanding. Certain shares under the Company’s stock-based compensation programs were excluded from the computation of diluted earnings per share due to their anti-dilutive effect for the respective periods in which they were outstanding. The reconciliation of the numerator and denominator of the earnings per share calculation is presented in Note 13.

Reclassifications

Certain reclassifications of the prior years' amounts have been made to conform to the current year's presentation. In the Property and Equipment table above, the Company determined it was more practical to present Assets under construction on a separate line as opposed to including the amounts within each asset class. Therefore, the reclassifications only resulted in changes to the amounts between asset classes.

3. ACQUISITIONS

2013 Acquisitions

Zenprise

In January 2013, the Company acquired all of the issued and outstanding securities of Zenprise, Inc. ("Zenprise"), a

privately-held leader in mobile device management. Zenprise became part of the Company's Enterprise and Service Provider division, in which Citrix has integrated the Zenprise offering for mobile device management into its XenMobile Enterprise edition. The total consideration for this transaction was approximately $324.0 million, net of $2.9 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $0.6 million, of which the Company expensed approximately $0.1 million during the year ended December 31, 2013 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisition, the Company assumed certain stock options, which are exercisable for up to 285,817 shares of the Company's common stock, for which the vesting period reset fully upon the closing of the transaction.

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

2013 Other Acquisitions

During the third quarter of 2013, the Company acquired all of the issued and outstanding securities of a privately-held company. The total cash consideration for this transaction was approximately $5.3 million. The Company will pay contingent consideration of up to $3.0 million in cash upon the satisfaction of certain milestone achievements, as defined pursuant to the share purchase agreement. This business became part of the Company's SaaS division. Transaction costs associated with the acquisition were approximately $0.2 million, all of which the Company expensed during the year ended December 31, 2013, and are included in General and administrative expense in the accompanying consolidated statements of income.

During the fourth quarter of 2013, the Company acquired all of the issued and outstanding securities of a privately-held company. The total cash consideration for this transaction was approximately $5.5 million. This business became part of the Company's Enterprise and Service Provider division. Transaction costs associated with the acquisition were approximately $0.2 million,all of which the Company expensed during the year ended December 31, 2013, and are included in General and administrative expense in the accompanying consolidated statements of income.

The two acquisitions discussed in this section captioned 2013 Other Acquisitions will collectively be referred to herein as the "2013 Other Acquisitions".

Purchase Accounting for the Acquisitions in 2013

The purchase prices for the companies acquired during the year ended December 31, 2013, which include Zenprise and the 2013 Other Acquisitions (collectively, the "2013 Acquisitions"), were allocated to the acquired net tangible and intangible assets based on estimated fair values as of the date of the acquisition. The allocation of the total purchase prices are summarized below (in thousands):

	Zenprise				2013 Other Acquisitions
	Purchase Price Allocation			Asset Life	Purchase Price Allocation			Asset Life
Current assets	$	10,943			$	3,586
Other assets	668				—
Property and equipment	431			Various	—
Deferred tax assets, non-current	38,785				3,177
Intangible assets	69,200			1-7 years	11,300			5-6 years
Goodwill	247,273			Indefinite	4,195			Indefinite
Assets acquired	367,300				22,258
Current liabilities assumed	(8,475		)		(3,950		)
Deferred tax liabilities, current	—				(2,000		)
Long-term liabilities assumed	(3,107		)		(1,000		)
Deferred tax liabilities, non-current	(28,725		)		(1,699		)
Net assets acquired	$	326,993			$	13,609

Current assets acquired in connection with the 2013 Acquisitions consisted primarily of cash and accounts receivable. Current liabilities assumed in connection with the 2013 Acquisitions consisted primarily of current portion of deferred revenues, short-term payables, other accrued expenses and short-term debt, which was paid in full subsequent to the respective acquisition date. Long-term liabilities assumed in connection with the 2013 Acquisitions consisted of other long-term liabilities and long-term portion of deferred revenues.

The Company continues to evaluate certain income tax assets and liabilities related to the 2013 Other Acquisitions. Goodwill from the 2013 Acquisitions was assigned to the respective segments each businesses became part of. The goodwill related to the 2013 Acquisitions is not deductible for tax purposes. See Note 11 for segment information. The goodwill amounts are comprised primarily of expected synergies from combining operations and other intangible assets that do not qualify for separate recognition.

Revenues from the 2013 Acquisitions are included in the revenues of each business's respective segment. The Company has included the effect of the 2013 Acquisitions in its results of operations prospectively from the date of acquisition.

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Identifiable intangible assets acquired in connection with the 2013 Acquisitions (in thousands) and the weighted-average lives are as follows:

	Zenprise		Asset Life	2013 Other Acquisitions		Asset Life
Trade names	$	2,400	3.0 years	$	—
Non-compete agreements	700		1.0 year	—
Customer relationships	18,300		7.0 years	3,600		6.0 years
Core and product technologies	47,800		6.0 years	6,300		5.0 years
In-process R&D (1)	—			1,400		Indefinite
Total	$	69,200		$	11,300

(1) Capitalized acquired in-process R&D costs will remain capitalized until such time as the projects are complete, at which point they will be amortized, or they will be written off when it is probable the projects will not be completed.

The following unaudited pro-forma information combines the consolidated results of the operations of the Company and the 2013 Acquisitions as if the acquisitions had occurred at the beginning of fiscal year 2012 (in thousands, except per share data):

	Year Ended December 31,
	2013		2012
Revenues	$	2,921,604	$	2,596,227
Income from operations	376,936		333,077
Net income	336,250		314,300
Per share - basic	1.80		1.68
Per share - diluted	1.79		1.66

2012 Acquisitions

ByteMobile

In July 2012, the Company acquired all of the issued and outstanding securities of ByteMobile, Inc. (“ByteMobile”), a privately-held provider of data and video optimization solutions for mobile network operators. ByteMobile became part of the Company's Enterprise and Service Provider division and extends the Company's industry reach into the mobile and cloud markets. The total consideration for this transaction was approximately $399.5 million, net of $5.6 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $2.1 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. Revenues from the ByteMobile acquisition are included in the revenue of the Company's Enterprise and Service Provider division. The Company has included the effect of the ByteMobile acquisition in its results of operations prospectively from the date of acquisition.

Purchase Accounting for the ByteMobile acquisition

During the twelve months ended December 31, 2013, the Company made net adjustments to goodwill of approximately $3.3 million to the purchase price allocation associated with the ByteMobile acquisition. Goodwill from the ByteMobile acquisition was assigned to the Company's Enterprise and Service Provider division. The goodwill related to the ByteMobile acquisition is not deductible for tax purposes. See Note 2 for information on adjustments to goodwill and Note 11 for segment information. The goodwill amounts are comprised primarily of expected synergies from combining operations and other intangible assets that do not qualify for separate recognition.

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The purchase price for ByteMobile was allocated to the acquired net tangible and intangible assets based on its estimated fair value as of the date of the acquisition. The allocation of the total purchase price is summarized below (in thousands):

	ByteMobile
	Purchase Price Allocation			Asset Life
Current assets	$	57,796
Other assets	7,406
Property and equipment	2,484			Various
Deferred tax assets, non-current	44,934
Intangible assets	248,900			1-9 years
Goodwill	221,914			Indefinite
Assets acquired	583,434
Current liabilities assumed	(62,313		)
Long-term liabilities assumed	(4,083		)
Deferred tax liabilities, non-current	(111,904		)
Net assets acquired	$	405,134

Current assets acquired in connection with the ByteMobile acquisition consisted primarily of cash and accounts receivable. Current liabilities assumed in connection with the ByteMobile acquisition consisted primarily of current portion of deferred revenues, short-term payables, other accrued expenses and short-term debt which was paid in full subsequent to the acquisition date. Long-term liabilities assumed in connection with the ByteMobile acquisition consisted of other long-term liabilities, long-term portion of deferred revenues and long-term debt, which was paid in full subsequent to the acquisition date. Identifiable intangible assets acquired in connection with the ByteMobile acquisition included trade names of $6.0 million with a weighted-average asset life of 6.0 years, customer relationships of $141.5 million with a weighted-average life of 9.0 years, and core and product technologies of $101.4 million with a weighted-average life of 4.8 years.

Podio

In April 2012, the Company acquired all of the issued and outstanding securities of Podio ApS (“Podio”), a privately-held provider of a cloud-based collaborative work platform. Podio became part of the Company's SaaS division and expands the Company's offerings of integrated cloud-based support for team-based collaboration. The total consideration for this transaction was approximately $43.6 million, net of $1.7 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $0.5 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. The Company recorded approximately $24.5 million of goodwill, which is not deductible for tax purposes, and acquired $24.6 million of identifiable intangible assets, of which $20.7 million is related to product related intangible assets and $3.9 million is related to other intangible assets. In addition, in connection with the acquisition, the Company assumed non-vested stock units which were converted into the right to receive up to 127,668 shares of the Company's common stock, for which the vesting period reset fully upon the closing of the transaction.

2012 Other Acquisitions

During the first quarter of 2012, the Company acquired all of the issued and outstanding securities of a privately-held company for total cash consideration of approximately $24.6 million, net of $0.6 million of cash acquired. This business became part of the Company’s Enterprise and Service Provider division. Transaction costs associated with the acquisition were approximately $0.5 million, of which the Company expensed $0.4 million and $0.1 million during the years ended December 31, 2012 and 2011, respectively, and are included in General and administrative expense in the accompanying consolidated statements of income. The Company recorded approximately $22.8 million of goodwill, which is not deductible for tax purposes, and acquired $11.0 million of identifiable intangible assets, all of which is related to product related intangible assets. In addition, in connection with this acquisition, the Company assumed non-vested stock units which were converted into the right to receive up to 13,481 shares of the Company's common stock and assumed certain stock options which are exercisable for 12,017 shares of the Company's common stock, for which the vesting period reset fully upon the closing of the transaction.

During the second quarter of 2012, the Company acquired all of the issued and outstanding securities of two privately-held companies for a total cash consideration of approximately $15.4 million, net of $0.2 million of cash acquired. The businesses became part of the Company's Enterprise and Service Provider division. Transaction costs associated with the

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

acquisitions were approximately $0.4 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisitions, the Company assumed non-vested stock units which were converted into the right to receive, in the aggregate, up to 66,459 shares of the Company's common stock, for which the vesting period reset fully upon the closing of each respective transaction.

During the third quarter of 2012, the Company acquired all of the issued and outstanding securities of two privately-held companies for a total cash consideration of approximately $5.3 million. One of the businesses became part of the Company's Enterprise and Service Provider division and the other became part of the Company's SaaS division. Transaction costs associated with the acquisitions were approximately $0.2 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisitions, the Company assumed non-vested stock units which were converted into the right to receive, in the aggregate, up to 13,487 shares of the Company's common stock, for which the vesting period reset fully upon the closing of each respective transaction.

Subsequent Events

On January 8, 2014, the Company acquired all of the issued and outstanding securities of Framehawk, Inc. ("Framehawk"). The Framehawk solution, which optimizes the delivery of virtual desktops and applications to mobile devices, will be combined with HDX technology in the Citrix XenApp and XenDesktop products to deliver an unparalleled user experience under adverse network conditions. The total preliminary consideration for this transaction was approximately $27.9 million, net of $0.3 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition are currently estimated at $0.1 million, all of which the Company expensed during the year ended December 31, 2013 and are included in General and administrative expense in the accompanying consolidated statements of income.

4. INVESTMENTS

Available-for-sale Investments

Investments in available-for-sale securities at fair value were as follows for the periods ended (in thousands):

	December 31, 2013									December 31, 2012
Description of the Securities	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Agency securities	$	453,922	$	1,177	$	(349	)	$	454,750	$	400,365	$	2,347	$	(5	)	$	402,707
Corporate securities	643,360		947		(216		)	644,091		404,546		947		(171		)	405,322
Municipal securities	53,698		81		(23		)	53,756		32,214		114		(15		)	32,313
Government securities	156,930		196		(47		)	157,079		39,863		131		(1		)	39,993
Total	$	1,307,910	$	2,401	$	(635	)	$	1,309,676	$	876,988	$	3,539	$	(192	)	$	880,335

The change in net unrealized gains (losses) on available-for-sale securities recorded in Other comprehensive income (loss) includes unrealized gains (losses) that arose from changes in market value of specifically identified securities that were held during the period, gains (losses) that were previously unrealized, but have been recognized in current period net income due to sales, as well as prepayments of available-for-sale investments purchased at a premium. This reclassification has no effect on total comprehensive income or equity and was not material for all periods presented. See Note 14 for more information related to comprehensive income.

The average remaining maturities of the Company’s short-term and long-term available-for-sale investments at December 31, 2013 were approximately five months and three years, respectively.

Realized Gains and Losses on Available-for-sale Investments

For the years ended December 31, 2013 and 2012, the Company had realized gains on the sales of available-for-sale investments of $3.0 million and $4.1 million, respectively. For the years ended December 31, 2013 and 2012, the Company had realized losses on available-for-sale investments of $2.7 million and $0.8 million, respectively, primarily related to prepayments at par of securities purchased at a premium. All realized gains and losses related to the sales of available-for-sale investments are included in Other (expense) income, net, in the accompanying consolidated statements of income.

The Company continues to monitor its overall investment portfolio and if the credit ratings of the issuers of its investments deteriorate or if the issuers experience financial difficulty, including bankruptcy, the Company may be required to

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

make adjustments to the carrying value of the securities in its investment portfolio and recognize impairment charges for declines in fair value that are determined to be other-than-temporary.

Other-Than-Temporary Impairment on Available-for-Sale Investments

There were no other-than-temporarily impaired available-for-sale investments during the twelve months ended December 31, 2013. During 2012, one of the Company’s available-for-sale investments with a carrying amount of $5.0 million was determined to be other-than-temporarily impaired. As a result of this determination, the investment was written down to its fair value of $2.5 million, resulting in an impairment charge of $2.5 million. The impairment charge is included in Other (expense) income, net in the accompanying consolidated statements of income.

Unrealized Losses on Available-for-Sale Investments

The gross unrealized losses on the Company’s available-for-sale investments that are not deemed to be other-than-temporarily impaired were $0.6 million and $0.2 million as of December 31, 2013 and 2012, respectively. Because the Company does not intend to sell any of its investments in an unrealized loss position and it is more likely than not that it will not be required to sell the securities before the recovery of its amortized cost basis, which may not occur until maturity, it does not consider the securities to be other-than-temporarily impaired.

Cost Method Investments

The Company held direct investments in privately-held companies of approximately $24.3 million and $26.2 million as of December 31, 2013 and 2012, respectively, which are accounted for based on the cost method and are included in Other assets in the accompanying consolidated balance sheets. The Company periodically reviews these investments for impairment. If the Company determines that an other-than-temporary impairment has occurred, it will write-down the investment to its fair value. During 2013 and 2012, certain companies in which the Company held direct investments were acquired by third parties and as a result of these sales transactions the Company recorded gains of $6.0 million and $16.5 million, respectively, which was included in Other (expense) income, net in the accompanying consolidated statements of income. The Company determined that certain cost method investments were impaired during 2013, 2012 and 2011 and recorded a total charge of $3.7 million, $3.5 million, and $3.5 million, respectively, which is included in Other (expense) income, net in the accompanying consolidated statements of income. See Note 5 for more information.

5. FAIR VALUE MEASUREMENTS

The authoritative guidance defines fair value as an exit price, representing the amount that would either be received to sell an asset or be paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

• Level 1. Observable inputs such as quoted prices in active markets for identical assets or liabilities;

• Level 2. Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and

• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Available-for-sale securities included in Level 2 are valued utilizing inputs obtained from an independent pricing service (the “Service”) which uses quoted market prices for identical or comparable instruments rather than direct observations of quoted prices in active markets. The Service gathers observable inputs for all of the Company’s fixed income securities from a variety of industry data providers including, for example, large custodial institutions and other third-party sources. Once the observable inputs are gathered by the Service, all data points are considered and an average price is determined. The Service’s providers utilize a variety of inputs to determine their quoted prices. These inputs may include interest rates, known historical trades, yield curve information, benchmark data, prepayment speeds, credit quality and broker/dealer quotes. Substantially all of the Company’s available-for-sale investments are valued utilizing inputs obtained from the Service and accordingly are categorized as Level 2 in the table below. The Company periodically independently assesses the pricing obtained from the Service and historically has not adjusted the Service's pricing as a result of this assessment. Available-for-sale securities are included in Level 3 when relevant observable inputs for a security are not available.

The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy. In certain instances, the inputs used to

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CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

measure fair value may meet the definition of more than one level of the fair value hierarchy. The input with the lowest level priority is used to determine the applicable level in the fair value hierarchy.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	As of December 31, 2013		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash and cash equivalents:
Cash	$	227,528	$	227,528	$	—	$	—
Money market funds	52,823		52,823		—		—
Corporate securities	389		—		389		—
Available-for-sale securities:
Agency securities	454,750		—		454,750		—
Corporate securities	644,091		—		633,801		10,291
Municipal securities	53,756		—		53,756		—
Government securities	157,079		—		157,079		—
Prepaid expenses and other current assets:
Foreign currency derivatives	4,952		—		4,952		—
Total assets	$	1,595,368	$	280,351	$	1,304,727	$	10,291
Accrued expenses and other current liabilities:
Foreign currency derivatives	1,743		—		1,743		—
Total liabilities	$	1,743	$	—	$	1,743	$	—

	As of December 31, 2012		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash and cash equivalents:
Cash	$	503,614	$	503,614	$	—	$	—
Money market funds	123,519		123,519		—		—
Corporate securities	16,476		—		16,476		—
Available-for-sale securities:
Agency securities	402,707		—		402,707		—
Corporate securities	405,322		—		401,981		3,341
Municipal securities	32,313		—		32,313		—
Government securities	39,993		—		39,993		—
Prepaid expenses and other current assets:
Foreign currency derivatives	4,157		—		4,157		—
Total assets	$	1,528,101	$	627,133	$	897,627	$	3,341
Accrued expenses and other current liabilities:
Foreign currency derivatives	4,162		—		4,162		—
Total liabilities	$	4,162	$	—	$	4,162	$	—

The Company’s fixed income available-for-sale security portfolio generally consists of high quality, investment grade securities from diverse issuers with a minimum credit rating of A-/A3 and a minimum weighted-average credit rating of AA-/Aa3. The Company values these securities based on pricing from the Service, whose sources may use quoted prices in active

F- 21

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value, and accordingly, the Company classifies all of its fixed income available-for-sale securities as Level 2.

The Company measures its cash flow hedges, which are classified as Prepaid expenses and other current assets and Accrued expenses and other current liabilities, at fair value based on indicative prices in active markets (Level 2 inputs).

Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)

The Company has invested in convertible debt securities of certain early-stage entities that are classified as available-for-sale investments. As quoted prices in active markets or other observable inputs were not available for these investments, in order to measure them at fair value, the Company utilized a discounted cash flow model using a discount rate reflecting the market risk inherent in holding securities of an early-stage enterprise, adjusted by the probability-weighted exit possibilities associated with the convertible debt securities. This methodology required the Company to make assumptions that were not directly or indirectly observable regarding the fair value of the convertible debt securities; accordingly they are a Level 3 valuation and included in the table below.

	Investments
	(in thousands)
Balance at December 31, 2012	$	3,341
Purchases of Level 3 securities	9,700
Transfers out of Level 3	(2,750		)
Balance at December 31, 2013	$	10,291

Transfers out of Level 3 relate to certain of the Company's investments in convertible debt securities of early-stage entities that were previously classified as available-for-sale investments to cost method investments upon conversion to equity ownership, which are included in Other assets in the accompanying consolidated balance sheets.

Assets Measured at Fair Value on a Non-recurring Basis Using Significant Unobservable Inputs (Level 3)

During 2013 and 2012, certain cost method investments with a combined carrying value of $9.3 million and $13.0 million, respectively, were determined to be impaired and have been written down to their fair values of $5.6 million and $9.5 million, respectively, resulting in impairment charges of $3.7 million and $3.5 million, respectively. The impairment charges are included in Other (expense) income, net in the accompanying consolidated financial statements for the years ended December 31, 2013 and 2012. In determining the fair value of cost method investments, the Company considers many factors including but not limited to operating performance of the investee, the amount of cash that the investee has on-hand, the ability to obtain additional financing and the overall market conditions in which the investee operates. The fair value of the cost method investment represents a Level 3 valuation as the assumptions used in valuing this investment were not directly or indirectly observable. See Note 4 for more information regarding cost method investments.

Additional Disclosures Regarding Fair Value Measurements

The carrying value of accounts receivable, accounts payable and accrued expenses and other current liabilities approximate their fair value due to the short maturity of these items.

6. ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

Accrued expenses consist of the following:

	December 31,
	2013		2012
	(In thousands)
Accrued compensation and employee benefits	$	141,065	$	130,835
Other accrued expenses	116,541		126,300
Total	$	257,606	$	257,135

F- 22

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

7. EMPLOYEE STOCK-BASED COMPENSATION AND BENEFIT PLANS

Plans

The Company’s stock-based compensation program is a long-term retention program that is intended to attract and reward talented employees and align stockholder and employee interests. As of December 31, 2013, the Company had two stock-based compensation plans under which it was granting stock options and non-vested stock units. The Company is currently granting stock-based awards from its Amended and Restated 2005 Equity Incentive Plan (as amended, the “2005 Plan”) and its Amended and Restated 2005 Employee Stock Purchase Plan (as amended, the “2005 ESPP”). In February 2014, the Company's Board of Directors approved the 2014 Equity Incentive Plan, which is subject to stockholder approval at the Company Annual Meeting of Stockholders on May 22, 2014. There will be no grants under this plan until the plan is approved by the Company's stockholders. In connection with certain of the Company’s acquisitions, the Company has assumed certain plans from acquired companies. The Company’s Board of Directors has provided that no new awards will be granted under the Company’s acquired stock plans. Awards previously granted under the Company's superseded and expired stock plans that are still outstanding typically expire ten years from the date of grant and will continue to be subject to all the terms and conditions of such plans, as applicable. The Company’s superseded and expired stock plan includes the Amended and Restated 1995 Stock Plan.

Under the terms of the 2005 Plan, the Company is authorized to grant incentive stock options (“ISOs”), non-qualified stock options (“NSOs”), non-vested stock, non-vested stock units, stock appreciation rights (“SARs”), and performance units and to make stock-based awards to full and part-time employees of the Company and its subsidiaries or affiliates, where legally eligible to participate, as well as to consultants and non-employee directors of the Company. Currently, the 2005 Plan provides for the issuance of a maximum of 48,600,000 shares of common stock. Under the 2005 Plan, ISOs must be granted at exercise prices no less than fair market value on the date of grant, except for ISOs granted to employees who own more than 10% of the Company’s combined voting power, for which the exercise prices must be no less than 110% of the fair market value at the date of grant. NSOs and SARs must be granted at no less than fair market value on the date of grant, or in the case of SARs in tandem with options, at the exercise price of the related option. Non-vested stock awards may be granted for such consideration in cash, other property or services, or a combination thereof, as determined by the Company’s Compensation Committee of its Board of Directors. Stock-based awards are generally exercisable or issuable upon vesting. The Company’s policy is to recognize compensation cost for awards with only service conditions and a graded vesting schedule on a straight-line basis over the requisite service period for the entire award. As of December 31, 2013, there were 26,960,367 shares of common stock reserved for issuance pursuant to the Company’s stock-based compensation plans and the Company had authorization under its 2005 Plan to grant 16,605,208 additional stock-based awards.

Under the 2005 ESPP, all full-time and certain part-time employees of the Company are eligible to purchase common stock of the Company twice per year at the end of a six-month payment period (a “Payment Period”). During each Payment Period, eligible employees who so elect may authorize payroll deductions in an amount no less than 1% nor greater than 10% of his or her base pay for each payroll period in the Payment Period. At the end of each Payment Period, the accumulated deductions are used to purchase shares of common stock from the Company up to a maximum of 12,000 shares for any one employee during a Payment Period. Shares are purchased at a price equal to 85% of the fair market value of the Company’s common stock on the last business day of a Payment Period. Employees who, after exercising their rights to purchase shares of common stock in the 2005 ESPP, would own shares representing 5% or more of the voting power of the Company’s common stock, are ineligible to participate under the 2005 ESPP. The 2005 ESPP provides for the issuance of a maximum of 10,000,000 shares of common stock. As of December 31, 2013, 2,991,834 shares had been issued under the 2005 ESPP. The Company recorded stock-based compensation costs related to the 2005 ESPP of $4.9 million, $4.0 million and $3.5 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Expense Information under the Authoritative Guidance

As required by the authoritative guidance, the Company estimates forfeitures of stock awards and recognizes compensation costs only for those awards expected to vest. Forfeiture rates are determined based on historical experience. The Company also considers whether there have been any significant changes in facts and circumstances that would affect its forfeiture rate quarterly. Estimated forfeitures are adjusted to actual forfeiture experience as needed. The Company recorded stock-based compensation costs, related deferred tax assets and tax benefits of $183.9 million, $57.1 million and $55.7 million, respectively, in 2013, $149.9 million, $46.7 million and $65.8 million, respectively, in 2012 and $92.9 million, $28.4 million and $67.9 million, respectively, in 2011.

The detail of the total stock-based compensation recognized by income statement classification is as follows (in thousands):

F- 23

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Income Statement Classifications	2013		2012		2011
Cost of services revenues	$	2,540	$	2,111	$	1,584
Research and development	63,448		54,616		31,763
Sales, marketing and services	65,549		51,519		31,354
General and administrative	52,404		41,694		28,208
Total	$	183,941	$	149,940	$	92,909

Stock Options

Stock options granted under the 2005 Plan typically have a five-year life and vest over three years, with 33.3% of the shares underlying the option vesting on the first anniversary of the date of grant and the remainder of the underlying shares vesting in equal installments at a rate of 2.78% thereafter (the "Standard Vesting Rate"). The Company also assumes stock options from certain of its acquisitions for which the vesting period is typically reset to vest over three years at the Standard Vesting Rate. During the first quarter of 2013, the Company assumed in-the-money options from the Zenprise acquisition. See Note 3 for more information related to acquisitions.

A summary of the status and activity of the Company’s fixed option awards is as follows:

Options	Number of Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2012	7,589,532		$	54.15	2.70
Assumed	285,817		11.85
Exercised	(2,168,531	)	33.97
Forfeited or expired	(299,841	)	60.90
Outstanding at December 31, 2013	5,406,977		59.64		2.15	$	57,583
Vested or expected to vest	5,366,212		59.78		2.14	$	56,548
Exercisable at December 31, 2013	4,438,465		61.88		1.93	$	38,167

The Company recognized stock-based compensation expense of $48.9 million, $56.4 million and $48.2 million related to options for the years ended December 31, 2013, 2012 and 2011, respectively. As of December 31, 2013, there was $29.7 million of total unrecognized compensation cost related to stock options. That cost is expected to be recognized over a weighted-average period of 1.22 years. The total intrinsic value of stock options exercised during 2013, 2012 and 2011 was $77.7 million, $131.4 million and $169.2 million, respectively.

Stock Option Valuation Information

The Company uses the Black-Scholes option pricing model to determine the fair value of stock options. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price, as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price, volatility over the term of the awards, actual employee exercise behaviors, risk-free interest rate and expected dividends. For purposes of valuing stock options, the Company determined the expected volatility factor by considering the implied volatility in two-year market-traded options of the Company’s common stock based on third party volatility quotes in accordance with the provisions of SAB No. 107, Share Based Payment. The Company’s decision to use implied volatility was based upon the availability of actively traded options on the Company’s common stock and its assessment that implied volatility is more representative of future stock price trends than historical volatility. The approximate risk free interest rate was based on the implied yield available on U.S. Treasury zero-coupon issues with remaining terms equivalent to the Company’s expected terms on stock options. The expected term of stock options was based on the historical employee exercise patterns. In years when a significant number of stock options are granted, the Company analyzes its historical pattern of option exercises based on certain demographic characteristics annually and has historically determined that there were no meaningful differences in option exercise activity based on demographic characteristics. The Company does not intend to pay dividends on its common stock in the foreseeable future. Accordingly, the Company used a dividend yield of zero in its option pricing model. The weighted-average fair value of stock options granted and/or assumed during 2013, 2012 and 2011 was $56.97, $23.95 and $29.91, respectively.

F- 24

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The assumptions used to value options granted and/or assumed are as follows:

	Stock options granted or assumed during
	2013	2012	2011
Expected volatility factor	0.39	0.38 - 0.43	0.38 - 0.50
Approximate risk free interest rate	0.4%	0.5% - 0.7%	0.6% - 1.1%
Expected term (in years)	3.35	3.91	3.27 - 3.91
Expected dividend yield	0%	0%	0%

Non-vested Stock Units

Market and Service Condition Stock Units

In March 2013 and 2012, the Company granted senior level employees non-vested stock unit awards representing, in the aggregate, 399,029 and 418,809 non-vested stock units, respectively, that vest based on certain target market performance and service conditions. The number of non-vested stock units underlying each award will be determined within sixty days of the calendar year following the end of a three-year performance period ending December 31, 2015 for the March 2013 awards and December 31, 2014 for the March 2012 awards. The attainment level under the award will be based on the Company's total return to stockholders over the performance period compared to the return on the Nasdaq Composite Total Return Index (the "XCMP"). If the Company's return is positive and meets or exceeds the indexed return, the number of non-vested stock units issued will be based on interpolation, with the maximum number of non-vested stock units issuable pursuant to the award capped at 200% of the target number of non-vested stock units set forth in the award agreement if the Company's return exceeds the indexed return by 40% or more. If the Company's return over the performance period is positive but underperforms the index, a number of non-vested stock units will be issued, below the target award, based on interpolation; however, no non-vested stock units will be issued if the Company's return underperforms the index by more than 20% over the performance period. In the event the Company's return to stockholders is negative but still meets or exceeds the indexed return, only 75% of the target award shall be issued. If the awardee is not employed by the Company at the end of the performance period; the extent to which the awardee will vest in the award, if at all, is dependent upon the timing and character of the termination as provided in the award agreement. Each non-vested stock unit, upon vesting, represents the right to receive one share of the Company's common stock.

The market condition requirements are reflected in the grant date fair value of the award, and the compensation expense for the award will be recognized assuming that the requisite service is rendered regardless of whether the market conditions are achieved. The grant date fair value of the non-vested performance stock unit awards was determined through the use of a Monte Carlo simulation model, which utilized multiple input variables that determined the probability of satisfying the market condition requirements applicable to each award as follows:

	March 2013 Grant		March 2012 Grant
Expected volatility factor	0.16 - 0.42		0.21 - 0.39
Risk free interest rate	0.33	%	0.47	%
Expected dividend yield	0	%	0	%

The range of expected volatilities utilized was based on the historical volatilities of the Company's common stock and the XCMP. The Company chose to use historical volatility to value these awards because historical stock prices were used to develop the correlation coefficients between the Company and the XCMP in order to model the stock price movements. The volatilities used were calculated over the most recent 2.75 year period, which was the remaining term of the performance period at the date of grant. The risk free interest rate was based on the implied yield available on U.S. Treasury zero-coupon issues with remaining terms equivalent to the remaining performance period. The Company does not intend to pay dividends on its common stock in the foreseeable future. Accordingly, the Company used a dividend yield of zero in its model. The estimated fair value of each award as of the date of grant was $89.93 for the March 2013 grant and $89.95 for the March 2012 grant.

F- 25

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Service Based Stock Units

The Company also awards senior level and certain other employees non-vested stock units granted under the 2005 Plan that vest based on service. The majority of these non-vested stock unit awards vest 33.33% on each anniversary subsequent to the date of the award. The remaining awards vest 100% on the third anniversary of the grant date. Each non-vested stock unit, upon vesting, represents the right to receive one share of the Company’s common stock. In addition, the Company awards non-vested stock units to all of its non-employee directors. These awards vest monthly in 12 equal installments based on service and, upon vesting, each stock unit represents the right to receive one share of the Company's common stock.

The following table summarizes the Company's non-vested stock unit activity for the year ended December 31, 2013:

	Number of Shares		Weighted- Average Fair Value at Grant Date
Non-vested stock units at December 31, 2012	3,607,561		$	74.70
Granted	2,765,386		71.84
Vested	(1,375,165	)	69.36
Forfeited	(365,803	)	76.16
Non-vested stock units at December 31, 2013	4,631,979		74.47

For the years ended December 31, 2013, 2012 and 2011, the Company recognized stock-based compensation expense of $130.2 million, $89.5 million and $40.0 million, respectively, related to non-vested stock units. The fair value of the non-vested stock units released in 2013, 2012, and 2011 was $95.4 million, $50.3 million and $21.3 million, respectively. As of December 31, 2013, there was $237.8 million of total unrecognized compensation cost related to non-vested stock units. The unrecognized cost is expected to be recognized over a weighted-average period of 1.96 years.

Benefit Plan

The Company maintains a 401(k) benefit plan allowing eligible U.S.-based employees to contribute up to 60% of their annual compensation, limited to an annual maximum amount as set periodically by the IRS. The Company, at its discretion, may contribute up to $0.50 for each dollar of employee contribution. The Company’s total matching contribution to an employee is typically made at 3% of the employee’s annual compensation. The Company’s matching contributions were $12.7 million, $10.5 million and $9.1 million in 2013, 2012 and 2011, respectively. The Company’s contributions vest over a four-year period at 25% per year.

8. CAPITAL STOCK

Stock Repurchase Programs

The Company’s Board of Directors authorized an ongoing stock repurchase program with a total repurchase authority granted to the Company of $3.9 billion, of which $500.0 million was approved in October 2013. The Company may use the approved dollar authority to repurchase stock at any time until the approved amount is exhausted. The objective of the Company’s stock repurchase program is to improve stockholders’ returns. At December 31, 2013, approximately $429.3 million was available to repurchase common stock pursuant to the stock repurchase program. All shares repurchased are recorded as treasury stock in the Company's consolidated balance sheets. A portion of the funds used to repurchase stock over the course of the program was provided by proceeds from employee stock option exercises and the related tax benefit.

The Company is authorized to make open market purchases of its common stock using general corporate funds through open market purchases or pursuant to a Rule 10b5-1 plan.

During the year ended December 31, 2013, the Company expended approximately $406.3 million on open market purchases, repurchasing 6,563,986 shares of outstanding common stock at an average price of $61.90.

During the year ended December 31, 2012, the Company expended approximately $251.0 million on open market purchases, repurchasing 3,550,817 shares of outstanding common stock at an average price of $70.69.

During the year ended December 31, 2011, the Company expended approximately $424.8 million on open market purchases, repurchasing 6,275,470 shares of outstanding common stock at an average price of $67.70.

F- 26

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Shares for Tax Withholding

During the years ended December 31, 2013, 2012 and 2011, the Company withheld 444,657 shares, 269,745 shares and 182,203 shares, respectively, from stock units that vested. Amounts withheld to satisfy minimum tax withholding obligations that arose on the vesting of stock units was $31.0 million, $20.2 million and $13.3 million, for 2013, 2012 and 2011, respectively. These shares are reflected as treasury stock in the Company's consolidated balance sheets and statements of equity and the related cash outlays reduce the Company's total stock repurchase authority.

Preferred Stock

The Company is authorized to issue 5,000,000 shares of preferred stock, $0.01 par value per share. No shares of such preferred stock were issued and outstanding at December 31, 2013 or 2012.

9. COMMITMENTS AND CONTINGENCIES

Leases

The Company leases certain office space and equipment under various operating leases. In addition to rent, the leases require the Company to pay for taxes, insurance, maintenance and other operating expenses. Certain of these leases contain stated escalation clauses while others contain renewal options. The Company recognizes rent expense on a straight-line basis over the term of the lease, excluding renewal periods, unless renewal of the lease is reasonably assured.

Rental expense for the years ended December 31, 2013, 2012 and 2011 totaled approximately $70.9 million, $65.1 million and $56.5 million, respectively. Sublease income for the years ended December 31, 2013, 2012 and 2011 was approximately $0.3 million, $0.2 million and $0.2 million, respectively. Lease commitments under non-cancelable operating leases with initial or remaining terms in excess of one year and sublease income associated with non-cancelable subleases, are as follows:

	Operating Leases		Sublease Income
	(In thousands)
Years ending December 31,
2014	$	60,982	$	255
2015	46,770		260
2016	39,353		227
2017	22,064		218
2018	18,536		203
Thereafter	88,885		—
Total	$	276,590	$	1,163

Legal Matters

The Company accrues a liability for legal contingencies when it believes that it is both probable that a liability has been incurred and that it can reasonably estimate the amount of the loss. The Company reviews these accruals and adjusts them to reflect ongoing negotiations, settlements, rulings, advice of legal counsel and other relevant information. To the extent new information is obtained and the Company's views on the probable outcomes of claims, suits, assessments, investigations or legal proceedings change, changes in the Company's accrued liabilities would be recorded in the period in which such determination is made. For the Other Matters referenced below, the amount of liability is not probable or the amount cannot be reasonably estimated; and, therefore, accruals have not been made. In addition, in accordance with the relevant authoritative guidance, for matters in which the likelihood of material loss is at least reasonably possible, the Company provides disclosure of the possible loss or range of loss. If a reasonable estimate cannot be made, however, the Company will provide disclosure to that effect.

On April 11, 2008, SSL Services, LLC (“SSL Services”) filed a suit for patent infringement against the Company in the United States District Court for the Eastern District of Texas (the “SSL Matter”). SSL Services alleged that the Company infringed U.S. Patent Nos. 6,061,796 (the “'796 patent”) and 6,158,011 (the “'011 patent”). The Company denied infringement and asserted that the patents-in-suit were invalid. A jury trial was held on SSL Services' claims, and on June 18, 2012, the jury found that the Company does not infringe the '796 patent and found that the Company willfully infringes the '011 patent through the sale and use of certain products. The jury awarded SSL Services $10.0 million. On September 17, 2012, the court issued a final judgment confirming the jury award of $10.0 million in damages and added $5.0 million in enhanced damages

F- 27

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

and approximately $5.0 million in prejudgment interest on the damages award. The Company does not believe that any of its products infringe the '011 patent, and the Company believes that the '011 patent is invalid. Accordingly, no accrual has been made related to this matter. The Company has appealed the district court's judgment on the '011 patent.

In addition to the SSL Matter and due to the nature of the Company's business, the Company is subject to patent infringement claims, including current suits against it or one or more of its wholly-owned subsidiaries alleging infringement by various Company products and services (the "Other Matters"). The Company believes that it has meritorious defenses to the allegations made in its pending cases and intends to vigorously defend these lawsuits; however, it is unable currently to determine the ultimate outcome of these or similar matters or the potential exposure to loss, if any. In addition, the Company is a defendant in various litigation matters generally arising out of the normal course of business. Although it is difficult to predict the ultimate outcomes of these cases, the Company believes that it is not reasonably possible that the ultimate outcomes will materially and adversely affect its business, financial position, results of operations or cash flows.

Guarantees

The authoritative guidance requires certain guarantees to be recorded at fair value and requires a guarantor to make disclosures, even when the likelihood of making any payments under the guarantee is remote. For those guarantees and indemnifications that do not fall within the initial recognition and measurement requirements of the authoritative guidance, the Company must continue to monitor the conditions that are subject to the guarantees and indemnifications, as required under existing generally accepted accounting principles, to identify if a loss has been incurred. If the Company determines that it is probable that a loss has been incurred, any such estimable loss would be recognized. The initial recognition and measurement requirements do not apply to the provisions contained in the majority of the Company’s software license agreements that indemnify licensees of the Company’s software from damages and costs resulting from claims alleging that the Company’s software infringes the intellectual property rights of a third party. The Company has not made material payments pursuant to these provisions as of December 31, 2013. The Company has not identified any losses that are probable under these provisions and, accordingly, the Company has not recorded a liability related to these indemnification provisions.

Purchase Obligations

The Company has agreements with suppliers to purchase inventory and estimates its non-cancelable obligations under these agreements for the fiscal year ended December 31, 2014 to be approximately $13.1 million. The Company also has contingent obligations to purchase inventory for the fiscal year ended December 31, 2014, which are based on amount of usage, of approximately $18.2 million. The Company does not have any purchase obligations beyond December 31, 2014.

10. INCOME TAXES

The United States and foreign components of income before income taxes are as follows:

	2013		2012		2011
	(In thousands)
United States	$	142,085	$	200,802	$	176,824
Foreign	245,805		209,427		253,673
Total	$	387,890	$	410,229	$	430,497

F- 28

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The components of the provision for income taxes are as follows:

	2013			2012			2011
	(In thousands)
Current:
Federal	$	51,389		$	81,019		$	50,022
Foreign	37,221			30,059			29,169
State	11,605			17,395			11,905
Total current	100,215			128,473			91,096
Deferred:
Federal	(34,897		)	(64,960		)	(8,631		)
Foreign	(8,413		)	1,409			(4,792		)
State	(8,538		)	(7,240		)	(2,806		)
Total deferred	(51,848		)	(70,791		)	(16,229		)
Total provision	$	48,367		$	57,682		$	74,867

The following table presents the breakdown between current and non-current net deferred tax assets:

	December 31,
	2013			2012
	(In thousands)
Deferred tax assets - current	$	48,470		$	36,846
Deferred tax liabilities - current	(364		)	(876		)
Deferred tax assets- non current	115,418			43,097
Deferred tax liabilities - non current	(13,127		)	(19,756		)
Total net deferred tax assets	$	150,397		$	59,311

The significant components of the Company’s deferred tax assets and liabilities consisted of the following:

	December 31,
	2013			2012
	(In thousands)
Deferred tax assets:
Accruals and reserves	$	25,556		$	36,128
Deferred revenue	55,688			41,820
Tax credits	60,519			43,657
Net operating losses	103,329			89,856
Other	10,537			8,452
Stock based compensation	72,074			54,852
Depreciation and amortization	1,675			—
Valuation allowance	(26,465		)	(18,185		)
Total deferred tax assets	302,913			256,580
Deferred tax liabilities:
Depreciation and amortization	—			(40,159		)
Acquired technology	(136,258		)	(140,017		)
Prepaid expenses	(16,258		)	(17,093		)
Total deferred tax liabilities	(152,516		)	(197,269		)
Total net deferred tax assets	$	150,397		$	59,311

The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if it is not more likely than not that some portion or all of the deferred tax assets will be realized. At December 31, 2013, the Company determined that a $26.5 million valuation allowance relating to deferred tax assets for net operating losses and tax credits was necessary.

F- 29

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company does not expect to remit earnings from its foreign subsidiaries. Undistributed earnings of the Company’s foreign subsidiaries amounted to approximately $1,238.0 million at December 31, 2013. Those earnings are considered to be permanently reinvested and, accordingly, no U.S. federal and state income taxes have been provided thereon. Upon distribution of those earnings in the form of dividends or otherwise, the Company could be subject to both U.S. income taxes (subject to an adjustment for foreign tax credits) and withholding taxes payable to various foreign countries. The Company maintains certain strategic management and operational activities in overseas subsidiaries and its foreign earnings are taxed at rates that are generally lower than in the United States.

At December 31, 2013, the Company had $220.0 million of remaining net operating loss carry forwards in the United States from acquisitions. The utilization of these net operating loss carry forwards are limited in any one year pursuant to Internal Revenue Code Section 382 and begin to expire in 2019. At December 31, 2013, the Company had $52.0 million of remaining net operating loss carry forwards in foreign jurisdictions that do not expire.

At December 31, 2013, the Company had research and development tax credit carry forwards of approximately $55.6 million that begin to expire in 2024.

A reconciliation of the Company’s effective tax rate to the statutory federal rate is as follows:

	Year Ended December 31,
	2013		2012		2011
Federal statutory taxes	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	1.2		1.9		1.7
Foreign operations	(14.8	)	(10.2	)	(14.5	)
Permanent differences	(1.1	)	(2.0	)	1.2
Tax credits	(10.9	)	(4.7	)	(7.1	)
Stock option compensation	0.4		0.1		0.1
Change in accruals for uncertain tax positions	3.3		(5.3	)	1.4
Other	(0.6	)	(0.7	)	(0.4	)
	12.5	%	14.1	%	17.4	%

The Company’s effective tax rate generally differs from the U.S. federal statutory rate of 35% due primarily to lower tax rates on earnings generated by the Company’s foreign operations that are taxed primarily in Switzerland. The Company has not provided for U.S. taxes for those earnings because it plans to reinvest all of those earnings indefinitely outside the United States. It was not practicable to determine the amount of unrecognized deferred tax liability for temporary differences related to investments in foreign subsidiaries.

The Company and certain of its subsidiaries are subject to U.S. federal income taxes, as well as income taxes of multiple state and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years prior to 2009.

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2013 and 2012 is as follows (in thousands):

Balance at January 1, 2012	$	79,199
Additions based on tax positions related to the current year	2,459
Additions for tax positions of prior years	9,558
Reductions related to the expiration of statutes of limitations	(33,594		)
Settlements	(13,718		)
Balance at December 31, 2012	43,904
Additions based on tax positions related to the current year	13,694
Additions for tax positions of prior years	10,611
Reductions related to the expiration of statutes of limitations	(2,116		)
Settlements	(2,301		)
Balance at December 31, 2013	$	63,792

F- 30

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company's unrecognized tax benefits may change significantly over the next 12 months.

The Company recognizes interest accrued related to unrecognized tax benefits and penalties in income tax expense. During the year ended December 31, 2013, the Company recognized $0.8 million of expense related to interest and penalties. The Company has no amounts accrued for the payment of interest and penalties at December 31, 2013.

The federal research and development credit expired on December 31, 2011. On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law. Under this act, the federal research and development credit was retroactively extended for amounts paid or incurred after December 31, 2011 and before January 1, 2014. The effects of these changes in the tax law will result in net tax benefits of approximately $10.7 million, which were recognized in 2013, the year in which the law was enacted.

11. SEGMENT INFORMATION

The Enterprise and Service Provider division and the SaaS division constitute the Company’s two reportable segments. The Company does not engage in intercompany revenue transfers between segments. The Company’s chief operating decision maker (“CODM”) evaluates the Company’s performance based primarily on profitability from its Enterprise and Service Provider division products and SaaS division products. Segment profit for each segment includes certain research and development, sales, marketing, general and administrative expenses directly attributable to the segment as well as other corporate costs allocated to the segment and excludes certain expenses that are managed outside of the reportable segments. Costs excluded from segment profit primarily consist of certain restructuring charges, stock-based compensation costs, amortization of product related intangible assets, amortization of other intangible assets, net interest and Other (expense) income, net. Accounting policies of the Company’s segments are the same as its consolidated accounting policies.

International revenues (sales outside of the United States) accounted for approximately 45.4%, 45.3% and 43.2% of the Company’s net revenues for the year ended December 31, 2013, 2012, and 2011, respectively. Net revenues and segment profit for 2013, 2012 and 2011 classified by the Company’s reportable segments, are presented below:

	2013			2012			2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division	$	2,335,562		$	2,074,800		$	1,778,646
SaaS division	582,872			511,323			427,746
Consolidated	$	2,918,434		$	2,586,123		$	2,206,392
Segment profit:
Enterprise and Services Provider division	$	588,138		$	562,794		$	504,883
SaaS division	116,061			92,498			76,147
Unallocated expenses (1):
Amortization of intangible assets	(139,541		)	(114,574		)	(71,131		)
Restructuring	—			—			(24		)
Net interest and other income	7,173			19,451			13,531
Stock-based compensation	(183,941		)	(149,940		)	(92,909		)
Consolidated income before income taxes	$	387,890		$	410,229		$	430,497

⁽¹⁾  Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

F- 31

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Identifiable assets classified by the Company’s reportable segments are shown below. Long-lived assets consist of property and equipment, net, and are shown below.

	December 31,
	2013		2012
	(In thousands)
Identifiable assets:
Enterprise and Service Provider division	$	4,662,724	$	4,246,292
SaaS division	549,525		550,110
Total identifiable assets	$	5,212,249	$	4,796,402

	December 31,
	2013		2012
	(In thousands)
Long-lived assets, net:
United States	$	258,114	$	231,812
United Kingdom	29,382		30,633
Other countries	51,500		40,849
Total long-lived assets, net	$	338,996	$	303,294

The increases in identifiable assets are primarily due to goodwill and intangible assets recorded in conjunction with the Company's 2013 Acquisitions. See Note 3 for additional information regarding the Company’s acquisitions.

In fiscal years 2013, 2012 and 2011, one distributor, Ingram Micro, accounted for 14%, 16% and 17%, respectively, of the Company’s total net revenues. The Company’s distributor arrangements with Ingram Micro consist of several non-exclusive, independently negotiated agreements with its subsidiaries, each of which cover different countries or regions. Each of these agreements is separately negotiated and is independent of any other contract (such as a master distribution agreement), one of which was individually responsible for over 10% of the Company’s total net revenues in each of the last three fiscal years. In fiscal years 2013, 2012 and 2011, there were no resellers that accounted for over 10% of the Company’s total net revenues. Total net revenues associated with Ingram Micro are included in the Company's Enterprise and Service Provider division.

Revenues by product grouping for the Company’s Enterprise and Service Provider division and SaaS division were as follows for the years ended:

	December 31,
	2013		2012		2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division
Mobile and Desktop revenues(1)	$	1,549,383	$	1,450,850	$	1,278,798
Networking and Cloud revenues(2)	634,598		496,608		385,518
Professional services(3)	138,879		119,061		91,496
Other	12,702		8,281		22,834
Total Enterprise and Service Provider division revenues	2,335,562		2,074,800		1,778,646
SaaS division revenues	582,872		511,323		427,746
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392

(1) Mobile and Desktop revenues are primarily comprised of sales from the Company’s desktop and application virtualization products, XenDesktop and XenApp, and the Company's Mobility products, which include XenMobile and related license updates and maintenance and support.

F- 32

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(2) Networking and Cloud revenues are primarily comprised of sales from the Company’s cloud networking products, which include NetScaler, CloudBridge and ByteMobile Smart Capacity, and the Company’s cloud platform products which include XenServer, CloudPlatform and CloudPortal and related license updates and maintenance and support.

(3) Professional services revenues are primarily comprised of revenues from consulting services and product training and certification services.

Revenues by Geographic Location

The following table presents revenues by segment and geographic location, for the years ended:

	December 31,
	2013		2012		2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division
Americas	$	1,263,673	$	1,106,801	$	993,062
EMEA	785,862		691,111		576,953
Asia-Pacific	286,027		276,888		208,631
Total Enterprise and Service Provider division revenues	2,335,562		2,074,800		1,778,646
SaaS division
Americas	488,307		433,263		367,260
EMEA	73,529		63,484		50,711
Asia-Pacific	21,036		14,576		9,775
Total SaaS division revenues	582,872		511,323		427,746
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392

Export revenue represents shipments of finished goods and services from the United States to international customers, primarily in Latin America and Canada. Shipments from the United States to international customers for 2013, 2012 and 2011 were $215.3 million, $127.4 million and $106.0 million, respectively.

12. DERIVATIVE FINANCIAL INSTRUMENTS

Derivatives Designated as Hedging Instruments

As of December 31, 2013, the Company’s derivative assets and liabilities primarily resulted from cash flow hedges related to its forecasted operating expenses transacted in local currencies. A substantial portion of the Company’s overseas expenses are and will continue to be transacted in local currencies. To protect against fluctuations in operating expenses and the volatility of future cash flows caused by changes in currency exchange rates, the Company has established a program that uses foreign exchange forward contracts to hedge its exposure to these potential changes. The terms of these instruments, and the hedged transactions to which they relate, generally do not exceed twelve months and the maximum term is eighteen months.

Generally, when the dollar is weak, foreign currency denominated expenses will be higher, and these higher expenses will be partially offset by the gains realized from the Company’s hedging contracts. Conversely, if the dollar is strong, foreign currency denominated expenses will be lower. These lower expenses will in turn be partially offset by the losses incurred from the Company’s hedging contracts. The change in the derivative component in Accumulated other comprehensive income (loss) includes unrealized gains or losses that arose from changes in market value of the effective portion of derivatives that were held during the period, and gains or losses that were previously unrealized but have been recognized in the same line item as the forecasted transaction in current period net income due to termination or maturities of derivative contracts. This reclassification has no effect on total comprehensive income or equity.

The total cumulative unrealized gain on cash flow derivative instruments was $2.9 million and nil at December 31, 2013 and 2012, respectively, and is included in Accumulated other comprehensive income (loss) in the accompanying consolidated balance sheets. The net unrealized gain as of December 31, 2013 is expected to be recognized in income over the next twelve months at the same time the hedged items are recognized in income.

F- 33

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Derivatives not Designated as Hedges

A substantial portion of the Company’s overseas assets and liabilities are and will continue to be denominated in local currencies. To protect against fluctuations in earnings caused by changes in currency exchange rates when remeasuring the Company’s balance sheet, it utilizes foreign exchange forward contracts to hedge its exposure to this potential volatility.

These contracts are not designated for hedge accounting treatment under the authoritative guidance. Accordingly, changes in the fair value of these contracts are recorded in Other (expense) income, net.

Fair Values of Derivative Instruments

	Asset Derivatives				Liability Derivatives
	(In thousands)
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Derivatives Designated as Hedging Instruments	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value
Foreign currency forward contracts	Prepaid expenses and other current assets	$4,559	Prepaid expenses and other current assets	$4,157	Accrued expenses and other current liabilities	$1,578	Accrued expenses and other current liabilities	$4,162
	Asset Derivatives				Liability Derivatives
	(In thousands)
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value
Foreign currency forward contracts	Prepaid expenses and other current assets	$393	Prepaid expenses and other current assets	$448	Accrued expenses and other current liabilities	$165	Accrued expenses and other current liabilities	$52

The Effect of Derivative Instruments on Financial Performance

	For the Year ended December 31,
	(In thousands)
Derivatives in Cash Flow Hedging Relationships	Amount of Gain Recognized in Other Comprehensive Income (Loss) (Effective Portion)				Location of Loss Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Effective Portion)	Amount of Loss Reclassified from Accumulated Other  Comprehensive Income (Loss) (Effective Portion)
	2013		2012			2013			2012
Foreign currency forward contracts	$	2,862	$	5,164	Operating expenses	$	(2,929	)	$	(5,817	)

There was no material ineffectiveness in the Company’s foreign currency hedging program in the periods presented.

	For the Year ended December 31,
	(In thousands)
Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative
		2013		2012
Foreign currency forward contracts	Other (expense) income, net	$	3,138	$	(1,341	)

F- 34

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Outstanding Foreign Currency Forward Contracts

As of December 31, 2013, the Company had the following net notional foreign currency forward contracts outstanding (in thousands):

Foreign Currency	Currency Denomination
Australian dollars	AUD 8,012
British pounds sterling	GBP 34,475
Canadian dollars	CAD 6,714
Chinese renminbi	CNY 81,250
Danish krone	DKK 1,500
Euro	EUR 27,820
Hong Kong dollars	HKD 51,063
Indian rupees	INR 1,201,622
Japanese yen	JPY 169,004
New Zealand dollars	NZD 300
Singapore dollars	SGD 12,600
Swiss francs	CHF 19,741

13. NET INCOME PER SHARE ATTRIBUTABLE TO CITRIX SYSTEMS, INC. STOCKHOLDERS

The following table sets forth the computation of basic and diluted net income per share attributable to Citrix Systems, Inc. stockholders (in thousands, except per share information):

	Year Ended December 31,
	2013		2012		2011
Numerator:
Net income attributable to Citrix Systems, Inc. stockholders	$	339,523	$	352,547	$	356,322
Denominator:
Denominator for basic earnings per share - weighted-average shares outstanding	186,672		186,722		187,315
Effect of dilutive employee stock awards:
Employee stock awards	1,573		2,407		3,326
Denominator for diluted earnings per share - weighted-average shares outstanding	188,245		189,129		190,641
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	$	1.82	$	1.89	$	1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	$	1.80	$	1.86	$	1.87
Anti-dilutive weighted-average shares	3,647		3,464		2,576

F- 35

CITRIX SYSTEMS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

14. COMPREHENSIVE INCOME

The changes in Accumulated other comprehensive income (loss) by component, net of tax, are as follows (in thousands):

	Foreign currency			Unrealized gain (loss) on available-for-sale securities			Unrealized gain (loss) on derivative instruments			Other comprehensive gain (loss) on pension liability			Total
	(In thousands)
Balance at December 31, 2012	$	(3,024	)	$	2,426		$	(10	)	$	(7,097	)	$	(7,705	)
Other comprehensive income before reclassifications	8,482			(985		)	(67		)	2,500			9,930
Amounts reclassified from Accumulated other comprehensive income (loss)	—			(203		)	2,929			—			2,726
Net current period other comprehensive income	8,482			(1,188		)	2,862			2,500			12,656
Balance at December 31, 2013	$	5,458		$	1,238		$	2,852		$	(4,597	)	$	4,951

Income tax expense or benefit allocated to each component of other comprehensive income is not material.

Reclassifications out of Accumulated other comprehensive income (loss) are as follows (in thousands):

	For the Twelve Months Ended December 31, 2013
	(In thousands)
Details about Accumulated other comprehensive income (loss) components	Amount reclassified from Accumulated other comprehensive income (loss), net of tax			Affected line item in the Consolidated Statements of Income
Unrealized net gain on available-for-sale securities	$	203		Other (expense) income, net
Unrealized net losses on cash flow hedges	(2,929		)	Operating expenses *
	$	(2,726	)

* Operating expenses amounts allocated to Research and development, Sales, marketing and services, and General and administrative are not individually significant.

15. RECENT ACCOUNTING PRONOUNCEMENTS

In July 2013, the Financial Accounting Standards Board issued an accounting standard update that provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carry forward, a similar tax loss, or a tax credit carry forward exists. Under the new standard, the Company's unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carry forward. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal year 2014 and applied prospectively. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

F- 36

CITRIX SYSTEMS, INC.

SUPPLEMENTAL FINANCIAL INFORMATION

QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2013
Net revenues	$	672,899	$	730,384	$	712,731	$	802,420	$	2,918,434
Gross margin	557,985		603,144		588,798		665,712		2,415,639
Income from operations	56,608		75,888		87,367		160,854		380,717
Net income attributable to Citrix Systems, Inc.	59,688		64,461		76,730		138,644		339,523
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	0.32		0.34		0.41		0.75		1.82
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	0.32		0.34		0.41		0.74		1.80
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2012
Net revenues	$	589,495	$	615,210	$	641,422	$	739,996	$	2,586,123
Gross margin	503,152		520,852		535,354		622,628		2,181,986
Income from operations	80,750		82,192		82,415		145,421		390,778
Net income attributable to Citrix Systems, Inc.	68,267		92,006		78,245		114,029		352,547
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	0.37		0.49		0.42		0.61		1.89
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	0.36		0.49		0.41		0.60		1.86

The sum of the quarterly net income per share amounts do not add to the annual earnings per share amount due to the weighting of common and common equivalent shares outstanding during each of the respective periods.

The Consolidated Statement of Cash Flows for the year ended December 31, 2013 reflects an adjustment of approximately $17.3 million made to the captions “Excess tax benefit from stock based compensation” and “Income taxes, net” for the three months ended March 31, 2013. Accordingly, the adjusted net cash provided by operating activities and net cash used in financing activities for the three months ended March 31, 2013 is approximately $266.6 million and $28.9 million, respectively.

CITRIX SYSTEMS, INC.

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

	Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts					Deductions				Balance at End of Period
	(In thousands)
2013
Deducted from asset accounts:
Allowance for doubtful accounts	$	3,883	$	1,046	$	—				$	1,637	(2	)	$	3,292
Allowance for returns	2,564		—		4,473			(1	)	4,975		(4	)	2,062
Valuation allowance for deferred tax assets	18,185		—		8,280			(6	)	—				26,465
2012
Deducted from asset accounts:
Allowance for doubtful accounts	$	2,564	$	1,784	$	1,119		(3	)	$	1,584	(2	)	$	3,883
Allowance for returns	1,361		—		10,742			(1	)	9,539		(4	)	2,564
Valuation allowance for deferred tax assets	9,235		—		8,950			(6	)	—				18,185
2011
Deducted from asset accounts:
Allowance for doubtful accounts	$	3,409	$	266	$	1,468		(3	)	$	2,579	(2	)	$	2,564
Allowance for returns	850		—		5,542			(1	)	5,031		(4	)	1,361
Valuation allowance for deferred tax assets	13,999		—		(4,764		)	(5	)	—				9,235

⁽¹⁾  Charged against revenues.

⁽²⁾  Uncollectible accounts written off, net of recoveries.

⁽³⁾  Adjustments from acquisitions.

⁽⁴⁾  Credits issued for returns.

⁽⁵⁾  Related to deferred tax assets on unrealized losses and acquisitions.

⁽⁶⁾  Related to deferred tax assets on foreign tax credits, net operating loss carryforwards, and depreciation.

EXHIBIT INDEX

Exhibit No.	Description
3.1	Amended and Restated Certificate of Incorporation of the Company (incorporated herein by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on May 29, 2013
3.2	Amended and Restated By-laws of the Company (incorporated herein by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed on May 29, 2013
4.1	Specimen certificate representing Common Stock (incorporated herein by reference to Exhibit 4.1 to the Company's Registration Statement on Form S-1 (File No. 33-98542), as amended)
10.1*	Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2010)
10.2*	First Amendment to Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated as of May 28, 2010)
10.3*	Second Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated as of June 2, 2011)
10.4*	Third Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K dated as of June 2, 2011)
10.5*	Fourth Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated as of May 31, 2012)
10.6*	Fifth Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2013)
10.7*	Sixth Amendment to the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on May 29, 2013)
10.8*	Form of Global Stock Option Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.9*	Form of Restricted Stock Unit Agreement For Non-Employee Directors under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.10*	Form of Global Restricted Stock Unit Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (Performance Based Awards) (incorporated herein by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.11*	Form of Global Restricted Stock Unit Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (Time Based Awards) (incorporated herein by reference to Exhibit 10.4 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011)
10.12*	Form of Global Restricted Stock Unit Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (Long Term Incentive) (incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2012)
10.13*	Form of Long Term Incentive Agreement under the Citrix Systems, Inc. Amended and Restated 2005 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2009)
10.14*	Amended and Restated 2005 Employee Stock Purchase Plan (incorporated by reference herein to Exhibit 10.14 to the Company's Annual Report on Form 10-K for the year ended December 31, 2011)
10.15*	Amendment to Amended and Restated 2005 Employee Stock Purchase Plan (incorporated by reference herein to Exhibit 10.17 to the Company's Annual Report on Form 10-K for the year ended December 31, 2012)
10.16*†	Citrix Systems, Inc. Executive Bonus Plan
10.17*	Change in Control Agreement dated as of August 4, 2005 by and between the Company and Mark B. Templeton (incorporated by reference herein to Exhibit 10.11 to the Company's Annual Report on Form 10-K for the year ended December 31, 2010)

Exhibit No.	Description
10.18*	Form of Change in Control Agreement by and between the Company and each of David J. Henshall, David R. Freidman, Brett M. Caine, Alvaro J. Monserrat and John Gordon Payne (incorporated by reference herein to Exhibit 10.12 to the Company's Annual Report on Form 10-K for the year ended December 31, 2010)
10.19*†	Form of First Amendment to Change of Control Agreement (Chief Executive Officer) between the Company and Mark Templeton
10.20*†	Form of First Amendment to Change of Control Agreement between the Company and each of Brett M. Caine, David J. Henshall, David R. Friedman and Alvaro J. Monserrat (together with Mark Templeton, the “Executive Officers”)
10.21*	Form of Amendment to Change in Control Agreements by and between the Company and each of David J. Henshall, David R. Freidman, Brett M. Caine and Alvaro J. Monserrat (incorporated herein by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2011)
10.22*	Form of Indemnification Agreement by and between the Company and each of its Directors and Executive Officers (incorporated herein by reference to Exhibit 10.4 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2011)
10.23*	Form of Change in Control Agreement by and between the Company and each of Catherine Courage, Steve Daheb, Sudhakar Ramakrishna and Christopher Hylen (incorporated by reference herein to Exhibit 10.25 to the Company's Annual Report on Form 10-K for the year ended December 31, 2012)
21.1†	List of Subsidiaries
23.1†	Consent of Independent Registered Public Accounting Firm
24.1	Power of Attorney (included in signature page)
31.1†	Rule 13a-14(a) / 15d-14(a) Certifications
31.2†	Rule 13a-14(a) / 15d-14(a) Certifications
32.1††	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101†	XBRL (eXtensible Business Reporting Language). The following materials from Citrix Systems, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2013 formatted in XBRL: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income (iv) the Consolidated Statements of Equity, (v) the Consolidated Statements of Cash Flows and (vi) notes to consolidated financial statements.

*	Indicates a management contract or a compensatory plan, contract or arrangement.
†	Filed herewith.
††	Furnished herewith.

EX-10.2

Exhibit 10.2

CITRIX SYSTEMS, INC.

EXECUTIVE BONUS PLAN

I. Purpose

The purpose of the Citrix Systems, Inc. Executive Bonus Plan (the “Plan”) is to provide to executive officers of Citrix Systems, Inc. (the “Company”) competitive compensation opportunities that are aligned with and promote the overall financial objectives of the Company and its shareholders. In addition to base salary and long-term equity awards, this will be accomplished through incentives payable in the form of cash bonuses designed to reward executives for the financial and operational success of the Company. This Plan does not govern the Company’s base salary and long-term equity awards compensation practices.

II. Eligibility

From time to time, the Compensation Committee of the Board of Directors (the “Compensation Committee”) may select certain company executives¹ to participate in the Plan (the “Participants”). Individuals may become Participants during a fiscal year (“New Participants”) provided such an individual is: (1) an executive of the Company; (2) recommended for participation by the President & CEO; and (3) approved for participation by the Compensation Committee of the Board of Directors (the “Compensation Committee”).

III. Plan Administration

The Plan will be administered by the President & CEO and the Compensation Committee.

A. President & CEO Responsibilities.

1. Recommend new executives for Plan participation.

2. Develop specific bonus recommendations for all Participants (except the President & CEO) and submit to the Compensation Committee for approval.

3. Propose performance measures, weightings, and performance levels for the Plan, and changes thereto.

4.	Evaluate actual performance against bonus measures and goals.
5.	Communicate Plan parameters and mechanics to Participants.

1 For purposes of this Plan, “company executive”, “executive officer” and “executive” refers to any person who is (a) an officer, as defined in Rule 16a-1(f) promulgated under the Securities Exchange Act of 1934 (as amended), (b) a covered person under Section 162(m) of the Internal Revenue Code or (c) a direct report to the Company’s Chief Executive Officer.

B. Compensation Committee Responsibilities.

1. Approve new Participants.

2. Review target bonus awards, including benchmarking to peer group companies.

3. Review bonus measures, goals, and weightings.

4. Certify achievement of bonus measures.

5. Review and approve the President & CEO’s bonus recommendations for Participants and develop bonus recommendations for the President & CEO.

1

Exhibit 10.2

IV. Bonus Structure

A. Performance Period. This Plan will measure and reward performance on an annual basis (January 1 - December 31). Each Participant shall have a targeted bonus level for each performance period.

B. Eligibility. All Participants as of January 1^st are eligible to participate in this Plan. New Participants will be eligible to participate in this Plan upon the recommendation of the President & CEO and approval by the Compensation Committee. A New Participant’s bonus opportunity will be prorated based on the number of full and partial months remaining in the performance period at the time Plan participation is approved. New Participants approved for the Plan may be eligible to receive a bonus (prorated based on the number of full and partial months remaining in the performance period) for the achievement of individual performance goals, as recommended by the President & CEO and approved by the Compensation Committee.

C. Performance Measures.

1. Financial and Operational Performance Targets. For all Participants, bonus awards are, to the extent determined by the Compensation Committee, tied to the achievement of financial or operational performance targets (“Targets”), including, without limitation, the following: (a) operating margin, gross margin, contribution margin or profit margin; (b) earnings per share or pro forma earnings per share; (c) revenue (including product revenue and division revenue); (d) bookings (including product bookings and division bookings); (e) expenses or operating expenses; (f) completion of number of years of service with the Company; (g) net income or operating income; (h) stock price increase; (i) performance relative to peers; (j) divisional or operating segment financial and operating performance; (k) total return on shares of common stock relative to increase in appropriate stock index selected by the

Compensation Committee; (l) customer satisfaction indicators; (m) cash flow; (n) pre-tax profit; (o) growth or growth rate with respect to any of the foregoing measures; (p) attainment of strategic and operational objectives; (q) other financial measures determined by the Compensation Committee; (r) other performance measures determined by the Compensation Committee; or (s) any combination or subset of the foregoing.

The Compensation Committee may appropriately adjust any evaluation of performance under any selected performance goal to exclude any of the following events that occurs during a performance period: (i) the amortization of intangible assets, (ii) write-offs of in-process research and development, (iii) charges associated with the expensing of equity-based compensation, (iv) asset write-downs or impairment, (v) litigation or claim judgments or settlements, (vi) the effect of changes in tax law, accounting principles or other such laws or provisions affecting reported results, (vii) accruals for reorganization and restructuring programs, (viii) any extraordinary non-recurring items including those described in Accounting Principles Board Opinion No. 30 and/or in management’s discussion and analysis of financial condition and results of operations appearing in the Company’s annual report to stockholders for the applicable year, and (ix) any other extraordinary items adjusted from the Company’s U.S. GAAP results in the Compensation Committee’s discretion.

Targets, to the extent determined by the Compensation Committee, may be assigned weightings. In each performance period, the Compensation Committee shall establish Targets and their associated weightings for each Participant. Targets and their associated weightings will be reviewed periodically throughout the performance period to ensure continued alignment with the Company’s business strategy and objectives. Upon the recommendation of the President & CEO and approval of the Compensation Committee, Targets and their associated weightings may be adjusted at such time to reflect changes in business priorities.

2. Individual Goals. The Compensation Committee may determine to make the achievement of individual performance goals a weighted component of the bonus awards for certain Participants. The achievement of the individual performance goals component by such Participants will be determined by the President & CEO or a direct report of the President & CEO to whom the President & CEO has delegated such authority.

3. Minimum Performance Requirement. Bonus awards are subject to minimum performance requirements, or thresholds, established by the Compensation Committee from time to time, before any bonus award may be earned.

2

Exhibit 10.2

D. Bonus Levels. From time to time, the Compensation Committee shall establish for each Participant target bonus levels, expressed as a percentage of each Participant’s base salary, and based on competitive practice and Citrix’s compensation philosophy. In the event of the over-achievement by the Company or a Participant of the Targets, for each component category, bonus awards may be adjusted upwards but capped at a maximum target bonus award, expressed as a percentage of each Participant’s base salary. In the event of the under-achievement by the Company or a Participant of the Targets, for each financial component category, bonus awards may be adjusted downwards from the Participant’s target bonus award. The percentage increases or decreases, as the case may be, for each Participant and for each component shall be established by the Compensation Committee at the same time as the Compensation Committee establishes the Targets and their associated weightings.

E. Bonus Determination. The President & CEO will be responsible for evaluating actual performance against the Targets and the individual performance goals and determining the bonus award earned. Written documentation supporting the President & CEO’s evaluation of actual performance and calculation of bonus awards will be submitted to the Compensation Committee for review. The Compensation Committee will make all final bonus award determinations.

F. Bonus Payout. Subject to approval by the Compensation Committee, all bonus awards will be paid in cash as soon as practicable following the conclusion of the fiscal year to which the award relates but only after the Compensation Committee’s determination of the bonus awards. In its sole discretion, the Compensation Committee may provide for partial payments of bonus awards during a performance period.

V. Miscellaneous Provisions

A. This Plan is effective as of January 1, 2007 and will continue until the Compensation Committee and/or Board of Directors terminates or amends the Plan. The Compensation Committee and/or Board of Directors retain the right to amend, alter or terminate this Plan at any time. The President & CEO and the Compensation Committee retain the right to establish and amend the base salary and long-term equity awards compensation of the Company’s executives and employees. The Compensation Committee and/or Board of Directors retain the right to make discretionary bonus awards or to amend or alter any Target or their associated weightings or any individual performance goal at any time.

B. All decisions made by the Compensation Committee and/or Board of Directors regarding administration and interpretation of the Plan shall be final and binding on all persons, including the Company and Participants.

C. Nothing contained in this document shall be deemed to alter the relationship between the Company and a Participant, or the contractual relationship between a Participant and the Company if there is a written contract regarding such relationship. Furthermore, nothing contained in this document shall be construed to constitute a contract of employment between the Company and a Participant. The Company and each of the Participants continue to have the right to terminate the employment or service relationship at any time for any reason, except as provided in a written contract.

3

EX-10.23

Exhibit 10.23

FORM OF FIRST AMENDMENT

TO

CHANGE IN CONTROL AGREEMENT

(Chief Executive Officer)

A. The Change in Control Agreement (the “Agreement”) dated as of August 4, 2005 by and between Citrix Systems, Inc. (the “Company”) and Mark B. Templeton (the “Executive”) is amended as follows:

1.Section 4(e) of the Agreement is hereby amended by deleting said section in its entirety and substituting the following in lieu thereof:

“(e)    Notwithstanding anything to the contrary in any applicable option agreement or stock-based award agreement, upon a Change of Control, all outstanding stock options and other stock-based awards granted to the Executive by the Company, including but not limited to restricted stock and restricted stock units, shall immediately accelerate and become exercisable or non-forfeitable as of the effective date of such Change of Control; provided, however, with respect to stock-based awards with performance vesting with respect to which the number of options, units or shares, as the case may be, has not been determined, the performance criteria set forth in the award agreement will be deemed to be 100 percent attained, and 100 percent of the base number of such options, units or shares, as the case may be, shall become fully vested and non-forfeitable. The Executive shall also be entitled to any other rights and benefits with respect to stock-based awards to the extent and upon the terms provided in the award agreement, plan or other instrument attendant thereto pursuant to which such stock-based awards were granted.”

2.Section 5 of this Agreement is hereby amended by deleting said section in its entirety and substituting therefor the following:

“5.    Additional Limitation.

(a)    Anything in this Agreement to the contrary notwithstanding, in the event that any compensation, payment or distribution by the Company to or for the benefit of the Executive, whether paid or payable or distributed or distributable pursuant to the terms of this Agreement or otherwise (the “Severance Payments”), would be subject to the excise tax imposed by Section 4999 of the Internal Revenue Code of 1986, as amended (the “Code”), the following provisions shall apply:

(i)    If the Severance Payments, reduced by the sum of (A) the Excise Tax and (B) the total of the federal, state, and local income and employment taxes payable by the Executive on the amount of the Severance Payments which are in excess of the Threshold Amount, are greater than or equal to the Threshold Amount, the Executive shall be entitled to the full benefits payable under this Agreement.

(ii)    If the Threshold Amount is less than (x) the Severance Payments, but greater than (y) the Severance Payments reduced by the sum of (A) the Excise Tax and (B) the total of the federal, state, and local income and employment taxes on the amount of the Severance Payments which are in excess of the Threshold Amount, then the benefits payable under this Agreement shall be reduced (but not below zero) to the extent necessary so that the sum

1

of all Severance Payments shall not exceed the Threshold Amount. In such event, the Severance Payments shall be reduced in the following order: (1) cash payments not subject to Section 409A of the Code; (2) cash payments subject to Section 409A of the Code; (3) equity-based payments and acceleration; and (4) non-cash forms of benefits. To the extent any payment is to be made over time, then the payments shall be reduced in reverse chronological order.

(b)    For the purposes of this Section 5, “Threshold Amount” shall mean three times the Executive’s ‘base amount’ within the meaning of Section 280G(b)(3) of the Code and the regulations promulgated thereunder less one dollar ($1.00); and ‘Excise Tax” shall mean the excise tax imposed by Section 4999 of the Code, and any interest or penalties incurred by the Executive with respect to such excise tax.

(c)    The determination as to which of the alternative provisions of Section 5(a) above shall apply to the Executive shall be made by a nationally recognized accounting firm selected by the Company (the “Accounting Firm”), which shall provide detailed supporting calculations both to the Company and the Executive within 15 business days of the Date of Termination, if applicable, or at such earlier time as is reasonably requested by the Company or the Executive. For purposes of determining which of the alternative provisions of Section 5(a) above shall apply, the Executive shall be deemed to pay federal income taxes at the highest marginal rate of federal income taxation applicable to individuals for the calendar year in which the determination is to be made, and state and local income taxes at the highest marginal rates of individual taxation in the state and locality of the Executive’s residence on the Date of Termination, net of the maximum reduction in federal income taxes which could be obtained from deduction of such state and local taxes. Any determination by the Accounting Firm shall be binding upon the Company and the Executive.”

3.The Agreement is further amended by adding the following Section 20 at the end thereof:

“20.    Section 409A.

(a)    Anything in this Agreement to the contrary notwithstanding, if at the time of the Executive’s ‘separation from service’ within the meaning of Section 409A of the Code, the Company determines that the Executive is a ‘specified employee’ within the meaning of Section 409A(a)(2)(B)(i) of the Code, then to the extent any payment or benefit that the Executive becomes entitled to under this Agreement would be considered deferred compensation subject to the 20 percent additional tax imposed pursuant to Section 409A(a) of the Code as a result of the application of Section 409A(a)(2)(B)(i) of the Code, such payment shall not be payable and such benefit shall not be provided until the date that is the earlier of (A) six months and one day after the Executive’s separation from service, or (B) the Executive’s death; provided, however, that in the case of benefits, the Executive may elect to pay for the costs of such benefits during such delay period in exchange for reimbursement of such costs after the end of the delay period. Any such delayed cash payment shall earn interest at an annual rate equal to the applicable federal short-term rate published by the Internal Revenue Service for the month in which the date of separation from service occurs, from such date of separation from service until the payment.

(b)    The parties intend that this Agreement will be administered in accordance with Section 409A of the Code. To the extent that any provision of this Agreement is ambiguous as to its compliance with Section 409A of the Code, the provision shall be read in such a manner so that all

2

payments hereunder comply with Section 409A of the Code. The parties agree that this Agreement may be amended, as reasonably requested by either party, and as may be necessary to fully comply with Section 409A of the Code and all related rules and regulations in order to preserve the payments and benefits provided hereunder without additional cost to either party.

(c)    The determination of whether and when a separation from service has occurred shall be made in accordance with the presumptions set forth in Treasury Regulation Section 1.409A-1(h).

(d)    The Company makes no representation or warranty and shall have no liability to the Executive or any other person if any provisions of this Agreement are determined to constitute deferred compensation subject to Section 409A of the Code but do not satisfy an exemption from, or the conditions of, such Section.”

B. This First Amendment shall become effective November [__], 2008.

C.Except as amended herein, the Agreement is confirmed in all other respects.

IN WITNESS WHEREOF, this First Amendment has been executed as a sealed instrument on behalf of the Company by its duly authorized officer and by the Executive this ___ day of November, 2008.

CITRIX SYSTEMS, INC.

By:____________________________________

Name:

Title:

_______________________________________    

    Mark B. Templeton

3

EX-10.24

Exhibit 10.24

FORM OF FIRST AMENDMENT

TO

CHANGE IN CONTROL AGREEMENT

A. The Change in Control Agreement (the “Agreement”) dated as of ___________, 2008 by and between Citrix Systems, Inc. (the “Company”) and _______________ (the “Executive”) is amended as follows:

1.Section 4(a) of the Agreement is hereby amended by deleting the reference to “one times” and replacing it with “one and a half times.”

2.Section 4(e) of the Agreement is hereby amended by deleting said section in its entirety and substituting the following in lieu thereof:

“(e)    Notwithstanding anything to the contrary in any applicable option agreement or stock-based award agreement, upon a Terminating Event, all outstanding stock options and other stock-based awards granted to the Executive by the Company, including but not limited to restricted stock and restricted stock units, shall immediately accelerate and become exercisable or non-forfeitable as of the effective date of such Terminating Event; provided, however, with respect to stock-based awards with performance vesting with respect to which the number of options, units or shares, as the case may be, has not been determined, the performance criteria set forth in the award agreement will be deemed to be 100 percent attained, and 100 percent of the base number of such options, units or shares, as the case may be, shall become fully vested and non-forfeitable. The Executive shall also be entitled to any other rights and benefits with respect to stock-based awards to the extent and upon the terms provided in the award agreement, plan or other instrument attendant thereto pursuant to which such stock-based awards were granted.”

3.Section 5 of this Agreement is hereby amended by deleting said section in its entirety and substituting therefor the following:

“5.    Additional Limitation.

(a)    Anything in this Agreement to the contrary notwithstanding, in the event that any compensation, payment or distribution by the Company to or for the benefit of the Executive, whether paid or payable or distributed or distributable pursuant to the terms of this Agreement or otherwise (the “Severance Payments”), would be subject to the excise tax imposed by Section 4999 of the Internal Revenue Code of 1986, as amended (the “Code”), the following provisions shall apply:

(i)    If the Severance Payments, reduced by the sum of (A) the Excise Tax and (B) the total of the federal, state, and local income and employment taxes payable by the Executive on the amount of the Severance Payments which are in excess of the Threshold Amount, are greater than or equal to the Threshold Amount, the Executive shall be entitled to the full benefits payable under this Agreement.

(ii)    If the Threshold Amount is less than (x) the Severance Payments, but greater than (y) the Severance Payments reduced by the sum of (A) the Excise Tax and (B) the total of the federal, state, and local income and employment taxes on the amount of the Severance Payments which are in excess of the Threshold Amount, then the benefits payable under this Agreement shall be reduced (but not below zero) to the extent necessary so that the sum of all Severance Payments shall not exceed the Threshold Amount.

(b)    For the purposes of this Section 5, “Threshold Amount” shall mean three times the Executive’s ‘base amount’ within the meaning of Section 280G(b)(3) of the Code and the regulations promulgated thereunder less one dollar ($1.00); and “Excise Tax” shall mean the excise tax imposed by Section 4999 of the Code, and any interest or penalties incurred by the Executive with respect to such excise tax.

(c)    The determination as to which of the alternative provisions of Section 5(a) above shall apply to the Executive shall be made by a nationally recognized accounting firm

1

Exhibit 10.24

selected by the Company (the “Accounting Firm”), which shall provide detailed supporting calculations both to the Company and the Executive within 15 business days of the Date of Termination, if applicable, or at such earlier time as is reasonably requested by the Company or the Executive. For purposes of determining which of the alternative provisions of Section 5(a) above shall apply, the Executive shall be deemed to pay federal income taxes at the highest marginal rate of federal income taxation applicable to individuals for the calendar year in which the determination is to be made, and state and local income taxes at the highest marginal rates of individual taxation in the state and locality of the Executive’s residence on the Date of Termination, net of the maximum reduction in federal income taxes which could be obtained from deduction of such state and local taxes. Any determination by the Accounting Firm shall be binding upon the Company and the Executive.”

4.The Agreement is further amended by adding the following Section 20 at the end thereof:

“20.    Section 409A.

(a)    Anything in this Agreement to the contrary notwithstanding, if at the time of the Executive’s ‘separation from service’ within the meaning of Section 409A of the Code, the Company determines that the Executive is a ‘specified employee’ within the meaning of Section 409A(a)(2)(B)(i) of the Code, then to the extent any payment or benefit that the Executive becomes entitled to under this Agreement would be considered deferred compensation subject to the 20 percent additional tax imposed pursuant to Section 409A(a) of the Code as a result of the application of Section 409A(a)(2)(B)(i) of the Code, such payment shall not be payable and such benefit shall not be provided until the date that is the earlier of (A) six months and one day after the Executive’s separation from service, or (B) the Executive’s death; provided, however, that in the case of benefits, the Executive may elect to pay for the costs of such benefits during such delay period in exchange for reimbursement of such costs after the end of the delay period. Any such delayed cash payment shall earn interest at an annual rate equal to the applicable federal short-term rate published by the Internal Revenue Service for the month in which the date of separation from service occurs, from such date of separation from service until the payment.

(b)    The parties intend that this Agreement will be administered in accordance with Section 409A of the Code. To the extent that any provision of this Agreement is ambiguous as to its compliance with Section 409A of the Code, the provision shall be read in such a manner so that all payments hereunder comply with Section 409A of the Code. The parties agree that this Agreement may be amended, as reasonably requested by either party, and as may be necessary to fully comply with Section 409A of the Code and all related rules and regulations in order to preserve the payments and benefits provided hereunder without additional cost to either party.

(c)    The determination of whether and when a separation from service has occurred shall be made in accordance with the presumptions set forth in Treasury Regulation Section 1.409A-1(h).

(d)    The Company makes no representation or warranty and shall have no liability to the Executive or any other person if any provisions of this Agreement are determined to constitute deferred compensation subject to Section 409A of the Code but do not satisfy an exemption from, or the conditions of, such Section.”

B. This First Amendment shall become effective November __, 2008.

C. Except as amended herein, the Agreement is confirmed in all other respects.

2

Exhibit 10.24

IN WITNESS WHEREOF, this First Amendment has been executed as a sealed instrument on behalf of the Company by its duly authorized officer and by the Executive this ___ day of November, 2008.

CITRIX SYSTEMS, INC.

By:    ___________________________________________________    

Name:

Title:

______________________________________________

3

EX-21.1

Exhibit 21.1

SUBSIDIARIES

	Subsidiary	Jurisdiction of Incorporation
1	851 West Cypress Creek Road Acquisition LLC	Delaware
2	Apere Enterprise Storage Solutions India Private Limited	India
3	App-DNA Group Limited	United Kingdom
4	App-DNA Limited	United Kingdom
6	App-DNA S.A.R.L.	France
7	App-DNA, Inc.	Nevada
8	Bytemobile (Beijing) Co., Ltd	China
9	Bytemobile China Communication Services Co., Limited	China
10	Bytemobile Europe Ltd	United Kingdom
11	Bytemobile European Development Center MEPE	Greece
12	Bytemobile Hong Kong Ltd	Hong Kong
13	Bytemobile International Corporation	Delaware
14	Bytemobile Solutions Pvt Ltd	India
15	Bytemobile, Inc.	Delaware
16	Byte Squared Limited	United Kingdom
17	Citrix Application Networking, LLC	Delaware
18	Citrix Communications LLC	Delaware
19	Citrix Communications Virginia LLC	Virginia
20	Citrix Development Corp.	Delaware
21	Citrix Gateways, Inc.	Delaware
22	Citrix Holanda B.V.	Netherlands
23	Citrix Offshore Investments, Ltd.	Cayman Islands
24	Citrix Online Audio, LLC	Delaware
25	Citrix Online AUS Pty Ltd.	Australia
26	Citrix Online Conference Services Group, LLC	Delaware
27	Citrix Online Germany GmbH	Germany
28	Citrix Online Holdings GmbH	Switzerland
29	Citrix Online Ireland Limited	Ireland
30	Citrix Online LLC	Delaware
31	Citrix Online Service Provider Group, Inc.	Delaware
32	Citrix Online UK Ltd.	United Kingdom
33	Citrix Overseas Holdings, B.V.	Netherlands
34	Citrix R&D India Private Limited	India
35	Citrix Sistemas de Argentina, S.R.L.	Argentina
36	Citrix Sistemas de Chile Ltda.	Chile
37	Citrix Sistemas de Colombia SAS	Colombia
38	Citrix Sistemas de Mexico, S. de RL de CV	Mexico
39	Citrix Sistemas do Brasil Ltda.	Brazil
40	Citrix Systems Asia Pacific Pty Ltd.	Australia
41	Citrix Systems Australasia R&D Pty, Ltd.	Australia

42	Citrix Systems Belgium S.A.R.L.	Belgium
43	Citrix Systems Canada, Inc.	Canada
44	Citrix Systems Czech Republic SRO	Czech
45	Citrix Systems Denmark ApS	Denmark
46	Citrix Systems Finland Oy	Finland
47	Citrix Systems France SARL	France
48	Citrix Systems GmbH	Switzerland
49	Citrix Systems GmbH	Austria
50	Citrix Systems GmbH	Germany
51	Citrix Systems Hong Kong Limited	Hong Kong
52	Citrix Systems India Private Limited	India
53	Citrix Systems Information Technology (Beijing) Ltd	China
54	Citrix Systems International GmbH	Switzerland
55	Citrix Systems Ireland Ltd	Ireland
56	Citrix Systems Italia S.r.L.	Italy
57	Citrix Systems Japan Kabushiki Kaisha	Japan
58	Citrix Systems Japan R&D KK	Japan
59	Citrix Systems Korea Limited	Korea
60	Citrix Systems Malaysia Sdn Bhd.	Malaysia
61	Citrix Systems Netherlands, B.V.	Netherlands
62	Citrix Systems New Zealand Ltd.	New Zealand
63	Citrix Systems Norway AS	Norway
64	Citrix Systems Overseas Holding GmbH	Switzerland
65	Citrix Systems Poland Sp. Zo.o	Poland
66	Citrix Systems Puerto Rico Corp.	Puerto Rico
67	Citrix Systems Singapore Pte Ltd.	Singapore
68	Citrix Systems Slovakia SRO	Slovakia
69	Citrix Systems South Africa (Pty) Ltd.	South Africa
70	Citrix Systems Spain, SL	Spain
71	Citrix Systems Sweden AB	Sweden
72	Citrix Systems Taiwan Ltd	Taiwan
73	Citrix Systems UK Limited	United Kingdom
74	Netviewer Schweiz AG	Switzerland
75	Peninsula Investment Corp.	Delaware
76	Podio ApS	Denmark
77	Podio Inc.	Delaware
78	Ringcube Software Tech Pvt Ltd.	India
79	ShareFile LLC	Delaware
80	Skytide, Inc.	Delaware
81	Sparus Software SAS	France
82	SQA Technologies Pvt. Ltd.	India
83	Todd Hsu Consulting Inc./Consultants Todd Hsu Inc.	Canada Federal corporation
84	Virtual Computer Inc.	Delaware
85	Zenprise, Inc.	Delaware

EX-23.1

EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1)	Registration Statement No. 333-61520 on Form S-8, dated May 23, 2001
(2)	Registration Statement No. 333-121420 on Form S-8, dated December 17, 2004
(3)	Registration Statement No. 333-125297 on Form S-8, dated May 27, 2005
(4)	Registration Statement No. 333-127991 on Form S-8, dated August 31, 2005
(5)	Registration Statement No. 333-132820 on Form S-8, dated March 29, 2006
(6)	Registration Statement No. 333-135519 on Form S-8, dated June 30, 2006
(7)	Registration Statement No. 333-135521 on Form S-8, dated June 30, 2006
(8)	Registration Statement No. 333-136731 on Form S-8, dated August 18, 2006
(9)	Registration Statement No. 333-147419 on Form S-8, dated November 15, 2007
(10)	Registration Statement No. 333-147421 on Form S-8, dated November 15, 2007
(11)	Registration Statement No. 333-149967 on Form S-8, dated March 28, 2008
(12)	Registration Statement No. 333-156266 on Form S-8, dated December 18, 2008
(13)	Registration Statement No. 333-156267 on Form S-8, dated December 18, 2008
(14)	Registration Statement No. 333-161164 on Form S-8, dated August 7, 2009
(15)	Registration Statement No. 333-165460 on Form S-8, dated March 12, 2010
(16)	Registration Statement No. 333-168688 on Form S-8, dated August 9, 2010
(17)	Registration Statement No. 333-172430 on Form S-8, dated February 25, 2011
(18)	Registration Statement No.333-176148 on Form S-8, dated August 8, 2011
(19)	Registration Statement No.333-179653 on Form S-8, dated February 23, 2012
(20)	Registration Statement No.333-183120 on Form S-8, dated August 7, 2012;
(21)	Registration Statement No. 333-186784 on Form S-8, dated February 21, 2013

of our reports dated February 20, 2014, with respect to the consolidated financial statements and schedule of Citrix Systems, Inc., and the effectiveness of internal control over financial reporting of Citrix Systems, Inc., included in this Annual Report (Form 10-K) of Citrix Systems, Inc. for the year ended December 31, 2013.

/s/ Ernst & Young, LLP

Certified Public Accountants

Boca Raton, Florida

February 20, 2014

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Mark B. Templeton, certify that:

1. I have reviewed this annual report on Form 10-K of Citrix Systems, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

By:	/s/ MARK B. TEMPLETON
	Mark B. Templeton
	President and Chief Executive Officer
	(Principal Executive Officer)

Date: February 20, 2014

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, David J. Henshall, certify that:

1. I have reviewed this annual report on Form 10-K of Citrix Systems, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

By:	/s/ DAVID J. HENSHALL
	David J. Henshall
	Executive Vice President, Chief Operating Officer and Chief Financial Officer
	(Principal Financial Officer)

Date: February 20, 2014

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Citrix Systems, Inc. (the “Company”) on Form 10-K for the period ending December 31, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Mark B. Templeton, Chief Executive Officer of the Company, and David J. Henshall, Executive Vice President, Chief Operating Officer and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to my knowledge, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ MARK B. TEMPLETON
	Mark B. Templeton
	President and Chief Executive Officer
	(Principal Executive Officer)
By:	/s/ DAVID J. HENSHALL
	David J. Henshall
	Executive Vice President, Chief Operating Officer and Chief Financial Officer
	(Principal Financial Officer)

February 20, 2014

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Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 3,300,000	$ 3,800,000
Estimated useful lives of intangible assets	6 years 4 months 18 days	6 years 3 months 15 days
Amount capitalized related to internal use software	62,700,000	51,500,000
Amount expensed related to internal use software	58,600,000	44,500,000	37,200,000
Valuation Allowances and Reserves, Balance	2,100,000	2,600,000
Licensing agreement with subscription bundle, term	1 year
Remeasurement and foreign currency transaction gains (losses)	(4,900,000)	(3,300,000)	4,700,000
Advertising costs	146,500,000	137,500,000	130,800,000
Foreign postretirement benefit plans
Significant Accounting Policies [Line Items]
Termination indemnities	9,200,000	9,800,000
Termination indemnities, compensation expense	$ 3,500,000	$ 1,500,000	$ 1,800,000
Online service agreements
Significant Accounting Policies [Line Items]
Revenue recognition, period for recognition	12 months
Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of intangible assets	3 years
Licensing agreement term	1 year
Minimum | License update
Significant Accounting Policies [Line Items]
Revenue recognition, period for recognition	12 months
Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of intangible assets	7 years
Licensing agreement term	5 years
Maximum | License update
Significant Accounting Policies [Line Items]
Revenue recognition, period for recognition	24 months
Weighted average | Online service agreements
Significant Accounting Policies [Line Items]
Revenue recognition, period for recognition	12 months
Customer concentration risk | Accounts receivable | Ingram Micro
Significant Accounting Policies [Line Items]
Number of customers meeting concentration risk threshold	1	1
Concentration risk percentage	10.00%	11.00%

XML

Employee Stock-Based Compensation and Benefit Plans (Narrative) (Details) (USD $)	12 Months Ended																	3 Months Ended		12 Months Ended					1 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013 plan		Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2013 Defined contribution pension	Dec. 31, 2012 Defined contribution pension	Dec. 31, 2011 Defined contribution pension	Dec. 31, 2013 Employee sock option	Dec. 31, 2012 Employee sock option	Dec. 31, 2011 Employee sock option	Dec. 31, 2012 Employee sock option Minimum	Dec. 31, 2011 Employee sock option Minimum	Dec. 31, 2011 Employee sock option Maximum	Dec. 31, 2013 Employee sock option First anniversary of date of grant	Dec. 31, 2013 Employee sock option Equal monthly installments after first anniversary of date of grant	Mar. 31, 2013 Non-vested stock	Mar. 31, 2012 Non-vested stock	Dec. 31, 2013 Non-vested stock installment	Dec. 31, 2012 Non-vested stock	Dec. 31, 2011 Non-vested stock	Dec. 31, 2013 Non-vested stock Annual vesting on each anniversary	Dec. 31, 2013 Non-vested stock Third anniversary	Mar. 31, 2013 Market and service condition stock units	Mar. 31, 2012 Market and service condition stock units	Dec. 31, 2013 Market and service condition stock units	Dec. 31, 2013 2005 Plan	Dec. 31, 2013 2005 Plan Minimum	Dec. 31, 2013 2005 Plan Maximum	Dec. 31, 2013 2005 ESPP Plan	Dec. 31, 2012 2005 ESPP Plan	Dec. 31, 2011 2005 ESPP Plan	Dec. 31, 2013 2005 ESPP Plan Minimum	Dec. 31, 2013 2005 ESPP Plan Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans offered	2
Shares authorized for issuance under 2005 Equity Incentive Plan																												48,600,000			10,000,000
Ownership percentage of company where incentive stock options must be granted with an exercise price greater than fair market value (more than 10%)																														10.00%
Exercise price of incentive stock options granted to individuals owning 10% or more of the Company's common stock, as a percentage of fair market value of common stock on the date of grant																													110.00%
Shares reserved for issuance under the 2005 Equity Incentive Plan																												26,960,367
Shares available for grant under the 2005 Equity Incentive Plan																												16,605,208
Employee Stock Purchase Plan, payment period																															6 months
Employee Stock Purchase Plan, Option to Purchase Shares Through Payroll Deduction, Payroll Deduction Amount Per Pay Period Per Employee, as a Percentage of Base Pay																																		1.00%	10.00%
Employee Stock Purchase Plan, maximum number of shares per period that employees can purchase																															12,000
Employee Stock Purchase Plan, purchase price as a percentage of fair market value																															85.00%
Employee Stock Purchase Plan, employee disqualification, ownership percent of outstanding stock																															5.00%
Employee Stock Purchase Plan, total shares issued under plan																															2,991,834
Stock-based compensation	$ 183,941,000	[1]	$ 149,940,000	[1]	$ 92,909,000	[1]				$ 48,900,000	$ 56,400,000	$ 48,200,000								$ 130,200,000	$ 89,500,000	$ 40,000,000									$ 4,900,000	$ 4,000,000	$ 3,500,000
Stock-based compensation related deferred tax assets	57,100,000		46,700,000		28,400,000
Tax benefit from compensation expense	55,700,000		65,800,000		67,900,000
Award expiration period										5 years
Stock option vesting period										3 years
Award vesting percentage																33.30%	2.78%						33.33%	100.00%
Options assumed from acquisitions, award vesting period										3 years
Total unrecognized compensation cost related to stock-based compensation										29,700,000										237,800,000
The total intrinsic value of options exercised										77,700,000	131,400,000	169,200,000
The weighted average fair value per share of stock options granted (in dollars per share)	$ 56.97		$ 23.95		$ 29.91
Total unrecognized compensation cost recognition period (in years)										1 year 2 months 18 days										1 year 11 months 16 days
Non-vested stock unit awards granted to senior level employees																				2,765,386					399,029	418,809
Period to determine actual stock grant following end of performance period																											60 days
Performance period																											3 years
Maximum percentage of market and service condition stock units that will ultimately vest																											200.00%
Minimum overperformance percentage against benchmark index return for maximum stock issuance, percentage																											40.00%
Maximum underperformance against benchmark index return before company discontinues issuance of stock, percentage (more than 20%)																											20.00%
Percent of award issued if return is negative but benchmark index is met																											75.00%
Number of shares represented by each award upon vesting																				1
Expected volatility rate, calculation basis, period										3 years 4 months 6 days			3 years 10 months 28 days	3 years 3 months 7 days	3 years 10 months 28 days					2 years 9 months
Granted (in dollars per share)																		$ 89.93	$ 89.95	$ 71.84
Share-based compensation award, stock vesting period, monthly installments																				12
Fair value of awards released																				95,400,000	50,300,000	21,300,000
401(k) Benefit Plan [Abstract]
Maximum annual contribution per employee (as a percent)	60.00%
Contribution per dollar of employee contribution	50.00%
Matching percent	3.00%
Employer contributions							$ 12,700,000	$ 10,500,000	$ 9,100,000
Employer contributions, vesting period	4 years
Employer contributions, annual vesting rate	25.00%

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

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Acquisitions (Subsequent Events) (Details) (Subsequent Event [Member], Framehawk, Inc. [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Jan. 08, 2014
Subsequent Event [Member] | Framehawk, Inc. [Member]
Subsequent Event [Line Items]
Preliminary consideration in business acquisition	$ 27.9
Cash acquired from the acquisition	0.3
Estimated acquisition transaction costs	$ 0.1

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Segment Information (Net Revenues And Profit By Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Net revenues	$ 802,420	$ 712,731	$ 730,384	$ 672,899	$ 739,996	$ 641,422	$ 615,210	$ 589,495	$ 2,918,434		$ 2,586,123		$ 2,206,392
Segment profit	160,854	87,367	75,888	56,608	145,421	82,415	82,192	80,750	380,717		390,778		416,966
Amortization of intangible assets									(139,541)	[1]	(114,574)	[1]	(71,131)	[1]
Restructuring									0	[1]	0	[1]	(24)	[1]
Net interest and other income									7,173	[1]	19,451	[1]	13,531	[1]
Stock-based compensation									(183,941)	[1]	(149,940)	[1]	(92,909)	[1]
Consolidated income before income taxes									387,890		410,229		430,497
Enterprise and Service Provider division
Segment Reporting Information [Line Items]
Net revenues									2,335,562		2,074,800		1,778,646
Segment profit									588,138		562,794		504,883
SaaS division
Segment Reporting Information [Line Items]
Net revenues									582,872		511,323		427,746
Segment profit									$ 116,061		$ 92,498		$ 76,147

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

XML

Employee Stock-Based Compensation and Benefit Plans (Detail of the Total Stock-Based Compensation Recognized by Income Statement Classification) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 183,941	[1]	$ 149,940	[1]	$ 92,909	[1]
Cost of services revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	2,540		2,111		1,584
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	63,448		54,616		31,763
Sales, marketing and services
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	65,549		51,519		31,354
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 52,404		$ 41,694		$ 28,208

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

XML

Net Income Per Share Attributable To Citrix Systems, Inc. Stockholders (Net Income Per Share Basic And Diluted) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator:
Net income attributable to Citrix Systems, Inc. stockholders	$ 138,644	$ 76,730	$ 64,461	$ 59,688	$ 114,029	$ 78,245	$ 92,006	$ 68,267	$ 339,523	$ 352,547	$ 356,322
Denominator:
Denominator for basic earnings per share - weighted-average shares outstanding									186,672	186,722	187,315
Effect of dilutive employee stock awards:
Employee stock awards									1,573	2,407	3,326
Denominator for diluted earnings per share - weighted-average shares outstanding									188,245	189,129	190,641
Net income per share attributable to Citrix Systems, Inc. stockholders - basic (in dollars per share)	$ 0.75	$ 0.41	$ 0.34	$ 0.32	$ 0.61	$ 0.42	$ 0.49	$ 0.37	$ 1.82	$ 1.89	$ 1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted (in dollars per share)	$ 0.74	$ 0.41	$ 0.34	$ 0.32	$ 0.60	$ 0.41	$ 0.49	$ 0.36	$ 1.80	$ 1.86	$ 1.87
Anti-dilutive weighted-average shares									3,647	3,464	2,576

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Acquisitions (Identifiable Intangible Assets Acquired) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Zenprise
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	$ 69,200
Zenprise | Trade names
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	2,400
Finite-lived intangible assets acquired, Asset Life	3 years
Zenprise | Non-compete agreements
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	700
Finite-lived intangible assets acquired, Asset Life	1 year
Zenprise | Customer relationships
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	18,300
Finite-lived intangible assets acquired, Asset Life	7 years
Zenprise | Core and product technologies
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	47,800
Finite-lived intangible assets acquired, Asset Life	6 years
Zenprise | In-process R&D
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	0	[1]
2013 Other Acquisitions
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	11,300
2013 Other Acquisitions | Trade names
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	0
2013 Other Acquisitions | Non-compete agreements
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	0
2013 Other Acquisitions | Customer relationships
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	3,600
Finite-lived intangible assets acquired, Asset Life	6 years
2013 Other Acquisitions | Core and product technologies
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	6,300
Finite-lived intangible assets acquired, Asset Life	5 years
2013 Other Acquisitions | In-process R&D
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	1,400	[1]
ByteMobile
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	248,900
ByteMobile | Trade names
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	6,000
Finite-lived intangible assets acquired, Asset Life	6 years
ByteMobile | Customer relationships
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	141,500
Finite-lived intangible assets acquired, Asset Life	9 years
ByteMobile | Core and product technologies
Business Acquisition [Line Items]
Finite-lived Intangible assets acquired	$ 101,400
Finite-lived intangible assets acquired, Asset Life	4 years 9 months 18 days

[1] Capitalized acquired in-process R&D costs will remain capitalized until such time as the projects are complete, at which point they will be amortized, or they will be written off when it is probable the projects will not be completed.

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

United States and Foreign Components of Income Before Income Taxes

The United States and foreign components of income before income taxes are as follows:

	2013		2012		2011
	(In thousands)
United States	$	142,085	$	200,802	$	176,824
Foreign	245,805		209,427		253,673
Total	$	387,890	$	410,229	$	430,497

Components of the Provision for Income Taxes

The components of the provision for income taxes are as follows:

	2013			2012			2011
	(In thousands)
Current:
Federal	$	51,389		$	81,019		$	50,022
Foreign	37,221			30,059			29,169
State	11,605			17,395			11,905
Total current	100,215			128,473			91,096
Deferred:
Federal	(34,897		)	(64,960		)	(8,631		)
Foreign	(8,413		)	1,409			(4,792		)
State	(8,538		)	(7,240		)	(2,806		)
Total deferred	(51,848		)	(70,791		)	(16,229		)
Total provision	$	48,367		$	57,682		$	74,867

Components of Deferred Tax Assets and Liabilities

The significant components of the Company’s deferred tax assets and liabilities consisted of the following:

	December 31,
	2013			2012
	(In thousands)
Deferred tax assets:
Accruals and reserves	$	25,556		$	36,128
Deferred revenue	55,688			41,820
Tax credits	60,519			43,657
Net operating losses	103,329			89,856
Other	10,537			8,452
Stock based compensation	72,074			54,852
Depreciation and amortization	1,675			—
Valuation allowance	(26,465		)	(18,185		)
Total deferred tax assets	302,913			256,580
Deferred tax liabilities:
Depreciation and amortization	—			(40,159		)
Acquired technology	(136,258		)	(140,017		)
Prepaid expenses	(16,258		)	(17,093		)
Total deferred tax liabilities	(152,516		)	(197,269		)
Total net deferred tax assets	$	150,397		$	59,311

The following table presents the breakdown between current and non-current net deferred tax assets:

	December 31,
	2013			2012
	(In thousands)
Deferred tax assets - current	$	48,470		$	36,846
Deferred tax liabilities - current	(364		)	(876		)
Deferred tax assets- non current	115,418			43,097
Deferred tax liabilities - non current	(13,127		)	(19,756		)
Total net deferred tax assets	$	150,397		$	59,311

Reconciliation of The Company's Effective Tax Rate to The Statutory Federal Rate

A reconciliation of the Company’s effective tax rate to the statutory federal rate is as follows:

	Year Ended December 31,
	2013		2012		2011
Federal statutory taxes	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	1.2		1.9		1.7
Foreign operations	(14.8	)	(10.2	)	(14.5	)
Permanent differences	(1.1	)	(2.0	)	1.2
Tax credits	(10.9	)	(4.7	)	(7.1	)
Stock option compensation	0.4		0.1		0.1
Change in accruals for uncertain tax positions	3.3		(5.3	)	1.4
Other	(0.6	)	(0.7	)	(0.4	)
	12.5	%	14.1	%	17.4	%

Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2013 and 2012 is as follows (in thousands):

Balance at January 1, 2012	$	79,199
Additions based on tax positions related to the current year	2,459
Additions for tax positions of prior years	9,558
Reductions related to the expiration of statutes of limitations	(33,594		)
Settlements	(13,718		)
Balance at December 31, 2012	43,904
Additions based on tax positions related to the current year	13,694
Additions for tax positions of prior years	10,611
Reductions related to the expiration of statutes of limitations	(2,116		)
Settlements	(2,301		)
Balance at December 31, 2013	$	63,792

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Comprehensive Income (Changes in Accumulated Other Comprehensive Loss by Component) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	$ (7,705)
Other comprehensive income before reclassifications	9,930
Amounts reclassified from Accumulated other comprehensive income (loss)	2,726
Other comprehensive income (loss)	12,656	3,856	(13,584)
Balance at December 31, 2013	4,951	(7,705)
Foreign currency
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(3,024)
Other comprehensive income before reclassifications	8,482
Amounts reclassified from Accumulated other comprehensive income (loss)	0
Other comprehensive income (loss)	8,482
Balance at December 31, 2013	5,458
Unrealized gain (loss) on available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	2,426
Other comprehensive income before reclassifications	(985)
Amounts reclassified from Accumulated other comprehensive income (loss)	(203)
Other comprehensive income (loss)	(1,188)
Balance at December 31, 2013	1,238
Unrealized gain (loss) on derivative instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(10)
Other comprehensive income before reclassifications	(67)
Amounts reclassified from Accumulated other comprehensive income (loss)	2,929
Other comprehensive income (loss)	2,862
Balance at December 31, 2013	2,852
Other comprehensive gain (loss) on pension liability
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(7,097)
Other comprehensive income before reclassifications	2,500
Amounts reclassified from Accumulated other comprehensive income (loss)	0
Other comprehensive income (loss)	2,500
Balance at December 31, 2013	$ (4,597)

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Segment Information (Revenues By Geographic Location) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 802,420	$ 712,731	$ 730,384	$ 672,899	$ 739,996	$ 641,422	$ 615,210	$ 589,495	$ 2,918,434	$ 2,586,123	$ 2,206,392
Enterprise and Service Provider division
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									2,335,562	2,074,800	1,778,646
Enterprise and Service Provider division | Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									1,263,673	1,106,801	993,062
Enterprise and Service Provider division | EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									785,862	691,111	576,953
Enterprise and Service Provider division | Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									286,027	276,888	208,631
SaaS division
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									582,872	511,323	427,746
SaaS division | Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									488,307	433,263	367,260
SaaS division | EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									73,529	63,484	50,711
SaaS division | Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									$ 21,036	$ 14,576	$ 9,775

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Employee Stock-Based Compensation and Benefit Plans (Assumptions Used To Value Option Grants) (Details)	12 Months Ended							1 Months Ended		12 Months Ended	1 Months Ended
	Dec. 31, 2013 Employee sock option	Dec. 31, 2012 Employee sock option	Dec. 31, 2011 Employee sock option	Dec. 31, 2012 Employee sock option Minimum	Dec. 31, 2011 Employee sock option Minimum	Dec. 31, 2012 Employee sock option Maximum	Dec. 31, 2011 Employee sock option Maximum	Mar. 31, 2013 Non-vested stock	Mar. 31, 2012 Non-vested stock	Dec. 31, 2013 Non-vested stock	Mar. 31, 2013 Non-vested stock Minimum	Mar. 31, 2012 Non-vested stock Minimum	Mar. 31, 2013 Non-vested stock Maximum	Mar. 31, 2012 Non-vested stock Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected volatility factor	39.00%			38.00%	38.00%	43.00%	50.00%				16.00%	21.00%	42.00%	39.00%
Approximate risk free interest rate	0.40%			0.50%	0.60%	0.70%	1.10%	0.33%	0.47%
Expected term (in years)	3 years 4 months 6 days			3 years 10 months 28 days	3 years 3 months 7 days		3 years 10 months 28 days			2 years 9 months
Expected dividend yield	0.00%	0.00%	0.00%					0.00%	0.00%

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Derivative Financial Instruments (Schedule Of Effect Of Derivative Instruments On Financial Performance) (Details) (Cash flow hedging, Foreign currency, Forward contracts, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Derivatives Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain Recognized in Other Comprehensive Income (Loss) (Effective Portion)	$ 2,862	$ 5,164
Derivatives Designated as Hedging Instruments | Operating expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from Accumulated Other Comprehensive Income (Loss) (Effective Portion)	(2,929)	(5,817)
Derivatives Not Designated as Hedging Instruments | Other (expense) income, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ 3,138	$ (1,341)

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Quarterly Financial Information (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data [Abstract]
Net revenues	$ 802,420,000	$ 712,731,000	$ 730,384,000	$ 672,899,000	$ 739,996,000	$ 641,422,000	$ 615,210,000	$ 589,495,000	$ 2,918,434,000	$ 2,586,123,000	$ 2,206,392,000
Gross margin	665,712,000	588,798,000	603,144,000	557,985,000	622,628,000	535,354,000	520,852,000	503,152,000	2,415,639,000	2,181,986,000	1,912,793,000
Income from operations	160,854,000	87,367,000	75,888,000	56,608,000	145,421,000	82,415,000	82,192,000	80,750,000	380,717,000	390,778,000	416,966,000
Net income attributable to Citrix Systems, Inc.	138,644,000	76,730,000	64,461,000	59,688,000	114,029,000	78,245,000	92,006,000	68,267,000	339,523,000	352,547,000	356,322,000
Net income per share attributable to Citrix Systems, Inc. stockholders - basic (in dollars per share)	$ 0.75	$ 0.41	$ 0.34	$ 0.32	$ 0.61	$ 0.42	$ 0.49	$ 0.37	$ 1.82	$ 1.89	$ 1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted (in dollars per share)	$ 0.74	$ 0.41	$ 0.34	$ 0.32	$ 0.60	$ 0.41	$ 0.49	$ 0.36	$ 1.80	$ 1.86	$ 1.87
ctxs-adjustment to excess tax benefit from stock based compensation									17,300,000
Net cash provided by operating activities				266,600,000					928,343,000	818,527,000	679,122,000
Net cash used in financing activities				$ 28,900,000					$ 352,281,000	$ 149,782,000	$ 292,614,000

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Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) In Thousands, unless otherwise specified	Dec. 31, 2013 AUD	Dec. 31, 2013 CAD	Dec. 31, 2013 CHF	Dec. 31, 2013 CNY	Dec. 31, 2013 DKK	Dec. 31, 2013 EUR (€)	Dec. 31, 2013 GBP (£)	Dec. 31, 2013 HKD	Dec. 31, 2013 INR	Dec. 31, 2013 JPY (¥)	Dec. 31, 2013 NZD	Dec. 31, 2013 SGD
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	8,012	6,714	19,741	81,250	1,500	€ 27,820	£ 34,475	51,063	1,201,622	¥ 169,004	300	12,600

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Segment Information (Identifiable Assets By Segment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Identifiable assets	$ 5,212,249	$ 4,796,402
Long-lived assets	338,996	303,294
United States
Segment Reporting Information [Line Items]
Long-lived assets	258,114	231,812
United Kingdom
Segment Reporting Information [Line Items]
Long-lived assets	29,382	30,633
Other countries
Segment Reporting Information [Line Items]
Long-lived assets	51,500	40,849
Enterprise and Service Provider division
Segment Reporting Information [Line Items]
Identifiable assets	4,662,724	4,246,292
SaaS division
Segment Reporting Information [Line Items]
Identifiable assets	$ 549,525	$ 550,110

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Significant Accounting Policies (Policy)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Consolidation Policy

Consolidation Policy

The consolidated financial statements of the Company include the accounts of its wholly-owned subsidiaries in the Americas, Europe, the Middle East and Africa (“EMEA”), Asia-Pacific and the SaaS division. All significant transactions and balances between the Company and its subsidiaries have been eliminated in consolidation.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents at December 31, 2013 and 2012 include marketable securities, which are primarily money market funds, commercial paper, agency, and government securities, municipal securities and corporate securities with initial or remaining contractual maturities when purchased of three months or less.

Investments

Investments

Short-term and long-term investments at December 31, 2013 and 2012 primarily consist of agency securities, corporate securities, municipal securities and government securities. Investments classified as available-for-sale are stated at fair value with unrealized gains and losses, net of taxes, reported in Accumulated other comprehensive income (loss). The Company classifies its available-for-sale investments as current and non-current based on their actual remaining time to maturity. The Company does not recognize changes in the fair value of its available-for-sale investments in income unless a decline in value is considered other-than-temporary in accordance with the authoritative guidance.

The Company’s investment policy is designed to limit exposure to any one issuer depending on credit quality. The Company uses information provided by third parties to adjust the carrying value of certain of its investments to fair value at the end of each period. Fair values are based on a variety of inputs and may include interest rates, known historical trades, yield curve information, benchmark data, prepayment speeds, credit quality and broker/dealer quotes.

Accounts Receivable

Accounts Receivable

The Company’s accounts receivable are attributable primarily to VARs, VADs and end customers. Collateral is generally not required. The Company also maintains allowances for doubtful accounts for estimated losses resulting from the inability of the Company’s customers to make payments. The Company periodically reviews these estimated allowances, including by conducting an analysis of the customer's payment history and creditworthiness, the age of the trade receivable balances and current economic conditions that may affect a customer’s ability to make payments. Based on this review, the Company specifically reserves for those accounts deemed uncollectible. When receivables are determined to be uncollectible, principal amounts of such receivables outstanding are deducted from the allowance. The allowance for doubtful accounts was $3.3 million and $3.8 million as of December 31, 2013 and 2012, respectively. If the financial condition of a significant distributor or customer were to deteriorate, the Company’s operating results could be adversely affected. One distributor, Ingram Micro, accounted for 10% and 11% of gross accounts receivable at December 31, 2013 and 2012, respectively.

Inventory

Inventory

Inventories are stated at the lower of cost or market on a standard cost basis, which approximates actual cost. The Company’s inventories primarily consist of finished goods as of December 31, 2013 and 2012.

Property and Equipment

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which is generally three years for computer equipment and software, the lesser of the lease term or ten years for leasehold improvements, which is the estimated useful life, seven years for office equipment and furniture and the Company’s enterprise resource planning system and 40 years for buildings.

Long-Lived Assets

Long-Lived Assets

The Company reviews for impairment of long-lived assets and certain identifiable intangible assets to be held and used whenever events or changes in circumstances indicate that the carrying amount of such assets may not be fully recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Measurement of an impairment loss is based on the fair value of the asset compared to its carrying value. Long-lived assets and certain identifiable intangible assets to be disposed of are reported at the lower of carrying amount or fair value less costs to sell.

Goodwill

Goodwill

The Company accounts for goodwill in accordance with the authoritative guidance, which requires that goodwill and certain intangible assets are not amortized, but are subject to an annual impairment test. There was no impairment of goodwill or indefinite lived intangible assets as a result of the annual impairment tests analyses completed during the fourth quarters of 2013 and 2012, respectively. The authoritative guidance provides entities with an option to perform a qualitative assessment to determine whether further quantitative impairment testing is necessary. The Company performed the qualitative assessment when it performed its goodwill impairment test in the fourth quarter of 2013. As a result of the qualitative analysis, no further quantitative impairment test was deemed necessary. See Note 3 for acquisitions and Note 11 for segment information.

Intangible Assets

Intangible Assets

The Company has intangible assets which were primarily acquired in conjunction with business combinations and technology purchases. Intangible assets with finite lives are recorded at cost, less accumulated amortization. Amortization is recognized on a straight-line basis over the estimated useful lives of the respective assets, generally three to seven years, except for patents, which are amortized over the lesser of their remaining life or ten years. In accordance with the authoritative guidance, the Company records acquired product related intangible assets at net realizable value and reviews this technology for impairment on a periodic basis by comparing the estimated net realizable value to the unamortized cost of the technology. In-process R&D is initially capitalized at fair value as an intangible asset with an indefinite life and assessed for impairment thereafter. When in-process R&D projects are completed, the corresponding amount is reclassified as an amortizable purchased intangible asset and is amortized over the asset's estimated useful life.

Intangible assets consist of the following (in thousands):

	December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	677,509	$	428,418	5.60
Other	482,918		222,414		7.52
Total	$	1,160,427	$	650,832	6.38

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	620,032	$	339,608	5.60
Other	446,601		170,820		7.28
Total	$	1,066,633	$	510,428	6.29

Other intangible assets consist primarily of customer relationships, trade names, covenants not to compete and patents. Amortization of product related intangible assets includes amortization of product related technologies and patents and is reported as a Cost of net revenues in the accompanying consolidated statements of income. Amortization of other intangible assets includes amortization of customer relationships, trade names and covenants not to compete and is reported as an Operating expense in the accompanying consolidated statements of income. The Company monitors its intangible assets for indicators of impairment. If the Company determines an impairment has occurred, it will write-down the intangible asset to its fair value.

Software Development Costs

Software Development Costs

The authoritative guidance requires certain internal software development costs related to software to be sold to be capitalized upon the establishment of technological feasibility. The Company's software development costs incurred subsequent to achieving technological feasibility have not been significant and substantially all software development costs have been expensed as incurred.

Internal Use Software

Internal Use Software

In accordance with the authoritative guidance, the Company capitalizes external direct costs of materials and services and internal costs such as payroll and benefits of those employees directly associated with the development of new functionality in internal use software and software developed related to its software as a service (“SaaS”) offerings. The amount of costs capitalized in 2013 and 2012 relating to internal use software was $62.7 million and $51.5 million, respectively. These costs are being amortized over the estimated useful life of the software, which is generally three to seven years, and are included in property and equipment in the accompanying consolidated balance sheets. The total amounts charged to expense relating to internal use software was approximately $58.6 million, $44.5 million and $37.2 million, during the years ended December 31, 2013, 2012 and 2011, respectively.

Revenue Recognition

Revenue Recognition

Net revenues include the following categories: Product and licenses, Software as a service, License updates and maintenance and Professional services. Product and licenses revenues primarily represent fees related to the licensing of the Company’s software and hardware appliance products. These revenues are reflected net of sales allowances, cooperative advertising agreements, partner incentive programs and provisions for returns. Shipping charges billed to customers are included in Product and license revenue and the related shipping costs are included in Cost of product and license revenue. SaaS revenues consist primarily of fees related to online service agreements, which are recognized ratably over the contract term, which is typically 12 months. In addition, SaaS revenues may also include set-up fees, which are recognized ratably over the contract term or the expected customer life, whichever is longer. License updates and maintenance revenues consist of fees related to the Subscription Advantage program and maintenance fees, which include technical support and hardware and software maintenance. The Company licenses many of its virtualization products bundled with a one-year contract for its Subscription Advantage program. Subscription Advantage is a renewable program that provides subscribers with immediate access to software upgrades, enhancements and maintenance releases when and if they become available during the term of the contract. Subscription Advantage and maintenance fees are recognized ratably over the term of the contract, which is typically 12 to 24 months. The Company capitalizes certain third-party commissions related to Subscription Advantage renewals. The capitalized commissions are amortized to Sales, marketing and services expense at the time the related deferred revenue is recognized as revenue. Hardware and software maintenance and support contracts are typically sold separately. Hardware maintenance includes technical support, the latest software upgrades and replacement of malfunctioning appliances. Dedicated account management is available as an add-on to the program for a higher level of service. Software maintenance includes unlimited support with product version upgrades. Professional services revenues are comprised of fees from consulting services related to the implementation of the Company’s products and fees from product training and certification, which are recognized as the services are provided.

The Company recognizes revenue when it is earned and when all of the following criteria are met: persuasive evidence of the arrangement exists; delivery has occurred or the service has been provided and the Company has no remaining obligations; the fee is fixed or determinable; and collectability is probable. The Company defines these four criteria as follows:

• Persuasive evidence of the arrangement exists. The Company primarily sells its software products via electronic licenses and typically requires a purchase order from the distributor, reseller or end-user (depending on the arrangement) who have previously negotiated a master distribution or resale agreement and an executed product license agreement from the end-user. For appliance sales, it is the Company’s customary practice to require a purchase order from distributors and resellers who have previously negotiated a master packaged product distribution or resale agreement. The Company typically recognizes revenue upon shipment for its appliance sales. For maintenance, technical support, product training and consulting services, the Company requires a purchase order and an executed agreement. For SaaS, the Company generally requires the customer or the reseller to electronically accept the terms of an online services agreement or execute a contract.

• Delivery has occurred and the Company has no remaining obligations. The Company considers delivery of licenses under electronic licensing agreements to have occurred when the related products are shipped and the end-user has been electronically provided the software activation keys that allow the end-user to take immediate possession of the product. For hardware appliance sales, the Company’s standard delivery method is free-on-board shipping point. Consequently, it considers delivery of appliances to have occurred when they are shipped pursuant to an agreement and purchase order. For SaaS, delivery occurs upon providing the users with their login id and password. For product training and consulting services, the Company fulfills its obligation when the services are performed. For license updates and maintenance, the Company assumes that its obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 to 24 months. For SaaS, the Company assumes that its obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 months.

• The fee is fixed or determinable. In the normal course of business, the Company does not provide customers the right to a refund of any portion of their license fees or extended payment terms. The fees are considered fixed or determinable upon establishment of an arrangement that contains the final terms of the sale including description, quantity and price of each product or service purchased. For SaaS, the fee is considered fixed or determinable if it is not subject to refund or adjustment.

• Collectability is probable. The Company determines collectability on a customer-by-customer basis and generally does not require collateral. The Company typically sells product licenses and license updates to distributors or resellers for whom there are histories of successful collection. New customers are typically subject to a credit review process that evaluates their financial position and ultimately their ability to pay. Customers are also subject to an ongoing credit review process. If the Company determines from the outset of an arrangement that collectability is not probable, revenue recognition is deferred until customer payment is received and the other parameters of revenue recognition described above have been achieved. Management’s judgment is required in assessing the probability of collection, which is generally based on an evaluation of customer specific information, historical experience and economic market conditions.

The majority of the Company’s product and license revenue consists of revenue from the sale of stand-alone software products. Stand-alone software sales generally include a perpetual license to the Company’s software and is subject to the industry specific software revenue recognition guidance. In accordance with this guidance, the Company allocates revenue to license updates related to its stand-alone software and any other undelivered elements of the arrangement based on vendor specific objective evidence (“VSOE”) of fair value of each element and such amounts are deferred until the applicable delivery criteria and other revenue recognition criteria described above have been met. The balance of the revenues, net of any discounts inherent in the arrangement, is recognized at the outset of the arrangement using the residual method as the product licenses are delivered. If management cannot objectively determine the fair value of each undelivered element based on VSOE of fair value, revenue recognition is deferred until all elements are delivered, all services have been performed, or until fair value can be objectively determined.

For hardware appliance and software transactions, the arrangement consideration is allocated to stand-alone software deliverables as a group and the non-software deliverables based on the relative selling prices using the selling price hierarchy in the revenue recognition guidance. The selling price hierarchy for a deliverable is based on its VSOE if available, third-party evidence of selling price ("TPE") if VSOE is not available, or estimated selling price ("ESP") if neither VSOE nor TPE is available. The Company then recognizes revenue on each deliverable in accordance with its policies for product and service revenue recognition. VSOE of selling price is based on the price charged when the element is sold separately. In determining VSOE, the Company requires that a substantial majority of the selling prices fall within a reasonable range based on historical discounting trends for specific products and services. TPE of selling price is established by evaluating competitor products or services in stand-alone sales to similarly situated customers. However, as the Company’s products contain a significant element of proprietary technology and its solutions offer substantially different features and functionality, the comparable pricing of products with similar functionality typically cannot be obtained. Additionally, as the Company is unable to reliably determine what competitors products’ selling prices are on a stand-alone basis, the Company is not typically able to determine TPE. The estimate of selling price is established considering multiple factors including, but not limited to, pricing practices in different geographies and through different sales channels and competitor pricing strategies.

For the Company’s non-software transactions, it allocates the arrangement consideration based on the relative selling price of the deliverables. For the Company’s hardware appliances, it uses ESP as its selling price. For the Company’s support and services, it generally uses VSOE as its selling price. When the Company is unable to establish selling price using VSOE for its support and services, the Company uses ESP in its allocation of arrangement consideration.

The Company’s SaaS products are considered service arrangements per the authoritative guidance; accordingly, the Company follows the provisions of Securities and Exchange Commission Staff Accounting Bulletin (“SAB”) No. 104, Revenue Recognition, when accounting for these service arrangements. Generally, the Company’s SaaS products are sold separately and not bundled with the Enterprise and Service Provider division’s products and services.

In the normal course of business, the Company is not obligated to accept product returns from its distributors under any conditions, unless the product item is defective in manufacture. The Company establishes provisions for estimated returns, as well as other sales allowances, concurrently with the recognition of revenue. The provisions are established based upon consideration of a variety of factors, including, among other things, recent and historical return rates for both specific products and distributors and the impact of any new product releases and projected economic conditions. Product returns are provided for in the consolidated financial statements and have historically been within management’s expectations. Allowances for estimated product returns amounted to approximately $2.1 million and $2.6 million at December 31, 2013 and December 31, 2012, respectively. The Company also records estimated reductions to revenue for customer programs and incentive offerings including volume-based incentives. The Company could take actions to increase its customer incentive offerings, which could result in an incremental reduction to revenue at the time the incentive is offered.

Product Concentration

Product Concentration

The Company derives a substantial portion of its revenues from its Mobile and Desktop products, which include its XenDesktop and XenApp products and related services, and anticipates that these products and future derivative products and product lines based upon this technology will continue to constitute a majority of its revenue. The Company could experience declines in demand for its Mobile and Desktop products and other products, whether as a result of general economic conditions, the delay or reduction in technology purchases, new competitive product releases, price competition, lack of success of its strategic partners, technological change or other factors.

Cost of Net Revenues

Cost of Net Revenues

Cost of product and license revenues consists primarily of hardware, product media and duplication, manuals, packaging materials, shipping expense, server capacity costs. In addition, the Company is a party to licensing agreements with various entities, which give the Company the right to use certain software code in its products or in the development of future products in exchange for the payment of fixed fees or amounts based upon the sales of the related product. The licensing agreements generally have terms ranging from one to five years, and generally include renewal options. However, some agreements are perpetual unless expressly terminated. Royalties and other costs related to these agreements are included in cost of net revenues. Cost of services and maintenance revenue consists primarily of compensation and other personnel-related costs of providing technical support and consulting, as well as the Company’s SaaS. Also included in cost of net revenues is amortization of product related intangible assets which includes acquired core and product technology and associated patents.

Foreign Currency

Foreign Currency

The functional currency for all of the Company’s wholly-owned foreign subsidiaries in its Enterprise and Service Provider division is the U.S. dollar. Monetary assets and liabilities of such subsidiaries are remeasured into U.S. dollars at exchange rates in effect at the balance sheet date, and revenues and expenses are remeasured at average rates prevailing during the year. The functional currency of the Company’s wholly-owned foreign subsidiaries of its SaaS division is the currency of the country in which each subsidiary is located. The Company translates assets and liabilities of these foreign subsidiaries at exchange rates in effect at the balance sheet date. The Company includes accumulated net translation adjustments in equity as a component of Accumulated other comprehensive income (loss). Foreign currency transaction gains and losses are the result of exchange rate changes on transactions denominated in currencies other than the functional currency, including U.S. dollars. The remeasurement of those foreign currency transactions is included in determining net income or loss for the period of exchange. Remeasurement and foreign currency transaction (losses) gains of approximately $(4.9) million, $(3.3) million and $4.7 million for the years ended December 31, 2013, 2012, and 2011, respectively, are included in Other (expense) income, net, in the accompanying consolidated statements of income.

Derivatives and Hedging Activities

Derivatives and Hedging Activities

In accordance with the authoritative guidance, the Company records derivatives at fair value as either assets or liabilities on the balance sheet. For derivatives that are designated as and qualify as effective cash flow hedges, the portion of gain or loss on the derivative instrument effective at offsetting changes in the hedged item is reported as a component of Accumulated other comprehensive income (loss) and reclassified into earnings as operating expense, net, when the hedged transaction affects earnings. Derivatives not designated as hedging instruments are adjusted to fair value through earnings as Other (expense) income, net, in the period during which changes in fair value occur. The application of the authoritative guidance could impact the volatility of earnings.

The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk-management objective and strategy for undertaking various hedge transactions. This process includes attributing all derivatives that are designated as cash flow hedges to floating rate assets or liabilities or forecasted transactions. The Company also formally assesses, both at the inception of the hedge and on an ongoing basis, whether each derivative is highly effective in offsetting changes in cash flows of the hedged item. Fluctuations in the value of the derivative instruments are generally offset by changes in the hedged item; however, if it is determined that a derivative is not highly effective as a hedge or if a derivative ceases to be a highly effective hedge, the Company will discontinue hedge accounting prospectively for the affected derivative.

The Company is exposed to risk of default by its hedging counterparties. Although this risk is concentrated among a limited number of counterparties, the Company’s foreign exchange hedging policy attempts to minimize this risk by placing limits on the amount of exposure that may exist with any single financial institution at a time.

Pension Liability

Pension Liability

The Company provides retirement benefits to certain employees who are not U.S. based. Generally, benefits under these programs are based on an employee’s length of service and level of compensation. The majority of these programs are commonly referred to as termination indemnities, which provide retirement benefits in accordance with programs mandated by the governments of the countries in which such employees work.

The Company had accrued $9.2 million and $9.8 million for these pension liabilities at December 31, 2013 and 2012, respectively. Expenses for the programs for 2013, 2012 and 2011 amounted to $3.5 million, $1.5 million and $1.8 million, respectively.

Advertising Costs

Advertising Costs

The Company expenses advertising costs as incurred. The Company has advertising agreements with, and purchases advertising from, online media providers to advertise its SaaS. The Company also has cooperative advertising agreements with certain distributors and resellers whereby the Company will reimburse distributors and resellers for qualified advertising of Company products. Reimbursement is made once the distributor, reseller or provider provides substantiation of qualified expenses. The Company estimates the impact of these expenses and recognizes them at the time of product sales as a reduction of net revenue in the accompanying consolidated statements of income. The total costs the Company recognized related to advertising were approximately $146.5 million, $137.5 million and $130.8 million, during the years ended December 31, 2013, 2012 and 2011, respectively.

Income Taxes

Income Taxes

The Company and one or more of its subsidiaries is subject to United States federal income taxes, as well as income taxes of multiple state and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years prior to 2009.

In the ordinary course of global business, there are transactions for which the ultimate tax outcome is uncertain; thus, judgment is required in determining the worldwide provision for income taxes. The Company provides for income taxes on transactions based on its estimate of the probable liability. The Company adjusts its provision as appropriate for changes that impact its underlying judgments. Changes that impact provision estimates include such items as jurisdictional interpretations on tax filing positions based on the results of tax audits and general tax authority rulings. Due to the evolving nature of tax rules combined with the large number of jurisdictions in which the Company operates, estimates of its tax liability and the realizability of its deferred tax assets could change in the future, which may result in additional tax liabilities and adversely affect the Company’s results of operations, financial condition and cash flows.

The Company is required to estimate its income taxes in each of the jurisdictions in which it operates as part of the process of preparing its consolidated financial statements. The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company reviews deferred tax assets periodically for recoverability and makes estimates and judgments regarding the expected geographic sources of taxable income and gains from investments, as well as tax planning strategies in assessing the need for a valuation allowance.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Significant estimates made by management include the provision for doubtful accounts receivable, the provision to reduce obsolete or excess inventory to market, the provision for estimated returns, as well as sales allowances, the assumptions used in the valuation of stock-based awards, the assumptions used in the discounted cash flows to mark certain of its investments to market, the valuation of the Company’s goodwill, net realizable value of product related and other intangible assets, the provision for vacant facility costs, the provision for income taxes and the amortization and depreciation periods for intangible and long-lived assets. While the Company believes that such estimates are fair when considered in conjunction with the consolidated financial position and results of operations taken as a whole, the actual amounts of such items, when known, will vary from these estimates.

Accounting for Stock-Based Compensation

Accounting for Stock-Based Compensation Plans

The Company has various stock-based compensation plans for its employees and outside directors and accounts for stock-based compensation arrangements in accordance with the authoritative guidance, which requires the Company to measure and record compensation expense in its consolidated financial statements using a fair value method. See Note 7 for further information regarding the Company’s stock-based compensation plans.

Net Income Per Share Attributable to Citrix Systems, Inc. Stockholders'

Net Income Per Share Attributable to Citrix Systems, Inc. Stockholders

Net income per share attributable to Citrix Systems, Inc. stockholders - basic is calculated by dividing income available to stockholders by the weighted-average number of common shares outstanding during each period. Net income per share attributable to Citrix Systems, Inc. stockholders - diluted is computed using the weighted-average number of common and dilutive common share equivalents outstanding during the period. Dilutive common share equivalents consist of shares issuable upon the vesting or exercise of stock awards (calculated using the treasury stock method) during the period they were outstanding. Certain shares under the Company’s stock-based compensation programs were excluded from the computation of diluted earnings per share due to their anti-dilutive effect for the respective periods in which they were outstanding. The reconciliation of the numerator and denominator of the earnings per share calculation is presented in Note 13.

Reclassifications

Reclassifications

Certain reclassifications of the prior years' amounts have been made to conform to the current year's presentation. In the Property and Equipment table above, the Company determined it was more practical to present Assets under construction on a separate line as opposed to including the amounts within each asset class. Therefore, the reclassifications only resulted in changes to the amounts between asset classes.

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Investments (Schedule Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Investment [Line Items]
Amortized Cost	$ 1,307,910	$ 876,988
Gross Unrealized Gains	2,401	3,539
Gross Unrealized Losses	(635)	(192)
Fair Value	1,309,676	880,335
Agency securities
Investment [Line Items]
Amortized Cost	453,922	400,365
Gross Unrealized Gains	1,177	2,347
Gross Unrealized Losses	(349)	(5)
Fair Value	454,750	402,707
Corporate securities
Investment [Line Items]
Amortized Cost	643,360	404,546
Gross Unrealized Gains	947	947
Gross Unrealized Losses	(216)	(171)
Fair Value	644,091	405,322
Municipal securities
Investment [Line Items]
Amortized Cost	53,698	32,214
Gross Unrealized Gains	81	114
Gross Unrealized Losses	(23)	(15)
Fair Value	53,756	32,313
Government securities
Investment [Line Items]
Amortized Cost	156,930	39,863
Gross Unrealized Gains	196	131
Gross Unrealized Losses	(47)	(1)
Fair Value	$ 157,079	$ 39,993

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Significant Accounting Policies (Intangible Assets) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,160,427,000	$ 1,066,633,000
Accumulated Amortization	650,832,000	510,428,000
Weighted-Average Life (Years)	6 years 4 months 18 days	6 years 3 months 15 days
Impairment of intangible assets	0
Product related intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	677,509,000	620,032,000
Accumulated Amortization	428,418,000	339,608,000
Weighted-Average Life (Years)	5 years 7 months 6 days	5 years 7 months 6 days
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	482,918,000	446,601,000
Accumulated Amortization	222,414,000	170,820,000
Weighted-Average Life (Years)	7 years 6 months 8 days	7 years 3 months 11 days
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (Years)	10 years
Trade names | Cloud.com
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets		5,200,000
Net carrying amount after write-down		$ 0
Minimum
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (Years)	3 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (Years)	7 years

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Derivative Financial Instruments (Schedule Of The Fair Values Of Derivative Instruments) (Details) (Cash flow hedging, Foreign currency, Forward contracts, USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivatives Designated as Hedging Instruments | Prepaid expenses and other current assets
Asset Derivatives
Derivative assets fair value	$ 4,559	$ 4,157
Derivatives Designated as Hedging Instruments | Accrued expenses and other current liabilities
Liability Derivatives
Derivative liabilities fair value	1,578	4,162
Derivatives Not Designated as Hedging Instruments | Prepaid expenses and other current assets
Asset Derivatives
Derivative assets fair value	393	448
Derivatives Not Designated as Hedging Instruments | Accrued expenses and other current liabilities
Liability Derivatives
Derivative liabilities fair value	$ 165	$ 52

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Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Income by Component

The changes in Accumulated other comprehensive income (loss) by component, net of tax, are as follows (in thousands):

	Foreign currency			Unrealized gain (loss) on available-for-sale securities			Unrealized gain (loss) on derivative instruments			Other comprehensive gain (loss) on pension liability			Total
	(In thousands)
Balance at December 31, 2012	$	(3,024	)	$	2,426		$	(10	)	$	(7,097	)	$	(7,705	)
Other comprehensive income before reclassifications	8,482			(985		)	(67		)	2,500			9,930
Amounts reclassified from Accumulated other comprehensive income (loss)	—			(203		)	2,929			—			2,726
Net current period other comprehensive income	8,482			(1,188		)	2,862			2,500			12,656
Balance at December 31, 2013	$	5,458		$	1,238		$	2,852		$	(4,597	)	$	4,951

Schedule of Reclassification out of Accumulated Other Comprehensive Income

Reclassifications out of Accumulated other comprehensive income (loss) are as follows (in thousands):

	For the Twelve Months Ended December 31, 2013
	(In thousands)
Details about Accumulated other comprehensive income (loss) components	Amount reclassified from Accumulated other comprehensive income (loss), net of tax			Affected line item in the Consolidated Statements of Income
Unrealized net gain on available-for-sale securities	$	203		Other (expense) income, net
Unrealized net losses on cash flow hedges	(2,929		)	Operating expenses *
	$	(2,726	)

* Operating expenses amounts allocated to Research and development, Sales, marketing and services, and General and administrative are not individually significant.

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Fair Value Measurements (Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Cost method investments	$ 24,300,000	$ 26,200,000
Cost method investments, fair value of impaired investment	5,600,000	9,500,000
Cost method investment, impairment charge	3,700,000	3,500,000	3,500,000
Impaired investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Cost method investments	9,300,000	13,000,000
Convertible debt securities | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at December 31, 2012	3,341,000
Purchases of Level 3 securities	9,700,000
Transfers out of Level 3	(2,750,000)
Balance at December 31, 2013	$ 10,291,000

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Income Taxes (Reconciliation of the Company's Effective Tax Rate to the Statutory Federal Rate) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory taxes	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	1.20%	1.90%	1.70%
Foreign operations	(14.80%)	(10.20%)	(14.50%)
Permanent differences	(1.10%)	(2.00%)	1.20%
Tax credits	(10.90%)	(4.70%)	(7.10%)
Stock option compensation	0.40%	0.10%	0.10%
Change in accruals for uncertain tax positions	3.30%	(5.30%)	1.40%
Other	(0.60%)	(0.70%)	(0.40%)
Effective income tax rate	12.50%	14.10%	17.40%

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Commitments and Contingencies (Schedule of Lease Commitments) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Operating Leases
2014	$ 60,982
2015	46,770
2016	39,353
2017	22,064
2018	18,536
Thereafter	88,885
Total	276,590
Sublease Income
2014	255
2015	260
2016	227
2017	218
2018	203
Thereafter	0
Total	$ 1,163

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Acquisitions (Pro Forma Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition, Pro Forma Information [Abstract]
Revenues	$ 2,921,604	$ 2,596,227
Income from operations	376,936	333,077
Net income	$ 336,250	$ 314,300
Per share - basic (in dollars per share)	$ 1.80	$ 1.68
Per share - diluted (in dollars per share)	$ 1.79	$ 1.66

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Significant Accounting Policies

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES

Consolidation Policy

The consolidated financial statements of the Company include the accounts of its wholly-owned subsidiaries in the Americas, Europe, the Middle East and Africa (“EMEA”), Asia-Pacific and the SaaS division. All significant transactions and balances between the Company and its subsidiaries have been eliminated in consolidation.

Cash and Cash Equivalents

Cash and cash equivalents at December 31, 2013 and 2012 include marketable securities, which are primarily money market funds, commercial paper, agency, and government securities, municipal securities and corporate securities with initial or remaining contractual maturities when purchased of three months or less.

Investments

Short-term and long-term investments at December 31, 2013 and 2012 primarily consist of agency securities, corporate securities, municipal securities and government securities. Investments classified as available-for-sale are stated at fair value with unrealized gains and losses, net of taxes, reported in Accumulated other comprehensive income (loss). The Company classifies its available-for-sale investments as current and non-current based on their actual remaining time to maturity. The Company does not recognize changes in the fair value of its available-for-sale investments in income unless a decline in value is considered other-than-temporary in accordance with the authoritative guidance.

The Company’s investment policy is designed to limit exposure to any one issuer depending on credit quality. The Company uses information provided by third parties to adjust the carrying value of certain of its investments to fair value at the end of each period. Fair values are based on a variety of inputs and may include interest rates, known historical trades, yield curve information, benchmark data, prepayment speeds, credit quality and broker/dealer quotes.

Accounts Receivable

The Company’s accounts receivable are attributable primarily to VARs, VADs and end customers. Collateral is generally not required. The Company also maintains allowances for doubtful accounts for estimated losses resulting from the inability of the Company’s customers to make payments. The Company periodically reviews these estimated allowances, including by conducting an analysis of the customer's payment history and creditworthiness, the age of the trade receivable balances and current economic conditions that may affect a customer’s ability to make payments. Based on this review, the Company specifically reserves for those accounts deemed uncollectible. When receivables are determined to be uncollectible, principal amounts of such receivables outstanding are deducted from the allowance. The allowance for doubtful accounts was $3.3 million and $3.8 million as of December 31, 2013 and 2012, respectively. If the financial condition of a significant distributor or customer were to deteriorate, the Company’s operating results could be adversely affected. One distributor, Ingram Micro, accounted for 10% and 11% of gross accounts receivable at December 31, 2013 and 2012, respectively.

Inventory

Inventories are stated at the lower of cost or market on a standard cost basis, which approximates actual cost. The Company’s inventories primarily consist of finished goods as of December 31, 2013 and 2012.

Property and Equipment

Property and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which is generally three years for computer equipment and software, the lesser of the lease term or ten years for leasehold improvements, which is the estimated useful life, seven years for office equipment and furniture and the Company’s enterprise resource planning system and 40 years for buildings.

During 2013 and 2012, the Company retired $10.3 million and $5.3 million, respectively, in property and equipment that were no longer in use. At the time of retirement, the remaining net book value of these assets was not material and no material asset retirement obligations were associated with them.

Property and equipment consist of the following:

	December 31,
	2013			2012
	(In thousands)
Buildings	$	85,092		$	76,202
Computer equipment	204,110			178,948
Software	316,902			259,225
Equipment and furniture	105,145			86,362
Leasehold improvements	168,990			149,731
	880,239			750,468
Less accumulated depreciation and amortization	(597,268		)	(479,460		)
Assets under construction	28,438			15,517
Land	27,587			16,769
Total	$	338,996		$	303,294

Long-Lived Assets

The Company reviews for impairment of long-lived assets and certain identifiable intangible assets to be held and used whenever events or changes in circumstances indicate that the carrying amount of such assets may not be fully recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Measurement of an impairment loss is based on the fair value of the asset compared to its carrying value. Long-lived assets and certain identifiable intangible assets to be disposed of are reported at the lower of carrying amount or fair value less costs to sell.

For the year ended December 31, 2012, the Company decided to contribute its CloudStack tradename acquired in conjunction with its acquisition of Cloud.com to the Apache Software Foundation. As a result, the carrying value of the CloudStack tradename was written down to zero, resulting in a $5.2 million impairment, which was recorded in Amortization of other intangible assets in the accompanying consolidated statements of income. During 2013 and 2011, the Company did not recognize any impairment charges associated with its intangible assets.

Goodwill

The Company accounts for goodwill in accordance with the authoritative guidance, which requires that goodwill and certain intangible assets are not amortized, but are subject to an annual impairment test. There was no impairment of goodwill or indefinite lived intangible assets as a result of the annual impairment tests analyses completed during the fourth quarters of 2013 and 2012, respectively. The authoritative guidance provides entities with an option to perform a qualitative assessment to determine whether further quantitative impairment testing is necessary. The Company performed the qualitative assessment when it performed its goodwill impairment test in the fourth quarter of 2013. As a result of the qualitative analysis, no further quantitative impairment test was deemed necessary. See Note 3 for acquisitions and Note 11 for segment information.

The following table presents the change in goodwill allocated to the Company’s reportable segments during 2013 and 2012 (in thousands):

	Balance at January 1, 2013		Additions			Other				Balance at December 31, 2013		Balance at January 1, 2012		Additions			Other				Balance at December 31, 2012
Enterprise and Service Provider division	$	1,158,580	$	248,800		$	(5,224	)	(2)	$	1,402,156	$	956,504	$	257,379		$	(55,303	)	(4)	$	1,158,580
SaaS division	359,639		2,668			4,486			(3)	366,793		282,616		26,481			50,542			(4)	359,639
Consolidated	$	1,518,219	$	251,468	(1)	$	(738	)		$	1,768,949	$	1,239,120	$	283,860	(1)	$	(4,761	)		$	1,518,219

⁽¹⁾  Amount primarily relates to acquisitions. See Note 3 for more information regarding the Company’s acquisitions.

⁽²⁾  Amount primarily relates to adjustments to the preliminary purchase price allocation for certain 2012 Acquisitions.

⁽³⁾  Amount primarily relates to foreign currency translation.

⁽⁴⁾  Amount primarily relates to reclassification of goodwill between segments. In the first quarter of 2012, the Company transferred the business acquired in its acquisition of Novell Labs, Inc. (d/b/a "ShareFile") from its Enterprise and Service Provider division to its SaaS division. Also included in the SaaS division is foreign currency translation.

Intangible Assets

The Company has intangible assets which were primarily acquired in conjunction with business combinations and technology purchases. Intangible assets with finite lives are recorded at cost, less accumulated amortization. Amortization is recognized on a straight-line basis over the estimated useful lives of the respective assets, generally three to seven years, except for patents, which are amortized over the lesser of their remaining life or ten years. In accordance with the authoritative guidance, the Company records acquired product related intangible assets at net realizable value and reviews this technology for impairment on a periodic basis by comparing the estimated net realizable value to the unamortized cost of the technology. In-process R&D is initially capitalized at fair value as an intangible asset with an indefinite life and assessed for impairment thereafter. When in-process R&D projects are completed, the corresponding amount is reclassified as an amortizable purchased intangible asset and is amortized over the asset's estimated useful life.

Intangible assets consist of the following (in thousands):

	December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	677,509	$	428,418	5.60
Other	482,918		222,414		7.52
Total	$	1,160,427	$	650,832	6.38

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	620,032	$	339,608	5.60
Other	446,601		170,820		7.28
Total	$	1,066,633	$	510,428	6.29

Other intangible assets consist primarily of customer relationships, trade names, covenants not to compete and patents. Amortization of product related intangible assets includes amortization of product related technologies and patents and is reported as a Cost of net revenues in the accompanying consolidated statements of income. Amortization of other intangible assets includes amortization of customer relationships, trade names and covenants not to compete and is reported as an Operating expense in the accompanying consolidated statements of income. The Company monitors its intangible assets for indicators of impairment. If the Company determines an impairment has occurred, it will write-down the intangible asset to its fair value. There were no impairments for the year ended December 31, 2013. For the year ended December 31, 2012, Amortization of other intangible assets includes a $5.2 million impairment related to the Company's decision to contribute its CloudStack tradename acquired in conjunction with its acquisition of Cloud.com to the Apache Software Foundation. As a result, the carrying value of the CloudStack tradename was written down to zero. See Note 3 for more information regarding the Company's acquisitions.

Estimated future annual amortization expense is as follows (in thousands):

Year ending December 31,
2014	$	132,956
2015	111,016
2016	88,749
2017	61,057
2018	47,618

Software Development Costs

The authoritative guidance requires certain internal software development costs related to software to be sold to be capitalized upon the establishment of technological feasibility. The Company's software development costs incurred subsequent to achieving technological feasibility have not been significant and substantially all software development costs have been expensed as incurred.

Internal Use Software

In accordance with the authoritative guidance, the Company capitalizes external direct costs of materials and services and internal costs such as payroll and benefits of those employees directly associated with the development of new functionality in internal use software and software developed related to its software as a service (“SaaS”) offerings. The amount of costs capitalized in 2013 and 2012 relating to internal use software was $62.7 million and $51.5 million, respectively. These costs are being amortized over the estimated useful life of the software, which is generally three to seven years, and are included in property and equipment in the accompanying consolidated balance sheets. The total amounts charged to expense relating to internal use software was approximately $58.6 million, $44.5 million and $37.2 million, during the years ended December 31, 2013, 2012 and 2011, respectively.

Revenue Recognition

Net revenues include the following categories: Product and licenses, Software as a service, License updates and maintenance and Professional services. Product and licenses revenues primarily represent fees related to the licensing of the Company’s software and hardware appliance products. These revenues are reflected net of sales allowances, cooperative advertising agreements, partner incentive programs and provisions for returns. Shipping charges billed to customers are included in Product and license revenue and the related shipping costs are included in Cost of product and license revenue. SaaS revenues consist primarily of fees related to online service agreements, which are recognized ratably over the contract term, which is typically 12 months. In addition, SaaS revenues may also include set-up fees, which are recognized ratably over the contract term or the expected customer life, whichever is longer. License updates and maintenance revenues consist of fees related to the Subscription Advantage program and maintenance fees, which include technical support and hardware and software maintenance. The Company licenses many of its virtualization products bundled with a one-year contract for its Subscription Advantage program. Subscription Advantage is a renewable program that provides subscribers with immediate access to software upgrades, enhancements and maintenance releases when and if they become available during the term of the contract. Subscription Advantage and maintenance fees are recognized ratably over the term of the contract, which is typically 12 to 24 months. The Company capitalizes certain third-party commissions related to Subscription Advantage renewals. The capitalized commissions are amortized to Sales, marketing and services expense at the time the related deferred revenue is recognized as revenue. Hardware and software maintenance and support contracts are typically sold separately. Hardware maintenance includes technical support, the latest software upgrades and replacement of malfunctioning appliances. Dedicated account management is available as an add-on to the program for a higher level of service. Software maintenance includes unlimited support with product version upgrades. Professional services revenues are comprised of fees from consulting services related to the implementation of the Company’s products and fees from product training and certification, which are recognized as the services are provided.

The Company recognizes revenue when it is earned and when all of the following criteria are met: persuasive evidence of the arrangement exists; delivery has occurred or the service has been provided and the Company has no remaining obligations; the fee is fixed or determinable; and collectability is probable. The Company defines these four criteria as follows:

• Persuasive evidence of the arrangement exists. The Company primarily sells its software products via electronic licenses and typically requires a purchase order from the distributor, reseller or end-user (depending on the arrangement) who have previously negotiated a master distribution or resale agreement and an executed product license agreement from the end-user. For appliance sales, it is the Company’s customary practice to require a purchase order from distributors and resellers who have previously negotiated a master packaged product distribution or resale agreement. The Company typically recognizes revenue upon shipment for its appliance sales. For maintenance, technical support, product training and consulting services, the Company requires a purchase order and an executed agreement. For SaaS, the Company generally requires the customer or the reseller to electronically accept the terms of an online services agreement or execute a contract.

• Delivery has occurred and the Company has no remaining obligations. The Company considers delivery of licenses under electronic licensing agreements to have occurred when the related products are shipped and the end-user has been electronically provided the software activation keys that allow the end-user to take immediate possession of the product. For hardware appliance sales, the Company’s standard delivery method is free-on-board shipping point. Consequently, it considers delivery of appliances to have occurred when they are shipped pursuant to an agreement and purchase order. For SaaS, delivery occurs upon providing the users with their login id and password. For product training and consulting services, the Company fulfills its obligation when the services are performed. For license updates and maintenance, the Company assumes that its obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 to 24 months. For SaaS, the Company assumes that its obligation is satisfied ratably over the respective terms of the agreements, which are typically 12 months.

• The fee is fixed or determinable. In the normal course of business, the Company does not provide customers the right to a refund of any portion of their license fees or extended payment terms. The fees are considered fixed or determinable upon establishment of an arrangement that contains the final terms of the sale including description, quantity and price of each product or service purchased. For SaaS, the fee is considered fixed or determinable if it is not subject to refund or adjustment.

• Collectability is probable. The Company determines collectability on a customer-by-customer basis and generally does not require collateral. The Company typically sells product licenses and license updates to distributors or resellers for whom there are histories of successful collection. New customers are typically subject to a credit review process that evaluates their financial position and ultimately their ability to pay. Customers are also subject to an ongoing credit review process. If the Company determines from the outset of an arrangement that collectability is not probable, revenue recognition is deferred until customer payment is received and the other parameters of revenue recognition described above have been achieved. Management’s judgment is required in assessing the probability of collection, which is generally based on an evaluation of customer specific information, historical experience and economic market conditions.

The majority of the Company’s product and license revenue consists of revenue from the sale of stand-alone software products. Stand-alone software sales generally include a perpetual license to the Company’s software and is subject to the industry specific software revenue recognition guidance. In accordance with this guidance, the Company allocates revenue to license updates related to its stand-alone software and any other undelivered elements of the arrangement based on vendor specific objective evidence (“VSOE”) of fair value of each element and such amounts are deferred until the applicable delivery criteria and other revenue recognition criteria described above have been met. The balance of the revenues, net of any discounts inherent in the arrangement, is recognized at the outset of the arrangement using the residual method as the product licenses are delivered. If management cannot objectively determine the fair value of each undelivered element based on VSOE of fair value, revenue recognition is deferred until all elements are delivered, all services have been performed, or until fair value can be objectively determined.

For hardware appliance and software transactions, the arrangement consideration is allocated to stand-alone software deliverables as a group and the non-software deliverables based on the relative selling prices using the selling price hierarchy in the revenue recognition guidance. The selling price hierarchy for a deliverable is based on its VSOE if available, third-party evidence of selling price ("TPE") if VSOE is not available, or estimated selling price ("ESP") if neither VSOE nor TPE is available. The Company then recognizes revenue on each deliverable in accordance with its policies for product and service revenue recognition. VSOE of selling price is based on the price charged when the element is sold separately. In determining VSOE, the Company requires that a substantial majority of the selling prices fall within a reasonable range based on historical discounting trends for specific products and services. TPE of selling price is established by evaluating competitor products or services in stand-alone sales to similarly situated customers. However, as the Company’s products contain a significant element of proprietary technology and its solutions offer substantially different features and functionality, the comparable pricing of products with similar functionality typically cannot be obtained. Additionally, as the Company is unable to reliably determine what competitors products’ selling prices are on a stand-alone basis, the Company is not typically able to determine TPE. The estimate of selling price is established considering multiple factors including, but not limited to, pricing practices in different geographies and through different sales channels and competitor pricing strategies.

For the Company’s non-software transactions, it allocates the arrangement consideration based on the relative selling price of the deliverables. For the Company’s hardware appliances, it uses ESP as its selling price. For the Company’s support and services, it generally uses VSOE as its selling price. When the Company is unable to establish selling price using VSOE for its support and services, the Company uses ESP in its allocation of arrangement consideration.

The Company’s SaaS products are considered service arrangements per the authoritative guidance; accordingly, the Company follows the provisions of Securities and Exchange Commission Staff Accounting Bulletin (“SAB”) No. 104, Revenue Recognition, when accounting for these service arrangements. Generally, the Company’s SaaS products are sold separately and not bundled with the Enterprise and Service Provider division’s products and services.

In the normal course of business, the Company is not obligated to accept product returns from its distributors under any conditions, unless the product item is defective in manufacture. The Company establishes provisions for estimated returns, as well as other sales allowances, concurrently with the recognition of revenue. The provisions are established based upon consideration of a variety of factors, including, among other things, recent and historical return rates for both specific products and distributors and the impact of any new product releases and projected economic conditions. Product returns are provided for in the consolidated financial statements and have historically been within management’s expectations. Allowances for estimated product returns amounted to approximately $2.1 million and $2.6 million at December 31, 2013 and December 31, 2012, respectively. The Company also records estimated reductions to revenue for customer programs and incentive offerings including volume-based incentives. The Company could take actions to increase its customer incentive offerings, which could result in an incremental reduction to revenue at the time the incentive is offered.

Product Concentration

The Company derives a substantial portion of its revenues from its Mobile and Desktop products, which include its XenDesktop and XenApp products and related services, and anticipates that these products and future derivative products and product lines based upon this technology will continue to constitute a majority of its revenue. The Company could experience declines in demand for its Mobile and Desktop products and other products, whether as a result of general economic conditions, the delay or reduction in technology purchases, new competitive product releases, price competition, lack of success of its strategic partners, technological change or other factors.

Cost of Net Revenues

Cost of product and license revenues consists primarily of hardware, product media and duplication, manuals, packaging materials, shipping expense, server capacity costs. In addition, the Company is a party to licensing agreements with various entities, which give the Company the right to use certain software code in its products or in the development of future products in exchange for the payment of fixed fees or amounts based upon the sales of the related product. The licensing agreements generally have terms ranging from one to five years, and generally include renewal options. However, some agreements are perpetual unless expressly terminated. Royalties and other costs related to these agreements are included in cost of net revenues. Cost of services and maintenance revenue consists primarily of compensation and other personnel-related costs of providing technical support and consulting, as well as the Company’s SaaS. Also included in cost of net revenues is amortization of product related intangible assets which includes acquired core and product technology and associated patents.

Foreign Currency

The functional currency for all of the Company’s wholly-owned foreign subsidiaries in its Enterprise and Service Provider division is the U.S. dollar. Monetary assets and liabilities of such subsidiaries are remeasured into U.S. dollars at exchange rates in effect at the balance sheet date, and revenues and expenses are remeasured at average rates prevailing during the year. The functional currency of the Company’s wholly-owned foreign subsidiaries of its SaaS division is the currency of the country in which each subsidiary is located. The Company translates assets and liabilities of these foreign subsidiaries at exchange rates in effect at the balance sheet date. The Company includes accumulated net translation adjustments in equity as a component of Accumulated other comprehensive income (loss). Foreign currency transaction gains and losses are the result of exchange rate changes on transactions denominated in currencies other than the functional currency, including U.S. dollars. The remeasurement of those foreign currency transactions is included in determining net income or loss for the period of exchange. Remeasurement and foreign currency transaction (losses) gains of approximately $(4.9) million, $(3.3) million and $4.7 million for the years ended December 31, 2013, 2012, and 2011, respectively, are included in Other (expense) income, net, in the accompanying consolidated statements of income.

Derivatives and Hedging Activities

In accordance with the authoritative guidance, the Company records derivatives at fair value as either assets or liabilities on the balance sheet. For derivatives that are designated as and qualify as effective cash flow hedges, the portion of gain or loss on the derivative instrument effective at offsetting changes in the hedged item is reported as a component of Accumulated other comprehensive income (loss) and reclassified into earnings as operating expense, net, when the hedged transaction affects earnings. Derivatives not designated as hedging instruments are adjusted to fair value through earnings as Other (expense) income, net, in the period during which changes in fair value occur. The application of the authoritative guidance could impact the volatility of earnings.

The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk-management objective and strategy for undertaking various hedge transactions. This process includes attributing all derivatives that are designated as cash flow hedges to floating rate assets or liabilities or forecasted transactions. The Company also formally assesses, both at the inception of the hedge and on an ongoing basis, whether each derivative is highly effective in offsetting changes in cash flows of the hedged item. Fluctuations in the value of the derivative instruments are generally offset by changes in the hedged item; however, if it is determined that a derivative is not highly effective as a hedge or if a derivative ceases to be a highly effective hedge, the Company will discontinue hedge accounting prospectively for the affected derivative.

The Company is exposed to risk of default by its hedging counterparties. Although this risk is concentrated among a limited number of counterparties, the Company’s foreign exchange hedging policy attempts to minimize this risk by placing limits on the amount of exposure that may exist with any single financial institution at a time.

Pension Liability

The Company provides retirement benefits to certain employees who are not U.S. based. Generally, benefits under these programs are based on an employee’s length of service and level of compensation. The majority of these programs are commonly referred to as termination indemnities, which provide retirement benefits in accordance with programs mandated by the governments of the countries in which such employees work.

The Company had accrued $9.2 million and $9.8 million for these pension liabilities at December 31, 2013 and 2012, respectively. Expenses for the programs for 2013, 2012 and 2011 amounted to $3.5 million, $1.5 million and $1.8 million, respectively.

Advertising Costs

The Company expenses advertising costs as incurred. The Company has advertising agreements with, and purchases advertising from, online media providers to advertise its SaaS. The Company also has cooperative advertising agreements with certain distributors and resellers whereby the Company will reimburse distributors and resellers for qualified advertising of Company products. Reimbursement is made once the distributor, reseller or provider provides substantiation of qualified expenses. The Company estimates the impact of these expenses and recognizes them at the time of product sales as a reduction of net revenue in the accompanying consolidated statements of income. The total costs the Company recognized related to advertising were approximately $146.5 million, $137.5 million and $130.8 million, during the years ended December 31, 2013, 2012 and 2011, respectively.

Income Taxes

The Company and one or more of its subsidiaries is subject to United States federal income taxes, as well as income taxes of multiple state and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years prior to 2009.

In the ordinary course of global business, there are transactions for which the ultimate tax outcome is uncertain; thus, judgment is required in determining the worldwide provision for income taxes. The Company provides for income taxes on transactions based on its estimate of the probable liability. The Company adjusts its provision as appropriate for changes that impact its underlying judgments. Changes that impact provision estimates include such items as jurisdictional interpretations on tax filing positions based on the results of tax audits and general tax authority rulings. Due to the evolving nature of tax rules combined with the large number of jurisdictions in which the Company operates, estimates of its tax liability and the realizability of its deferred tax assets could change in the future, which may result in additional tax liabilities and adversely affect the Company’s results of operations, financial condition and cash flows.

The Company is required to estimate its income taxes in each of the jurisdictions in which it operates as part of the process of preparing its consolidated financial statements. The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company reviews deferred tax assets periodically for recoverability and makes estimates and judgments regarding the expected geographic sources of taxable income and gains from investments, as well as tax planning strategies in assessing the need for a valuation allowance.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Significant estimates made by management include the provision for doubtful accounts receivable, the provision to reduce obsolete or excess inventory to market, the provision for estimated returns, as well as sales allowances, the assumptions used in the valuation of stock-based awards, the assumptions used in the discounted cash flows to mark certain of its investments to market, the valuation of the Company’s goodwill, net realizable value of product related and other intangible assets, the provision for vacant facility costs, the provision for income taxes and the amortization and depreciation periods for intangible and long-lived assets. While the Company believes that such estimates are fair when considered in conjunction with the consolidated financial position and results of operations taken as a whole, the actual amounts of such items, when known, will vary from these estimates.

Accounting for Stock-Based Compensation Plans

The Company has various stock-based compensation plans for its employees and outside directors and accounts for stock-based compensation arrangements in accordance with the authoritative guidance, which requires the Company to measure and record compensation expense in its consolidated financial statements using a fair value method. See Note 7 for further information regarding the Company’s stock-based compensation plans.

Net Income Per Share Attributable to Citrix Systems, Inc. Stockholders

Net income per share attributable to Citrix Systems, Inc. stockholders - basic is calculated by dividing income available to stockholders by the weighted-average number of common shares outstanding during each period. Net income per share attributable to Citrix Systems, Inc. stockholders - diluted is computed using the weighted-average number of common and dilutive common share equivalents outstanding during the period. Dilutive common share equivalents consist of shares issuable upon the vesting or exercise of stock awards (calculated using the treasury stock method) during the period they were outstanding. Certain shares under the Company’s stock-based compensation programs were excluded from the computation of diluted earnings per share due to their anti-dilutive effect for the respective periods in which they were outstanding. The reconciliation of the numerator and denominator of the earnings per share calculation is presented in Note 13.

Reclassifications

Certain reclassifications of the prior years' amounts have been made to conform to the current year's presentation. In the Property and Equipment table above, the Company determined it was more practical to present Assets under construction on a separate line as opposed to including the amounts within each asset class. Therefore, the reclassifications only resulted in changes to the amounts between asset classes.

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Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ (26,465,000)	$ (18,185,000)
Interest on tax positions	800,000
Accrued interest on tax positions	0
Tax benefit expected to be recognized in the first quarter of 2013 under the provisions of the American Taxpayer Relief Act of 2012	10,700,000
Research
Operating Loss Carryforwards [Line Items]
Undistributed earnings from foreign subsidiaries	1,238,000,000
Tax credit carry forwards	55,600,000
United States
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	220,000,000
Foreign jurisdictions
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	$ 52,000,000

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Significant Accounting Policies (Estimated Future Annual Amortization Expense of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2014	$ 132,956
2015	111,016
2016	88,749
2017	61,057
2018	$ 47,618

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	As of December 31, 2013		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash and cash equivalents:
Cash	$	227,528	$	227,528	$	—	$	—
Money market funds	52,823		52,823		—		—
Corporate securities	389		—		389		—
Available-for-sale securities:
Agency securities	454,750		—		454,750		—
Corporate securities	644,091		—		633,801		10,291
Municipal securities	53,756		—		53,756		—
Government securities	157,079		—		157,079		—
Prepaid expenses and other current assets:
Foreign currency derivatives	4,952		—		4,952		—
Total assets	$	1,595,368	$	280,351	$	1,304,727	$	10,291
Accrued expenses and other current liabilities:
Foreign currency derivatives	1,743		—		1,743		—
Total liabilities	$	1,743	$	—	$	1,743	$	—

	As of December 31, 2012		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash and cash equivalents:
Cash	$	503,614	$	503,614	$	—	$	—
Money market funds	123,519		123,519		—		—
Corporate securities	16,476		—		16,476		—
Available-for-sale securities:
Agency securities	402,707		—		402,707		—
Corporate securities	405,322		—		401,981		3,341
Municipal securities	32,313		—		32,313		—
Government securities	39,993		—		39,993		—
Prepaid expenses and other current assets:
Foreign currency derivatives	4,157		—		4,157		—
Total assets	$	1,528,101	$	627,133	$	897,627	$	3,341
Accrued expenses and other current liabilities:
Foreign currency derivatives	4,162		—		4,162		—
Total liabilities	$	4,162	$	—	$	4,162	$	—

Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs

	Investments
	(in thousands)
Balance at December 31, 2012	$	3,341
Purchases of Level 3 securities	9,700
Transfers out of Level 3	(2,750		)
Balance at December 31, 2013	$	10,291

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Investments (Tables)

12 Months Ended

Dec. 31, 2013

Investments [Abstract]

Schedule Of Available-For-Sale Securities

Investments in available-for-sale securities at fair value were as follows for the periods ended (in thousands):

	December 31, 2013									December 31, 2012
Description of the Securities	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Agency securities	$	453,922	$	1,177	$	(349	)	$	454,750	$	400,365	$	2,347	$	(5	)	$	402,707
Corporate securities	643,360		947		(216		)	644,091		404,546		947		(171		)	405,322
Municipal securities	53,698		81		(23		)	53,756		32,214		114		(15		)	32,313
Government securities	156,930		196		(47		)	157,079		39,863		131		(1		)	39,993
Total	$	1,307,910	$	2,401	$	(635	)	$	1,309,676	$	876,988	$	3,539	$	(192	)	$	880,335

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Employee Stock-Based Compensation and Benefit Plans (Schedule of Stock Option Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Number of Options
Outstanding at December 31, 2012 (in shares)	7,589,532
Assumed (in shares)	285,817
Exercised (in shares)	(2,168,531)
Forfeited or expired (in shares)	(299,841)
Outstanding at December 31, 2013 (in shares)	5,406,977	7,589,532
Weighted- Average Exercise Price
Outstanding at December 31, 2012 (in dollars per share)	$ 54.15
Assumed (in dollars per share)	$ 11.85
Exercised (in dollars per share)	$ 33.97
Forfeited or expired (in dollars per share)	$ 60.90
Outstanding at December 31, 2013 (in dollars per share)	$ 59.64	$ 54.15
Additional Disclosures on Options
Weighted- Average Remaining Contractual Life, Outstanding at December 31, 2012 (in years)	2 years 1 month 25 days	2 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding at December 31, 2013	$ 57,583
Weighted- Average Remaining Contractual Life, Outstanding at December 31, 2013 (in years)	2 years 1 month 25 days	2 years 8 months 12 days
Exercisable at December 31, 2013 (in shares)	4,438,465
Weighted Average Exercise Price, Exercisable at December 31, 2013 (in dollars per share)	$ 61.88
Weighted-Average Remaining Contractual Life, Exercisable at December 31, 2013 (in years)	1 year 11 months 5 days
Aggregate intrinsic value, options exercisable at December 31, 2013	38,167
Vested or expected to vest
Vested or expected to vest (in shares)	5,366,212
Weighted- Average Exercise Price (in dollars per share)	$ 59.78
Weighted- Average Remaining Contractual Life (in years)	2 years 1 month 20 days
Aggregate Intrinsic Value	$ 56,548

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Acquisitions (Narrative) (Details) (USD $)	12 Months Ended						1 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended			3 Months Ended			12 Months Ended		3 Months Ended		3 Months Ended		12 Months Ended		0 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013 Enterprise and Service Provider division	Dec. 31, 2012 Enterprise and Service Provider division	Jan. 31, 2013 Zenprise	Dec. 31, 2013 Zenprise	Jul. 31, 2012 ByteMobile	Dec. 31, 2013 ByteMobile	Apr. 30, 2012 Podio	Apr. 30, 2012 Podio Product Related Technologies	Apr. 30, 2012 Podio Other	Sep. 30, 2012 2012 Other Acquisitions acquisitions	Jun. 30, 2012 2012 Other Acquisitions acquisitions	Mar. 31, 2012 2012 Other Acquisitions	Dec. 31, 2012 2012 Other Acquisitions	Dec. 31, 2011 2012 Other Acquisitions	Sep. 30, 2012 2012 Other Acquisitions Enterprise and Service Provider division acquisitions	Mar. 31, 2012 2012 Other Acquisitions Product Related Technologies	Dec. 31, 2013 2013 Other Acquisitions	Sep. 30, 2013 2013 Other Acquisitions	Dec. 31, 2013 2013 Other Acquisitions acquisitions	Sep. 30, 2013 2013 Other Acquisitions Maximum	Jan. 08, 2014 Subsequent Event [Member] Framehawk, Inc. [Member]
Business Acquisition [Line Items]
Total consideration in business acquisitions							$ 324,000,000		$ 399,500,000		$ 43,600,000			$ 5,300,000	$ 15,400,000	$ 24,600,000					$ 5,500,000	$ 5,300,000			$ 27,900,000
Contingent consideration amount																								3,000,000
Cash acquired from the acquisition							2,900,000		5,600,000		1,700,000				200,000	600,000									300,000
Acquisition transaction costs							600,000	100,000	2,100,000		500,000			200,000	400,000	500,000					200,000	200,000	200,000		100,000
Acquisition transaction costs expensed during period																	400,000	100,000
Unvested stock options assumed in business acquisition											127,668			13,487	66,459	13,481
Stock options converted and assumed (in shares)							285,817									12,017
Number of privately-held businesses acquired														2	2				1				2
Net adjustment to preliminary purchase price allocation										3,300,000
Goodwill acquired	251,468,000	[1]	283,860,000	[1]	248,800,000	257,379,000					24,500,000					22,800,000
Finite-lived Intangible assets acquired								$ 69,200,000		$ 248,900,000	$ 24,600,000	$ 20,700,000	$ 3,900,000							$ 11,000,000	$ 11,300,000		$ 11,300,000

[1] Amount primarily relates to acquisitions. See Note 3 for more information regarding the Company’s acquisitions.

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Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accounts Payable and Accrued Liabilities, Current [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses consist of the following:

	December 31,
	2013		2012
	(In thousands)
Accrued compensation and employee benefits	$	141,065	$	130,835
Other accrued expenses	116,541		126,300
Total	$	257,606	$	257,135

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Employee Stock-Based Compensation and Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Detail Of The Total Stock-Based Compensation Recognized By Income Statement Classification

The detail of the total stock-based compensation recognized by income statement classification is as follows (in thousands):

Income Statement Classifications	2013		2012		2011
Cost of services revenues	$	2,540	$	2,111	$	1,584
Research and development	63,448		54,616		31,763
Sales, marketing and services	65,549		51,519		31,354
General and administrative	52,404		41,694		28,208
Total	$	183,941	$	149,940	$	92,909

Schedule of Stock Option Activity

A summary of the status and activity of the Company’s fixed option awards is as follows:

Options	Number of Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2012	7,589,532		$	54.15	2.70
Assumed	285,817		11.85
Exercised	(2,168,531	)	33.97
Forfeited or expired	(299,841	)	60.90
Outstanding at December 31, 2013	5,406,977		59.64		2.15	$	57,583
Vested or expected to vest	5,366,212		59.78		2.14	$	56,548
Exercisable at December 31, 2013	4,438,465		61.88		1.93	$	38,167

Assumptions Used To Value Option Grants

The assumptions used to value options granted and/or assumed are as follows:

	Stock options granted or assumed during
	2013	2012	2011
Expected volatility factor	0.39	0.38 - 0.43	0.38 - 0.50
Approximate risk free interest rate	0.4%	0.5% - 0.7%	0.6% - 1.1%
Expected term (in years)	3.35	3.91	3.27 - 3.91
Expected dividend yield	0%	0%	0%

The grant date fair value of the non-vested performance stock unit awards was determined through the use of a Monte Carlo simulation model, which utilized multiple input variables that determined the probability of satisfying the market condition requirements applicable to each award as follows:

	March 2013 Grant		March 2012 Grant
Expected volatility factor	0.16 - 0.42		0.21 - 0.39
Risk free interest rate	0.33	%	0.47	%
Expected dividend yield	0	%	0	%

Schedule of Nonvested Stock Unit Activity

The following table summarizes the Company's non-vested stock unit activity for the year ended December 31, 2013:

	Number of Shares		Weighted- Average Fair Value at Grant Date
Non-vested stock units at December 31, 2012	3,607,561		$	74.70
Granted	2,765,386		71.84
Vested	(1,375,165	)	69.36
Forfeited	(365,803	)	76.16
Non-vested stock units at December 31, 2013	4,631,979		74.47

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Organization

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

ORGANIZATION

ORGANIZATION

Citrix Systems, Inc. ("Citrix" or the "Company"), is a Delaware corporation founded on April 17, 1989. Citrix is a leader in virtualization, networking and cloud infrastructure to enable new ways for people to work better. Citrix solutions help IT and service providers to build, manage and secure virtual and mobile workspaces that seamlessly deliver apps, desktops, data and services to virtually anyone, on any device, over any network or cloud.

Citrix markets and licenses its products directly to customers, over the Web, and through systems integrators ("SIs"), in addition to indirectly through value-added resellers ("VARs"), value-added distributors ("VADs"), original equipment manufacturers ("OEMs"), and service providers.

The Company’s revenues are derived from its Enterprise and Service Provider products, which primarily include its Mobile and Desktop products, Networking and Cloud products and related license updates and maintenance and professional services and from its Software as a Service ("SaaS") products, which primarily include Collaboration and Data Sharing, Remote Access and Remote IT Support products. Enterprise and Service Provider (formerly Infrastructure division) and SaaS constitute the Company's two reportable segments. See Note 11 for more information on the Company's segments.

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Lease Commitments

Lease commitments under non-cancelable operating leases with initial or remaining terms in excess of one year and sublease income associated with non-cancelable subleases, are as follows:

	Operating Leases		Sublease Income
	(In thousands)
Years ending December 31,
2014	$	60,982	$	255
2015	46,770		260
2016	39,353		227
2017	22,064		218
2018	18,536		203
Thereafter	88,885		—
Total	$	276,590	$	1,163

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Significant Accounting Policies (Property and Equipment) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Total property and equipment, net	$ 338,996,000	$ 303,294,000
Retirement of property and equipment	10,300,000	5,300,000
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	85,092,000	76,202,000
Estimated useful lives of property and equipment	40 years
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	204,110,000	178,948,000
Estimated useful lives of property and equipment	3 years
Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	316,902,000	259,225,000
Estimated useful lives of property and equipment	3 years
Equipment and furniture
Property, Plant and Equipment [Line Items]
Property and equipment, gross	105,145,000	86,362,000
Estimated useful lives of property and equipment	7 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	168,990,000	149,731,000
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	10 years
Depreciable assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	880,239,000	750,468,000
Less accumulated depreciation and amortization	(597,268,000)	(479,460,000)
Assets under construction
Property, Plant and Equipment [Line Items]
Property and equipment, gross	28,438,000	15,517,000
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 27,587,000	$ 16,769,000

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Accrued Expenses and Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accrued compensation and employee benefits	$ 141,065	$ 130,835
Other accrued expenses	116,541	126,300
Total	$ 257,606	$ 257,135

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Segment Information (Revenues By Product Grouping) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Net revenues	$ 802,420	$ 712,731	$ 730,384	$ 672,899	$ 739,996	$ 641,422	$ 615,210	$ 589,495	$ 2,918,434		$ 2,586,123		$ 2,206,392
Enterprise and Service Provider division
Segment Reporting Information [Line Items]
Net revenues									2,335,562		2,074,800		1,778,646
Enterprise and Service Provider division | Mobile and Desktop revenues
Segment Reporting Information [Line Items]
Net revenues									1,549,383	[1]	1,450,850	[1]	1,278,798	[1]
Enterprise and Service Provider division | Networking and Cloud revenues
Segment Reporting Information [Line Items]
Net revenues									634,598	[2]	496,608	[2]	385,518	[2]
Enterprise and Service Provider division | Professional services
Segment Reporting Information [Line Items]
Net revenues									138,879	[3]	119,061	[3]	91,496	[3]
Enterprise and Service Provider division | Other
Segment Reporting Information [Line Items]
Net revenues									12,702		8,281		22,834
SaaS division revenues
Segment Reporting Information [Line Items]
Net revenues									$ 582,872		$ 511,323		$ 427,746

[1] Mobile and Desktop revenues are primarily comprised of sales from the Company’s desktop and application virtualization products, XenDesktop and XenApp, and the Company's Mobility products, which include XenMobile and related license updates and maintenance and support.

[2] Networking and Cloud revenues are primarily comprised of sales from the Company’s cloud networking products, which include NetScaler, CloudBridge and ByteMobile Smart Capacity, and the Company’s cloud platform products which include XenServer, CloudPlatform and CloudPortal and related license updates and maintenance and support.

[3] Professional services revenues are primarily comprised of revenues from consulting services and product training and certification services.

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 280,740	$ 643,609
Short-term investments, available-for-sale	453,976	285,022
Accounts receivable, net of allowances of $5,354 and $6,448 at December 31, 2013 and 2012, respectively	654,821	630,956
Inventories, net	14,107	10,723
Prepaid expenses and other current assets	110,981	106,579
Current portion of deferred tax assets, net	48,470	36,846
Total current assets	1,563,095	1,713,735
Long-term investments, available-for-sale	855,700	595,313
Property and equipment, net	338,996	303,294
Goodwill	1,768,949	1,518,219
Other intangible assets, net	509,595	556,205
Long-term portion of deferred tax assets, net	115,418	43,097
Other assets	60,496	66,539
Total assets	5,212,249	4,796,402
Current liabilities:
Accounts payable	78,452	71,116
Accrued expenses and other current liabilities	257,606	257,135
Income taxes payable	29,322	49,346
Current portion of deferred revenues	1,098,681	965,276
Total current liabilities	1,464,061	1,342,873
Long-term portion of deferred revenues	313,059	232,719
Other liabilities	115,322	99,033
Commitments and contingencies
Stockholders' equity:
Preferred stock at $.01 par value: 5,000 shares authorized, none issued and outstanding	0	0
Common stock at $.001 par value: 1,000,000 shares authorized; 291,078 and 287,123 shares issued and outstanding at December 31, 2013 and 2012, respectively	291	287
Additional paid-in capital	3,974,297	3,691,111
Retained earnings	2,903,541	2,564,018
Accumulated other comprehensive income (loss)	4,951	(7,705)
Stockholders' equity before treasury stock	6,883,080	6,247,711
Less - common stock in treasury, at cost (107,789 and 100,781 shares at December 31, 2013 and 2012, respectively)	(3,563,273)	(3,125,934)
Total stockholders' equity	3,319,807	3,121,777
Total liabilities and stockholders' equity	$ 5,212,249	$ 4,796,402

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Acquisitions (Allocation of Total Purchase Prices) (Details) (USD $) In Thousands, unless otherwise specified					1 Months Ended			1 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Zenprise	Jan. 31, 2013 Zenprise Minimum	Jan. 31, 2013 Zenprise Maximum	Dec. 31, 2013 2013 Other Acquisitions	Jan. 31, 2013 2013 Other Acquisitions Minimum	Jan. 31, 2013 2013 Other Acquisitions Maximum	Dec. 31, 2013 ByteMobile	Dec. 31, 2013 ByteMobile Minimum	Dec. 31, 2013 ByteMobile Maximum
Purchase Price Allocation
Current assets				$ 10,943			$ 3,586			$ 57,796
Other assets				668			0			7,406
Property and equipment				431			0			2,484
Deferred tax assets, non-current				38,785			3,177			44,934
Intangible assets				69,200			11,300			248,900
Goodwill	1,768,949	1,518,219	1,239,120	247,273			4,195			221,914
Assets acquired				367,300			22,258			583,434
Current liabilities assumed				(8,475)			(3,950)			(62,313)
Deferred tax liabilities, current				0			(2,000)
Long-term liabilities assumed				(3,107)			(1,000)			(4,083)
Deferred tax liabilities, non-current				(28,725)			(1,699)			(111,904)
Net assets acquired				$ 326,993			$ 13,609			$ 405,134
Finite-lived intangible assets acquired, Asset Life					1 year	7 years		5 years	6 years		1 year	9 years

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Consolidated Statements of Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Income (loss)	Common Stock in Treasury	Non-Controlling Interest
Beginning balance at Dec. 31, 2010	$ 2,560,588	$ 278	$ 3,112,186	$ 1,855,149	$ 2,023	$ (2,416,645)	$ 7,597
Beginning balance (in shares) at Dec. 31, 2010		277,992,000
Treasury Stock, Shares						96,960,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock-based compensation plans	125,606	4	125,602	0	0	0	0
Shares issued under stock-based compensation plans (in shares)		4,472,000				0
Stock-based compensation expense	89,422	0	89,422	0	0	0	0
Common stock issued under employee stock purchase plan	21,099	1	21,098	0	0	0	0
Common stock issued under employee stock purchase plan (in shares)		310,000				0
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	50,003	0	50,003	0	0	0	0
Stock repurchases, net	(424,849)	0	0	0	0	(424,849)	0
Stock repurchases, net (in shares)	(6,275,470)	0				(6,276,000)
Restricted shares turned in for tax withholding	(13,262)	0	0	0	0	(13,262)	0
Restricted shares turned in for tax withholding (in shares)	(182,203)	0				(182,000)
Purchase of non-controlling interest	(20,163)	0	(13,258)	0	0	0	(6,905)
Other comprehensive loss, net of tax	(13,584)	0	0	0	(13,584)	0	0
Net income	355,630	0	0	356,322	0	0	(692)
Ending balance at Dec. 31, 2011	2,730,490	283	3,385,053	2,211,471	(11,561)	(2,854,756)	0
Ending balance (in shares) at Dec. 31, 2011		282,774,000
Treasury Stock, Shares	100,781,000					100,781,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock-based compensation plans	108,405	3	108,402	0	0	0	0
Shares issued under stock-based compensation plans (in shares)		3,983,000				0
Stock-based compensation expense	145,967	0	145,967	0	0	0	0
Common stock issued under employee stock purchase plan	24,889	1	24,888	0	0	0	0
Common stock issued under employee stock purchase plan (in shares)		366,000				0
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	24,839	0	24,839	0	0	0	0
Stock repurchases, net	(251,008)	0	0	0	0	(251,008)	0
Stock repurchases, net (in shares)	(3,550,817)	0				(3,551,000)
Restricted shares turned in for tax withholding	(20,170)	0	0	0	0	(20,170)	0
Restricted shares turned in for tax withholding (in shares)	(269,745)	0				(270,000)
Other	1,962	0	1,962	0	0	0	0
Other comprehensive loss, net of tax	3,856	0	0	0	3,856	0	0
Net income	352,547	0	0	352,547	0	0	0
Ending balance at Dec. 31, 2012	3,121,777	287	3,691,111	2,564,018	(7,705)	(3,125,934)	0
Ending balance (in shares) at Dec. 31, 2012		287,123,000
Treasury Stock, Shares	107,789,000					107,789,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock-based compensation plans	73,655	3	73,652	0	0	0	0
Shares issued under stock-based compensation plans (in shares)		3,545,000				0
Stock-based compensation expense	179,098	0	179,098	0	0	0	0
Common stock issued under employee stock purchase plan	30,145	1	30,144	0	0	0	0
Common stock issued under employee stock purchase plan (in shares)		410,000				0
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	(620)	0	(620)	0	0	0	0
Stock repurchases, net	(406,326)	0	0	0	0	(406,326)	0
Stock repurchases, net (in shares)	(6,563,986)	0				(6,564,000)
Restricted shares turned in for tax withholding	(31,013)	0	0	0	0	(31,013)	0
Restricted shares turned in for tax withholding (in shares)	(444,657)	0				(444,000)
Other	912	0	912	0	0	0	0
Other comprehensive loss, net of tax	12,656	0	0	0	12,656	0	0
Net income	339,523	0	0	339,523	0	0	0
Ending balance at Dec. 31, 2013	$ 3,319,807	$ 291	$ 3,974,297	$ 2,903,541	$ 4,951	$ (3,563,273)	$ 0
Ending balance (in shares) at Dec. 31, 2013		291,078,000

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Capital Stock (Narrative) (Details) (USD $)	1 Months Ended	12 Months Ended
	Oct. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity [Abstract]
Stock repurchase program, authorized amount	$ 500,000,000	$ 3,900,000,000.0
Available to repurchase common stock		429,300,000
Amount expended on share repurchases in open market transactions		406,326,000	251,008,000	424,849,000
Number of shares repurchased		6,563,986	3,550,817	6,275,470
Average per share price on share repurchases in open market transactions (in dollars per share)		$ 61.90	$ 70.69	$ 67.70
Total tax withholdings for share-based compensation (in shares)		444,657	269,745	182,203
Total tax withholdings for share-based compensation		$ 31,013,000	$ 20,170,000	$ 13,262,000
Preferred stock, shares authorized		5,000,000	5,000,000
Preferred stock, par value		$ 0.01	$ 0.01

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Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of the Fair Values of Derivative Instruments

Fair Values of Derivative Instruments

	Asset Derivatives				Liability Derivatives
	(In thousands)
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Derivatives Designated as Hedging Instruments	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value
Foreign currency forward contracts	Prepaid expenses and other current assets	$4,559	Prepaid expenses and other current assets	$4,157	Accrued expenses and other current liabilities	$1,578	Accrued expenses and other current liabilities	$4,162
	Asset Derivatives				Liability Derivatives
	(In thousands)
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value
Foreign currency forward contracts	Prepaid expenses and other current assets	$393	Prepaid expenses and other current assets	$448	Accrued expenses and other current liabilities	$165	Accrued expenses and other current liabilities	$52

Schedule of Effect of Derivative Instruments on Financial Performance

The Effect of Derivative Instruments on Financial Performance

	For the Year ended December 31,
	(In thousands)
Derivatives in Cash Flow Hedging Relationships	Amount of Gain Recognized in Other Comprehensive Income (Loss) (Effective Portion)				Location of Loss Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Effective Portion)	Amount of Loss Reclassified from Accumulated Other  Comprehensive Income (Loss) (Effective Portion)
	2013		2012			2013			2012
Foreign currency forward contracts	$	2,862	$	5,164	Operating expenses	$	(2,929	)	$	(5,817	)

	For the Year ended December 31,
	(In thousands)
Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative
		2013		2012
Foreign currency forward contracts	Other (expense) income, net	$	3,138	$	(1,341	)

Currency Forward Contracts Outstanding

As of December 31, 2013, the Company had the following net notional foreign currency forward contracts outstanding (in thousands):

Foreign Currency	Currency Denomination
Australian dollars	AUD 8,012
British pounds sterling	GBP 34,475
Canadian dollars	CAD 6,714
Chinese renminbi	CNY 81,250
Danish krone	DKK 1,500
Euro	EUR 27,820
Hong Kong dollars	HKD 51,063
Indian rupees	INR 1,201,622
Japanese yen	JPY 169,004
New Zealand dollars	NZD 300
Singapore dollars	SGD 12,600
Swiss francs	CHF 19,741

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Income Taxes (Deferred Tax Assets and Liabilities by Balance Sheet Classification (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets and Liabilities by Balance Sheet Classification [Abstract]
Deferred tax assets - current	$ 48,470	$ 36,846
Deferred tax liabilities - current	(364)	(876)
Deferred tax assets- non current	115,418	43,097
Deferred tax liabilities - non current	(13,127)	(19,756)
Total net deferred tax assets	$ 150,397	$ 59,311

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Recent Accounting Pronouncements

12 Months Ended

Dec. 31, 2013

New Accounting Pronouncement or Change in Accounting Principle, Retrospective Adjustments [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

RECENT ACCOUNTING PRONOUNCEMENTS

In July 2013, the Financial Accounting Standards Board issued an accounting standard update that provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carry forward, a similar tax loss, or a tax credit carry forward exists. Under the new standard, the Company's unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carry forward. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal year 2014 and applied prospectively. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

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Net Income Per Share Attributable To Citrix Systems, Inc. Stockholders (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Net Income Per Share Basic And Diluted

The following table sets forth the computation of basic and diluted net income per share attributable to Citrix Systems, Inc. stockholders (in thousands, except per share information):

	Year Ended December 31,
	2013		2012		2011
Numerator:
Net income attributable to Citrix Systems, Inc. stockholders	$	339,523	$	352,547	$	356,322
Denominator:
Denominator for basic earnings per share - weighted-average shares outstanding	186,672		186,722		187,315
Effect of dilutive employee stock awards:
Employee stock awards	1,573		2,407		3,326
Denominator for diluted earnings per share - weighted-average shares outstanding	188,245		189,129		190,641
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	$	1.82	$	1.89	$	1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	$	1.80	$	1.86	$	1.87
Anti-dilutive weighted-average shares	3,647		3,464		2,576

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Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2013

Valuation and Qualifying Accounts [Abstract]

VALUATION AND QUALIFYING ACCOUNTS

CITRIX SYSTEMS, INC.

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

	Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts					Deductions				Balance at End of Period
	(In thousands)
2013
Deducted from asset accounts:
Allowance for doubtful accounts	$	3,883	$	1,046	$	—				$	1,637	(2	)	$	3,292
Allowance for returns	2,564		—		4,473			(1	)	4,975		(4	)	2,062
Valuation allowance for deferred tax assets	18,185		—		8,280			(6	)	—				26,465
2012
Deducted from asset accounts:
Allowance for doubtful accounts	$	2,564	$	1,784	$	1,119		(3	)	$	1,584	(2	)	$	3,883
Allowance for returns	1,361		—		10,742			(1	)	9,539		(4	)	2,564
Valuation allowance for deferred tax assets	9,235		—		8,950			(6	)	—				18,185
2011
Deducted from asset accounts:
Allowance for doubtful accounts	$	3,409	$	266	$	1,468		(3	)	$	2,579	(2	)	$	2,564
Allowance for returns	850		—		5,542			(1	)	5,031		(4	)	1,361
Valuation allowance for deferred tax assets	13,999		—		(4,764		)	(5	)	—				9,235

⁽¹⁾  Charged against revenues.

⁽²⁾  Uncollectible accounts written off, net of recoveries.

⁽³⁾  Adjustments from acquisitions.

⁽⁴⁾  Credits issued for returns.

⁽⁵⁾  Related to deferred tax assets on unrealized losses and acquisitions.

⁽⁶⁾  Related to deferred tax assets on foreign tax credits, net operating loss carryforwards, and depreciation.

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Income Taxes (Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 43,904	$ 79,199
Additions based on tax positions related to the current year	13,694	2,459
Additions for tax positions of prior years	10,611	9,558
Reductions related to the expiration of statutes of limitations	(2,116)	(33,594)
Settlements	(2,301)	(13,718)
Ending balance	$ 63,792	$ 43,904

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Operating Activities
Net income	$ 339,523		$ 352,547		$ 355,630
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	139,541	[1]	114,574	[1]	71,131	[1]
Depreciation and amortization of property and equipment	127,959		100,299		88,124
Stock-based compensation expense	183,941		149,940		92,909
(Gain) loss on investments	(2,441)		(14,477)		1,343
Provision for doubtful accounts	1,046		1,784		266
Provision for product returns	4,473		10,743		5,541
Provision for inventory reserves	1,905		1,022		1,570
Deferred income tax benefit	(51,848)		(70,791)		(16,229)
Excess tax benefit from stock-based compensation, net	8,129		24,839		50,003
Tax effect of stock-based compensation	(12,552)		(35,374)		(51,659)
Effects of exchange rate changes on monetary assets and liabilities denominated in foreign currencies	5,888		1,706		1,895
Other non-cash items	434		1,178		4,733
Total adjustments to reconcile net income to net cash provided by operating activities	406,475		285,443		249,627
Changes in operating assets and liabilities, net of the effects of acquisitions:
Accounts receivable	(22,951)		(107,628)		(95,481)
Inventories	(5,591)		(2,024)		(3,097)
Prepaid expenses and other current assets	(862)		(9,195)		1,407
Other assets	5,076		(1,497)		(562)
Income taxes, net	(35,316)		(4,408)		25,180
Accounts payable	3,092		(426)		(11,758)
Accrued expenses and other current liabilities	22,515		45,135		(20,996)
Deferred revenues	201,455		216,798		168,994
Other liabilities	14,927		43,782		10,178
Total changes in operating assets and liabilities, net of the effects of acquisitions	182,345		180,537		73,865
Net cash provided by operating activities	928,343		818,527		679,122
Investing Activities
Purchases of available-for-sale investments	(1,703,976)		(1,435,367)		(1,360,677)
Proceeds from sales of available-for-sale investments	766,192		1,256,295		856,182
Proceeds from maturities of available-for-sale investments	504,314		437,991		652,939
Proceeds from the sales of cost method investments	12,067		24,252		0
Purchases of property and equipment	(162,889)		(122,958)		(111,932)
Purchases of cost method investments	(6,824)		(6,622)		(16,879)
Cash paid for acquisitions, net of cash acquired	(334,881)		(487,221)		(455,377)
Cash paid for licensing agreements and product related intangible assets	(12,153)		(27,760)		(15,437)
Other	0		3,450		0
Net cash used in investing activities	(938,150)		(357,940)		(451,181)
Financing Activities
Proceeds from issuance of common stock under stock-based compensation plans	73,655		108,406		125,606
Repayment of acquired debt	(2,061)		(24,346)		(11,561)
Excess tax benefit from stock-based compensation	12,552		35,374		51,659
Purchase of non-controlling interest	0		0		(17,207)
Stock repurchases, net	(406,326)		(251,008)		(424,849)
Cash paid for tax withholding on vested stock awards	(31,013)		(20,170)		(13,262)
Other	912		1,962		(3,000)
Net cash used in financing activities	(352,281)		(149,782)		(292,614)
Effect of exchange rate changes on cash and cash equivalents	(781)		(492)		1,807
Change in cash and cash equivalents	(362,869)		310,313		(62,866)
Cash and cash equivalents at beginning of period	643,609		333,296		396,162
Cash and cash equivalents at end of period	280,740		643,609		333,296
Supplemental Cash Flow Information
Cash paid for income taxes	92,672		32,355		12,195
Cash paid for interest	$ 127		$ 305		$ 139

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 5,354	$ 6,448
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	291,078,000	287,123,000
Common stock, shares outstanding	291,078,000	287,123,000
Treasury Stock, Shares	107,789,000	100,781,000

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Income Taxes

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The United States and foreign components of income before income taxes are as follows:

	2013		2012		2011
	(In thousands)
United States	$	142,085	$	200,802	$	176,824
Foreign	245,805		209,427		253,673
Total	$	387,890	$	410,229	$	430,497

The components of the provision for income taxes are as follows:

	2013			2012			2011
	(In thousands)
Current:
Federal	$	51,389		$	81,019		$	50,022
Foreign	37,221			30,059			29,169
State	11,605			17,395			11,905
Total current	100,215			128,473			91,096
Deferred:
Federal	(34,897		)	(64,960		)	(8,631		)
Foreign	(8,413		)	1,409			(4,792		)
State	(8,538		)	(7,240		)	(2,806		)
Total deferred	(51,848		)	(70,791		)	(16,229		)
Total provision	$	48,367		$	57,682		$	74,867

The following table presents the breakdown between current and non-current net deferred tax assets:

	December 31,
	2013			2012
	(In thousands)
Deferred tax assets - current	$	48,470		$	36,846
Deferred tax liabilities - current	(364		)	(876		)
Deferred tax assets- non current	115,418			43,097
Deferred tax liabilities - non current	(13,127		)	(19,756		)
Total net deferred tax assets	$	150,397		$	59,311

The significant components of the Company’s deferred tax assets and liabilities consisted of the following:

	December 31,
	2013			2012
	(In thousands)
Deferred tax assets:
Accruals and reserves	$	25,556		$	36,128
Deferred revenue	55,688			41,820
Tax credits	60,519			43,657
Net operating losses	103,329			89,856
Other	10,537			8,452
Stock based compensation	72,074			54,852
Depreciation and amortization	1,675			—
Valuation allowance	(26,465		)	(18,185		)
Total deferred tax assets	302,913			256,580
Deferred tax liabilities:
Depreciation and amortization	—			(40,159		)
Acquired technology	(136,258		)	(140,017		)
Prepaid expenses	(16,258		)	(17,093		)
Total deferred tax liabilities	(152,516		)	(197,269		)
Total net deferred tax assets	$	150,397		$	59,311

The authoritative guidance requires a valuation allowance to reduce the deferred tax assets reported if it is not more likely than not that some portion or all of the deferred tax assets will be realized. At December 31, 2013, the Company determined that a $26.5 million valuation allowance relating to deferred tax assets for net operating losses and tax credits was necessary.

The Company does not expect to remit earnings from its foreign subsidiaries. Undistributed earnings of the Company’s foreign subsidiaries amounted to approximately $1,238.0 million at December 31, 2013. Those earnings are considered to be permanently reinvested and, accordingly, no U.S. federal and state income taxes have been provided thereon. Upon distribution of those earnings in the form of dividends or otherwise, the Company could be subject to both U.S. income taxes (subject to an adjustment for foreign tax credits) and withholding taxes payable to various foreign countries. The Company maintains certain strategic management and operational activities in overseas subsidiaries and its foreign earnings are taxed at rates that are generally lower than in the United States.

At December 31, 2013, the Company had $220.0 million of remaining net operating loss carry forwards in the United States from acquisitions. The utilization of these net operating loss carry forwards are limited in any one year pursuant to Internal Revenue Code Section 382 and begin to expire in 2019. At December 31, 2013, the Company had $52.0 million of remaining net operating loss carry forwards in foreign jurisdictions that do not expire.

At December 31, 2013, the Company had research and development tax credit carry forwards of approximately $55.6 million that begin to expire in 2024.

A reconciliation of the Company’s effective tax rate to the statutory federal rate is as follows:

	Year Ended December 31,
	2013		2012		2011
Federal statutory taxes	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	1.2		1.9		1.7
Foreign operations	(14.8	)	(10.2	)	(14.5	)
Permanent differences	(1.1	)	(2.0	)	1.2
Tax credits	(10.9	)	(4.7	)	(7.1	)
Stock option compensation	0.4		0.1		0.1
Change in accruals for uncertain tax positions	3.3		(5.3	)	1.4
Other	(0.6	)	(0.7	)	(0.4	)
	12.5	%	14.1	%	17.4	%

The Company’s effective tax rate generally differs from the U.S. federal statutory rate of 35% due primarily to lower tax rates on earnings generated by the Company’s foreign operations that are taxed primarily in Switzerland. The Company has not provided for U.S. taxes for those earnings because it plans to reinvest all of those earnings indefinitely outside the United States. It was not practicable to determine the amount of unrecognized deferred tax liability for temporary differences related to investments in foreign subsidiaries.

The Company and certain of its subsidiaries are subject to U.S. federal income taxes, as well as income taxes of multiple state and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years prior to 2009.

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2013 and 2012 is as follows (in thousands):

Balance at January 1, 2012	$	79,199
Additions based on tax positions related to the current year	2,459
Additions for tax positions of prior years	9,558
Reductions related to the expiration of statutes of limitations	(33,594		)
Settlements	(13,718		)
Balance at December 31, 2012	43,904
Additions based on tax positions related to the current year	13,694
Additions for tax positions of prior years	10,611
Reductions related to the expiration of statutes of limitations	(2,116		)
Settlements	(2,301		)
Balance at December 31, 2013	$	63,792

The Company's unrecognized tax benefits may change significantly over the next 12 months.

The Company recognizes interest accrued related to unrecognized tax benefits and penalties in income tax expense. During the year ended December 31, 2013, the Company recognized $0.8 million of expense related to interest and penalties. The Company has no amounts accrued for the payment of interest and penalties at December 31, 2013.

The federal research and development credit expired on December 31, 2011. On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law. Under this act, the federal research and development credit was retroactively extended for amounts paid or incurred after December 31, 2011 and before January 1, 2014. The effects of these changes in the tax law will result in net tax benefits of approximately $10.7 million, which were recognized in 2013, the year in which the law was enacted.

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Document and Entity Information Document (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 14, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Trading Symbol	ctxs
Entity Registrant Name	CITRIX SYSTEMS INC
Entity Central Index Key	0000877890
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		183,753,307
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 11,044,768,169

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Segment Information

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

The Enterprise and Service Provider division and the SaaS division constitute the Company’s two reportable segments. The Company does not engage in intercompany revenue transfers between segments. The Company’s chief operating decision maker (“CODM”) evaluates the Company’s performance based primarily on profitability from its Enterprise and Service Provider division products and SaaS division products. Segment profit for each segment includes certain research and development, sales, marketing, general and administrative expenses directly attributable to the segment as well as other corporate costs allocated to the segment and excludes certain expenses that are managed outside of the reportable segments. Costs excluded from segment profit primarily consist of certain restructuring charges, stock-based compensation costs, amortization of product related intangible assets, amortization of other intangible assets, net interest and Other (expense) income, net. Accounting policies of the Company’s segments are the same as its consolidated accounting policies.

International revenues (sales outside of the United States) accounted for approximately 45.4%, 45.3% and 43.2% of the Company’s net revenues for the year ended December 31, 2013, 2012, and 2011, respectively. Net revenues and segment profit for 2013, 2012 and 2011 classified by the Company’s reportable segments, are presented below:

	2013			2012			2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division	$	2,335,562		$	2,074,800		$	1,778,646
SaaS division	582,872			511,323			427,746
Consolidated	$	2,918,434		$	2,586,123		$	2,206,392
Segment profit:
Enterprise and Services Provider division	$	588,138		$	562,794		$	504,883
SaaS division	116,061			92,498			76,147
Unallocated expenses (1):
Amortization of intangible assets	(139,541		)	(114,574		)	(71,131		)
Restructuring	—			—			(24		)
Net interest and other income	7,173			19,451			13,531
Stock-based compensation	(183,941		)	(149,940		)	(92,909		)
Consolidated income before income taxes	$	387,890		$	410,229		$	430,497

⁽¹⁾  Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

Identifiable assets classified by the Company’s reportable segments are shown below. Long-lived assets consist of property and equipment, net, and are shown below.

	December 31,
	2013		2012
	(In thousands)
Identifiable assets:
Enterprise and Service Provider division	$	4,662,724	$	4,246,292
SaaS division	549,525		550,110
Total identifiable assets	$	5,212,249	$	4,796,402

	December 31,
	2013		2012
	(In thousands)
Long-lived assets, net:
United States	$	258,114	$	231,812
United Kingdom	29,382		30,633
Other countries	51,500		40,849
Total long-lived assets, net	$	338,996	$	303,294

The increases in identifiable assets are primarily due to goodwill and intangible assets recorded in conjunction with the Company's 2013 Acquisitions. See Note 3 for additional information regarding the Company’s acquisitions.

In fiscal years 2013, 2012 and 2011, one distributor, Ingram Micro, accounted for 14%, 16% and 17%, respectively, of the Company’s total net revenues. The Company’s distributor arrangements with Ingram Micro consist of several non-exclusive, independently negotiated agreements with its subsidiaries, each of which cover different countries or regions. Each of these agreements is separately negotiated and is independent of any other contract (such as a master distribution agreement), one of which was individually responsible for over 10% of the Company’s total net revenues in each of the last three fiscal years. In fiscal years 2013, 2012 and 2011, there were no resellers that accounted for over 10% of the Company’s total net revenues. Total net revenues associated with Ingram Micro are included in the Company's Enterprise and Service Provider division.

Revenues by product grouping for the Company’s Enterprise and Service Provider division and SaaS division were as follows for the years ended:

	December 31,
	2013		2012		2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division
Mobile and Desktop revenues(1)	$	1,549,383	$	1,450,850	$	1,278,798
Networking and Cloud revenues(2)	634,598		496,608		385,518
Professional services(3)	138,879		119,061		91,496
Other	12,702		8,281		22,834
Total Enterprise and Service Provider division revenues	2,335,562		2,074,800		1,778,646
SaaS division revenues	582,872		511,323		427,746
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392

(1) Mobile and Desktop revenues are primarily comprised of sales from the Company’s desktop and application virtualization products, XenDesktop and XenApp, and the Company's Mobility products, which include XenMobile and related license updates and maintenance and support.

(2) Networking and Cloud revenues are primarily comprised of sales from the Company’s cloud networking products, which include NetScaler, CloudBridge and ByteMobile Smart Capacity, and the Company’s cloud platform products which include XenServer, CloudPlatform and CloudPortal and related license updates and maintenance and support.

(3) Professional services revenues are primarily comprised of revenues from consulting services and product training and certification services.

Revenues by Geographic Location

The following table presents revenues by segment and geographic location, for the years ended:

	December 31,
	2013		2012		2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division
Americas	$	1,263,673	$	1,106,801	$	993,062
EMEA	785,862		691,111		576,953
Asia-Pacific	286,027		276,888		208,631
Total Enterprise and Service Provider division revenues	2,335,562		2,074,800		1,778,646
SaaS division
Americas	488,307		433,263		367,260
EMEA	73,529		63,484		50,711
Asia-Pacific	21,036		14,576		9,775
Total SaaS division revenues	582,872		511,323		427,746
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392

Export revenue represents shipments of finished goods and services from the United States to international customers, primarily in Latin America and Canada. Shipments from the United States to international customers for 2013, 2012 and 2011 were $215.3 million, $127.4 million and $106.0 million, respectively.

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Comprehensive Income (Reclassifications out of Accumulated Other Comprehensive Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized net gain on available-for-sale securities	$ (1,021)		$ 9,299	$ (288)
Unrealized net losses on cash flow hedges	(2,034,922)		(1,791,208)	(1,495,827)
Consolidated net income	339,523		352,547	355,630
Amount reclassified from Accumulated other comprehensive income (loss), net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Consolidated net income	(2,726)
Amount reclassified from Accumulated other comprehensive income (loss), net of tax | Unrealized net gain on available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized net gain on available-for-sale securities	203
Amount reclassified from Accumulated other comprehensive income (loss), net of tax | Unrealized net losses on cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized net losses on cash flow hedges	$ (2,929)	[1]

[1] Operating expenses amounts allocated to Research and development, Sales, marketing and services, and General and administrative are not individually significant.

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Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Revenues:
Product and licenses	$ 891,630		$ 830,645		$ 744,513
Software as a service	582,872		511,323		430,213
License updates and maintenance	1,305,053		1,125,094		940,181
Professional services	138,879		119,061		91,485
Total net revenues	2,918,434		2,586,123		2,206,392
Cost of net revenues:
Cost of product and license revenues	114,932		96,962		74,393
Cost of services and maintenance revenues	289,990		227,150		164,465
Amortization of product related intangible assets	97,873		80,025		54,741
Total cost of net revenues	502,795		404,137		293,599
Gross margin	2,415,639		2,181,986		1,912,793
Operating expenses:
Research and development	516,338		450,571		380,674
Sales, marketing and services	1,216,680		1,060,829		885,066
General and administrative	260,236		245,259		213,673
Amortization of other intangible assets	41,668		34,549		16,390
Restructuring	0	[1]	0	[1]	24	[1]
Total operating expenses	2,034,922		1,791,208		1,495,827
Income from operations	380,717		390,778		416,966
Interest income	8,194		10,152		13,819
Other (expense) income, net	(1,021)		9,299		(288)
Income before income taxes	387,890		410,229		430,497
Income taxes	48,367		57,682		74,867
Consolidated net income	339,523		352,547		355,630
Less: Net loss attributable to non-controlling interest	0		0		692
Net income attributable to Citrix Systems, Inc.	$ 339,523		$ 352,547		$ 356,322
Net income per share attributable to Citrix Systems, Inc. stockholders:
Net income per share attributable to Citrix Systems, Inc. stockholders - basic (in dollars per share)	$ 1.82		$ 1.89		$ 1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted (in dollars per share)	$ 1.80		$ 1.86		$ 1.87
Weighted average shares outstanding:
Basic (in shares)	186,672		186,722		187,315
Diluted (in shares)	188,245		189,129		190,641

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

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Fair Value Measurements

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

The authoritative guidance defines fair value as an exit price, representing the amount that would either be received to sell an asset or be paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

• Level 1. Observable inputs such as quoted prices in active markets for identical assets or liabilities;

• Level 2. Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and

• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Available-for-sale securities included in Level 2 are valued utilizing inputs obtained from an independent pricing service (the “Service”) which uses quoted market prices for identical or comparable instruments rather than direct observations of quoted prices in active markets. The Service gathers observable inputs for all of the Company’s fixed income securities from a variety of industry data providers including, for example, large custodial institutions and other third-party sources. Once the observable inputs are gathered by the Service, all data points are considered and an average price is determined. The Service’s providers utilize a variety of inputs to determine their quoted prices. These inputs may include interest rates, known historical trades, yield curve information, benchmark data, prepayment speeds, credit quality and broker/dealer quotes. Substantially all of the Company’s available-for-sale investments are valued utilizing inputs obtained from the Service and accordingly are categorized as Level 2 in the table below. The Company periodically independently assesses the pricing obtained from the Service and historically has not adjusted the Service's pricing as a result of this assessment. Available-for-sale securities are included in Level 3 when relevant observable inputs for a security are not available.

The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy. In certain instances, the inputs used to measure fair value may meet the definition of more than one level of the fair value hierarchy. The input with the lowest level priority is used to determine the applicable level in the fair value hierarchy.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	As of December 31, 2013		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash and cash equivalents:
Cash	$	227,528	$	227,528	$	—	$	—
Money market funds	52,823		52,823		—		—
Corporate securities	389		—		389		—
Available-for-sale securities:
Agency securities	454,750		—		454,750		—
Corporate securities	644,091		—		633,801		10,291
Municipal securities	53,756		—		53,756		—
Government securities	157,079		—		157,079		—
Prepaid expenses and other current assets:
Foreign currency derivatives	4,952		—		4,952		—
Total assets	$	1,595,368	$	280,351	$	1,304,727	$	10,291
Accrued expenses and other current liabilities:
Foreign currency derivatives	1,743		—		1,743		—
Total liabilities	$	1,743	$	—	$	1,743	$	—

	As of December 31, 2012		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash and cash equivalents:
Cash	$	503,614	$	503,614	$	—	$	—
Money market funds	123,519		123,519		—		—
Corporate securities	16,476		—		16,476		—
Available-for-sale securities:
Agency securities	402,707		—		402,707		—
Corporate securities	405,322		—		401,981		3,341
Municipal securities	32,313		—		32,313		—
Government securities	39,993		—		39,993		—
Prepaid expenses and other current assets:
Foreign currency derivatives	4,157		—		4,157		—
Total assets	$	1,528,101	$	627,133	$	897,627	$	3,341
Accrued expenses and other current liabilities:
Foreign currency derivatives	4,162		—		4,162		—
Total liabilities	$	4,162	$	—	$	4,162	$	—

The Company’s fixed income available-for-sale security portfolio generally consists of high quality, investment grade securities from diverse issuers with a minimum credit rating of A-/A3 and a minimum weighted-average credit rating of AA-/Aa3. The Company values these securities based on pricing from the Service, whose sources may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value, and accordingly, the Company classifies all of its fixed income available-for-sale securities as Level 2.

The Company measures its cash flow hedges, which are classified as Prepaid expenses and other current assets and Accrued expenses and other current liabilities, at fair value based on indicative prices in active markets (Level 2 inputs).

Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)

The Company has invested in convertible debt securities of certain early-stage entities that are classified as available-for-sale investments. As quoted prices in active markets or other observable inputs were not available for these investments, in order to measure them at fair value, the Company utilized a discounted cash flow model using a discount rate reflecting the market risk inherent in holding securities of an early-stage enterprise, adjusted by the probability-weighted exit possibilities associated with the convertible debt securities. This methodology required the Company to make assumptions that were not directly or indirectly observable regarding the fair value of the convertible debt securities; accordingly they are a Level 3 valuation and included in the table below.

	Investments
	(in thousands)
Balance at December 31, 2012	$	3,341
Purchases of Level 3 securities	9,700
Transfers out of Level 3	(2,750		)
Balance at December 31, 2013	$	10,291

Transfers out of Level 3 relate to certain of the Company's investments in convertible debt securities of early-stage entities that were previously classified as available-for-sale investments to cost method investments upon conversion to equity ownership, which are included in Other assets in the accompanying consolidated balance sheets.

Assets Measured at Fair Value on a Non-recurring Basis Using Significant Unobservable Inputs (Level 3)

During 2013 and 2012, certain cost method investments with a combined carrying value of $9.3 million and $13.0 million, respectively, were determined to be impaired and have been written down to their fair values of $5.6 million and $9.5 million, respectively, resulting in impairment charges of $3.7 million and $3.5 million, respectively. The impairment charges are included in Other (expense) income, net in the accompanying consolidated financial statements for the years ended December 31, 2013 and 2012. In determining the fair value of cost method investments, the Company considers many factors including but not limited to operating performance of the investee, the amount of cash that the investee has on-hand, the ability to obtain additional financing and the overall market conditions in which the investee operates. The fair value of the cost method investment represents a Level 3 valuation as the assumptions used in valuing this investment were not directly or indirectly observable. See Note 4 for more information regarding cost method investments.

Additional Disclosures Regarding Fair Value Measurements

The carrying value of accounts receivable, accounts payable and accrued expenses and other current liabilities approximate their fair value due to the short maturity of these items.

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Investments

12 Months Ended

Dec. 31, 2013

Investments [Abstract]

INVESTMENTS

INVESTMENTS

Available-for-sale Investments

Investments in available-for-sale securities at fair value were as follows for the periods ended (in thousands):

	December 31, 2013									December 31, 2012
Description of the Securities	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Agency securities	$	453,922	$	1,177	$	(349	)	$	454,750	$	400,365	$	2,347	$	(5	)	$	402,707
Corporate securities	643,360		947		(216		)	644,091		404,546		947		(171		)	405,322
Municipal securities	53,698		81		(23		)	53,756		32,214		114		(15		)	32,313
Government securities	156,930		196		(47		)	157,079		39,863		131		(1		)	39,993
Total	$	1,307,910	$	2,401	$	(635	)	$	1,309,676	$	876,988	$	3,539	$	(192	)	$	880,335

The change in net unrealized gains (losses) on available-for-sale securities recorded in Other comprehensive income (loss) includes unrealized gains (losses) that arose from changes in market value of specifically identified securities that were held during the period, gains (losses) that were previously unrealized, but have been recognized in current period net income due to sales, as well as prepayments of available-for-sale investments purchased at a premium. This reclassification has no effect on total comprehensive income or equity and was not material for all periods presented. See Note 14 for more information related to comprehensive income.

The average remaining maturities of the Company’s short-term and long-term available-for-sale investments at December 31, 2013 were approximately five months and three years, respectively.

Realized Gains and Losses on Available-for-sale Investments

For the years ended December 31, 2013 and 2012, the Company had realized gains on the sales of available-for-sale investments of $3.0 million and $4.1 million, respectively. For the years ended December 31, 2013 and 2012, the Company had realized losses on available-for-sale investments of $2.7 million and $0.8 million, respectively, primarily related to prepayments at par of securities purchased at a premium. All realized gains and losses related to the sales of available-for-sale investments are included in Other (expense) income, net, in the accompanying consolidated statements of income.

The Company continues to monitor its overall investment portfolio and if the credit ratings of the issuers of its investments deteriorate or if the issuers experience financial difficulty, including bankruptcy, the Company may be required to make adjustments to the carrying value of the securities in its investment portfolio and recognize impairment charges for declines in fair value that are determined to be other-than-temporary.

Other-Than-Temporary Impairment on Available-for-Sale Investments

There were no other-than-temporarily impaired available-for-sale investments during the twelve months ended December 31, 2013. During 2012, one of the Company’s available-for-sale investments with a carrying amount of $5.0 million was determined to be other-than-temporarily impaired. As a result of this determination, the investment was written down to its fair value of $2.5 million, resulting in an impairment charge of $2.5 million. The impairment charge is included in Other (expense) income, net in the accompanying consolidated statements of income.

Unrealized Losses on Available-for-Sale Investments

The gross unrealized losses on the Company’s available-for-sale investments that are not deemed to be other-than-temporarily impaired were $0.6 million and $0.2 million as of December 31, 2013 and 2012, respectively. Because the Company does not intend to sell any of its investments in an unrealized loss position and it is more likely than not that it will not be required to sell the securities before the recovery of its amortized cost basis, which may not occur until maturity, it does not consider the securities to be other-than-temporarily impaired.

Cost Method Investments

The Company held direct investments in privately-held companies of approximately $24.3 million and $26.2 million as of December 31, 2013 and 2012, respectively, which are accounted for based on the cost method and are included in Other assets in the accompanying consolidated balance sheets. The Company periodically reviews these investments for impairment. If the Company determines that an other-than-temporary impairment has occurred, it will write-down the investment to its fair value. During 2013 and 2012, certain companies in which the Company held direct investments were acquired by third parties and as a result of these sales transactions the Company recorded gains of $6.0 million and $16.5 million, respectively, which was included in Other (expense) income, net in the accompanying consolidated statements of income. The Company determined that certain cost method investments were impaired during 2013, 2012 and 2011 and recorded a total charge of $3.7 million, $3.5 million, and $3.5 million, respectively, which is included in Other (expense) income, net in the accompanying consolidated statements of income. See Note 5 for more information.

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Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data [Abstract]

QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

CITRIX SYSTEMS, INC.

SUPPLEMENTAL FINANCIAL INFORMATION

QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2013
Net revenues	$	672,899	$	730,384	$	712,731	$	802,420	$	2,918,434
Gross margin	557,985		603,144		588,798		665,712		2,415,639
Income from operations	56,608		75,888		87,367		160,854		380,717
Net income attributable to Citrix Systems, Inc.	59,688		64,461		76,730		138,644		339,523
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	0.32		0.34		0.41		0.75		1.82
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	0.32		0.34		0.41		0.74		1.80
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2012
Net revenues	$	589,495	$	615,210	$	641,422	$	739,996	$	2,586,123
Gross margin	503,152		520,852		535,354		622,628		2,181,986
Income from operations	80,750		82,192		82,415		145,421		390,778
Net income attributable to Citrix Systems, Inc.	68,267		92,006		78,245		114,029		352,547
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	0.37		0.49		0.42		0.61		1.89
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	0.36		0.49		0.41		0.60		1.86

The sum of the quarterly net income per share amounts do not add to the annual earnings per share amount due to the weighting of common and common equivalent shares outstanding during each of the respective periods.

The Consolidated Statement of Cash Flows for the year ended December 31, 2013 reflects an adjustment of approximately $17.3 million made to the captions “Excess tax benefit from stock based compensation” and “Income taxes, net” for the three months ended March 31, 2013. Accordingly, the adjusted net cash provided by operating activities and net cash used in financing activities for the three months ended March 31, 2013 is approximately $266.6 million and $28.9 million, respectively.

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Derivative Financial Instruments

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE FINANCIAL INSTRUMENTS

DERIVATIVE FINANCIAL INSTRUMENTS

Derivatives Designated as Hedging Instruments

As of December 31, 2013, the Company’s derivative assets and liabilities primarily resulted from cash flow hedges related to its forecasted operating expenses transacted in local currencies. A substantial portion of the Company’s overseas expenses are and will continue to be transacted in local currencies. To protect against fluctuations in operating expenses and the volatility of future cash flows caused by changes in currency exchange rates, the Company has established a program that uses foreign exchange forward contracts to hedge its exposure to these potential changes. The terms of these instruments, and the hedged transactions to which they relate, generally do not exceed twelve months and the maximum term is eighteen months.

Generally, when the dollar is weak, foreign currency denominated expenses will be higher, and these higher expenses will be partially offset by the gains realized from the Company’s hedging contracts. Conversely, if the dollar is strong, foreign currency denominated expenses will be lower. These lower expenses will in turn be partially offset by the losses incurred from the Company’s hedging contracts. The change in the derivative component in Accumulated other comprehensive income (loss) includes unrealized gains or losses that arose from changes in market value of the effective portion of derivatives that were held during the period, and gains or losses that were previously unrealized but have been recognized in the same line item as the forecasted transaction in current period net income due to termination or maturities of derivative contracts. This reclassification has no effect on total comprehensive income or equity.

The total cumulative unrealized gain on cash flow derivative instruments was $2.9 million and nil at December 31, 2013 and 2012, respectively, and is included in Accumulated other comprehensive income (loss) in the accompanying consolidated balance sheets. The net unrealized gain as of December 31, 2013 is expected to be recognized in income over the next twelve months at the same time the hedged items are recognized in income.

Derivatives not Designated as Hedges

A substantial portion of the Company’s overseas assets and liabilities are and will continue to be denominated in local currencies. To protect against fluctuations in earnings caused by changes in currency exchange rates when remeasuring the Company’s balance sheet, it utilizes foreign exchange forward contracts to hedge its exposure to this potential volatility.

These contracts are not designated for hedge accounting treatment under the authoritative guidance. Accordingly, changes in the fair value of these contracts are recorded in Other (expense) income, net.

Fair Values of Derivative Instruments

	Asset Derivatives				Liability Derivatives
	(In thousands)
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Derivatives Designated as Hedging Instruments	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value
Foreign currency forward contracts	Prepaid expenses and other current assets	$4,559	Prepaid expenses and other current assets	$4,157	Accrued expenses and other current liabilities	$1,578	Accrued expenses and other current liabilities	$4,162
	Asset Derivatives				Liability Derivatives
	(In thousands)
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value	Balance Sheet Location	Fair Value
Foreign currency forward contracts	Prepaid expenses and other current assets	$393	Prepaid expenses and other current assets	$448	Accrued expenses and other current liabilities	$165	Accrued expenses and other current liabilities	$52

The Effect of Derivative Instruments on Financial Performance

	For the Year ended December 31,
	(In thousands)
Derivatives in Cash Flow Hedging Relationships	Amount of Gain Recognized in Other Comprehensive Income (Loss) (Effective Portion)				Location of Loss Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Effective Portion)	Amount of Loss Reclassified from Accumulated Other  Comprehensive Income (Loss) (Effective Portion)
	2013		2012			2013			2012
Foreign currency forward contracts	$	2,862	$	5,164	Operating expenses	$	(2,929	)	$	(5,817	)

There was no material ineffectiveness in the Company’s foreign currency hedging program in the periods presented.

	For the Year ended December 31,
	(In thousands)
Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative
		2013		2012
Foreign currency forward contracts	Other (expense) income, net	$	3,138	$	(1,341	)

Outstanding Foreign Currency Forward Contracts

As of December 31, 2013, the Company had the following net notional foreign currency forward contracts outstanding (in thousands):

Foreign Currency	Currency Denomination
Australian dollars	AUD 8,012
British pounds sterling	GBP 34,475
Canadian dollars	CAD 6,714
Chinese renminbi	CNY 81,250
Danish krone	DKK 1,500
Euro	EUR 27,820
Hong Kong dollars	HKD 51,063
Indian rupees	INR 1,201,622
Japanese yen	JPY 169,004
New Zealand dollars	NZD 300
Singapore dollars	SGD 12,600
Swiss francs	CHF 19,741

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Capital Stock

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

CAPITAL STOCK

CAPITAL STOCK

Stock Repurchase Programs

The Company’s Board of Directors authorized an ongoing stock repurchase program with a total repurchase authority granted to the Company of $3.9 billion, of which $500.0 million was approved in October 2013. The Company may use the approved dollar authority to repurchase stock at any time until the approved amount is exhausted. The objective of the Company’s stock repurchase program is to improve stockholders’ returns. At December 31, 2013, approximately $429.3 million was available to repurchase common stock pursuant to the stock repurchase program. All shares repurchased are recorded as treasury stock in the Company's consolidated balance sheets. A portion of the funds used to repurchase stock over the course of the program was provided by proceeds from employee stock option exercises and the related tax benefit.

The Company is authorized to make open market purchases of its common stock using general corporate funds through open market purchases or pursuant to a Rule 10b5-1 plan.

During the year ended December 31, 2013, the Company expended approximately $406.3 million on open market purchases, repurchasing 6,563,986 shares of outstanding common stock at an average price of $61.90.

During the year ended December 31, 2012, the Company expended approximately $251.0 million on open market purchases, repurchasing 3,550,817 shares of outstanding common stock at an average price of $70.69.

During the year ended December 31, 2011, the Company expended approximately $424.8 million on open market purchases, repurchasing 6,275,470 shares of outstanding common stock at an average price of $67.70.

Shares for Tax Withholding

During the years ended December 31, 2013, 2012 and 2011, the Company withheld 444,657 shares, 269,745 shares and 182,203 shares, respectively, from stock units that vested. Amounts withheld to satisfy minimum tax withholding obligations that arose on the vesting of stock units was $31.0 million, $20.2 million and $13.3 million, for 2013, 2012 and 2011, respectively. These shares are reflected as treasury stock in the Company's consolidated balance sheets and statements of equity and the related cash outlays reduce the Company's total stock repurchase authority.

Preferred Stock

The Company is authorized to issue 5,000,000 shares of preferred stock, $0.01 par value per share. No shares of such preferred stock were issued and outstanding at December 31, 2013 or 2012.

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Commitments and Contingencies (Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 17, 2012 SSL Services
Loss Contingencies [Line Items]
Rental expense	$ 70,900,000	$ 65,100,000	$ 56,500,000
Sublease Income	300,000	200,000	200,000
Total operating lease obligations remaining	276,590,000
Loss Contingency, Information about Litigation Matters [Abstract]
Final damages awarded, confirmed by court				10,000,000
Enhanced damages awarded				5,000,000
Prejudgment interest on damages awarded				5,000,000
Purchase obligations anticipated for 2014	13,100,000
Contingent obligations to purchase inventory	$ 18,200,000

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Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2013

Accounts Payable and Accrued Liabilities, Current [Abstract]

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

Accrued expenses consist of the following:

	December 31,
	2013		2012
	(In thousands)
Accrued compensation and employee benefits	$	141,065	$	130,835
Other accrued expenses	116,541		126,300
Total	$	257,606	$	257,135

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Employee Stock-Based Compensation and Benefit Plans

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

EMPLOYEE STOCK-BASED COMPENSATION AND BENEFIT PLANS

EMPLOYEE STOCK-BASED COMPENSATION AND BENEFIT PLANS

Plans

The Company’s stock-based compensation program is a long-term retention program that is intended to attract and reward talented employees and align stockholder and employee interests. As of December 31, 2013, the Company had two stock-based compensation plans under which it was granting stock options and non-vested stock units. The Company is currently granting stock-based awards from its Amended and Restated 2005 Equity Incentive Plan (as amended, the “2005 Plan”) and its Amended and Restated 2005 Employee Stock Purchase Plan (as amended, the “2005 ESPP”). In February 2014, the Company's Board of Directors approved the 2014 Equity Incentive Plan, which is subject to stockholder approval at the Company Annual Meeting of Stockholders on May 22, 2014. There will be no grants under this plan until the plan is approved by the Company's stockholders. In connection with certain of the Company’s acquisitions, the Company has assumed certain plans from acquired companies. The Company’s Board of Directors has provided that no new awards will be granted under the Company’s acquired stock plans. Awards previously granted under the Company's superseded and expired stock plans that are still outstanding typically expire ten years from the date of grant and will continue to be subject to all the terms and conditions of such plans, as applicable. The Company’s superseded and expired stock plan includes the Amended and Restated 1995 Stock Plan.

Under the terms of the 2005 Plan, the Company is authorized to grant incentive stock options (“ISOs”), non-qualified stock options (“NSOs”), non-vested stock, non-vested stock units, stock appreciation rights (“SARs”), and performance units and to make stock-based awards to full and part-time employees of the Company and its subsidiaries or affiliates, where legally eligible to participate, as well as to consultants and non-employee directors of the Company. Currently, the 2005 Plan provides for the issuance of a maximum of 48,600,000 shares of common stock. Under the 2005 Plan, ISOs must be granted at exercise prices no less than fair market value on the date of grant, except for ISOs granted to employees who own more than 10% of the Company’s combined voting power, for which the exercise prices must be no less than 110% of the fair market value at the date of grant. NSOs and SARs must be granted at no less than fair market value on the date of grant, or in the case of SARs in tandem with options, at the exercise price of the related option. Non-vested stock awards may be granted for such consideration in cash, other property or services, or a combination thereof, as determined by the Company’s Compensation Committee of its Board of Directors. Stock-based awards are generally exercisable or issuable upon vesting. The Company’s policy is to recognize compensation cost for awards with only service conditions and a graded vesting schedule on a straight-line basis over the requisite service period for the entire award. As of December 31, 2013, there were 26,960,367 shares of common stock reserved for issuance pursuant to the Company’s stock-based compensation plans and the Company had authorization under its 2005 Plan to grant 16,605,208 additional stock-based awards.

Under the 2005 ESPP, all full-time and certain part-time employees of the Company are eligible to purchase common stock of the Company twice per year at the end of a six-month payment period (a “Payment Period”). During each Payment Period, eligible employees who so elect may authorize payroll deductions in an amount no less than 1% nor greater than 10% of his or her base pay for each payroll period in the Payment Period. At the end of each Payment Period, the accumulated deductions are used to purchase shares of common stock from the Company up to a maximum of 12,000 shares for any one employee during a Payment Period. Shares are purchased at a price equal to 85% of the fair market value of the Company’s common stock on the last business day of a Payment Period. Employees who, after exercising their rights to purchase shares of common stock in the 2005 ESPP, would own shares representing 5% or more of the voting power of the Company’s common stock, are ineligible to participate under the 2005 ESPP. The 2005 ESPP provides for the issuance of a maximum of 10,000,000 shares of common stock. As of December 31, 2013, 2,991,834 shares had been issued under the 2005 ESPP. The Company recorded stock-based compensation costs related to the 2005 ESPP of $4.9 million, $4.0 million and $3.5 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Expense Information under the Authoritative Guidance

As required by the authoritative guidance, the Company estimates forfeitures of stock awards and recognizes compensation costs only for those awards expected to vest. Forfeiture rates are determined based on historical experience. The Company also considers whether there have been any significant changes in facts and circumstances that would affect its forfeiture rate quarterly. Estimated forfeitures are adjusted to actual forfeiture experience as needed. The Company recorded stock-based compensation costs, related deferred tax assets and tax benefits of $183.9 million, $57.1 million and $55.7 million, respectively, in 2013, $149.9 million, $46.7 million and $65.8 million, respectively, in 2012 and $92.9 million, $28.4 million and $67.9 million, respectively, in 2011.

The detail of the total stock-based compensation recognized by income statement classification is as follows (in thousands):

Income Statement Classifications	2013		2012		2011
Cost of services revenues	$	2,540	$	2,111	$	1,584
Research and development	63,448		54,616		31,763
Sales, marketing and services	65,549		51,519		31,354
General and administrative	52,404		41,694		28,208
Total	$	183,941	$	149,940	$	92,909

Stock Options

Stock options granted under the 2005 Plan typically have a five-year life and vest over three years, with 33.3% of the shares underlying the option vesting on the first anniversary of the date of grant and the remainder of the underlying shares vesting in equal installments at a rate of 2.78% thereafter (the "Standard Vesting Rate"). The Company also assumes stock options from certain of its acquisitions for which the vesting period is typically reset to vest over three years at the Standard Vesting Rate. During the first quarter of 2013, the Company assumed in-the-money options from the Zenprise acquisition. See Note 3 for more information related to acquisitions.

A summary of the status and activity of the Company’s fixed option awards is as follows:

Options	Number of Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2012	7,589,532		$	54.15	2.70
Assumed	285,817		11.85
Exercised	(2,168,531	)	33.97
Forfeited or expired	(299,841	)	60.90
Outstanding at December 31, 2013	5,406,977		59.64		2.15	$	57,583
Vested or expected to vest	5,366,212		59.78		2.14	$	56,548
Exercisable at December 31, 2013	4,438,465		61.88		1.93	$	38,167

The Company recognized stock-based compensation expense of $48.9 million, $56.4 million and $48.2 million related to options for the years ended December 31, 2013, 2012 and 2011, respectively. As of December 31, 2013, there was $29.7 million of total unrecognized compensation cost related to stock options. That cost is expected to be recognized over a weighted-average period of 1.22 years. The total intrinsic value of stock options exercised during 2013, 2012 and 2011 was $77.7 million, $131.4 million and $169.2 million, respectively.

Stock Option Valuation Information

The Company uses the Black-Scholes option pricing model to determine the fair value of stock options. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price, as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price, volatility over the term of the awards, actual employee exercise behaviors, risk-free interest rate and expected dividends. For purposes of valuing stock options, the Company determined the expected volatility factor by considering the implied volatility in two-year market-traded options of the Company’s common stock based on third party volatility quotes in accordance with the provisions of SAB No. 107, Share Based Payment. The Company’s decision to use implied volatility was based upon the availability of actively traded options on the Company’s common stock and its assessment that implied volatility is more representative of future stock price trends than historical volatility. The approximate risk free interest rate was based on the implied yield available on U.S. Treasury zero-coupon issues with remaining terms equivalent to the Company’s expected terms on stock options. The expected term of stock options was based on the historical employee exercise patterns. In years when a significant number of stock options are granted, the Company analyzes its historical pattern of option exercises based on certain demographic characteristics annually and has historically determined that there were no meaningful differences in option exercise activity based on demographic characteristics. The Company does not intend to pay dividends on its common stock in the foreseeable future. Accordingly, the Company used a dividend yield of zero in its option pricing model. The weighted-average fair value of stock options granted and/or assumed during 2013, 2012 and 2011 was $56.97, $23.95 and $29.91, respectively.

The assumptions used to value options granted and/or assumed are as follows:

	Stock options granted or assumed during
	2013	2012	2011
Expected volatility factor	0.39	0.38 - 0.43	0.38 - 0.50
Approximate risk free interest rate	0.4%	0.5% - 0.7%	0.6% - 1.1%
Expected term (in years)	3.35	3.91	3.27 - 3.91
Expected dividend yield	0%	0%	0%

Non-vested Stock Units

Market and Service Condition Stock Units

In March 2013 and 2012, the Company granted senior level employees non-vested stock unit awards representing, in the aggregate, 399,029 and 418,809 non-vested stock units, respectively, that vest based on certain target market performance and service conditions. The number of non-vested stock units underlying each award will be determined within sixty days of the calendar year following the end of a three-year performance period ending December 31, 2015 for the March 2013 awards and December 31, 2014 for the March 2012 awards. The attainment level under the award will be based on the Company's total return to stockholders over the performance period compared to the return on the Nasdaq Composite Total Return Index (the "XCMP"). If the Company's return is positive and meets or exceeds the indexed return, the number of non-vested stock units issued will be based on interpolation, with the maximum number of non-vested stock units issuable pursuant to the award capped at 200% of the target number of non-vested stock units set forth in the award agreement if the Company's return exceeds the indexed return by 40% or more. If the Company's return over the performance period is positive but underperforms the index, a number of non-vested stock units will be issued, below the target award, based on interpolation; however, no non-vested stock units will be issued if the Company's return underperforms the index by more than 20% over the performance period. In the event the Company's return to stockholders is negative but still meets or exceeds the indexed return, only 75% of the target award shall be issued. If the awardee is not employed by the Company at the end of the performance period; the extent to which the awardee will vest in the award, if at all, is dependent upon the timing and character of the termination as provided in the award agreement. Each non-vested stock unit, upon vesting, represents the right to receive one share of the Company's common stock.

The market condition requirements are reflected in the grant date fair value of the award, and the compensation expense for the award will be recognized assuming that the requisite service is rendered regardless of whether the market conditions are achieved. The grant date fair value of the non-vested performance stock unit awards was determined through the use of a Monte Carlo simulation model, which utilized multiple input variables that determined the probability of satisfying the market condition requirements applicable to each award as follows:

	March 2013 Grant		March 2012 Grant
Expected volatility factor	0.16 - 0.42		0.21 - 0.39
Risk free interest rate	0.33	%	0.47	%
Expected dividend yield	0	%	0	%

The range of expected volatilities utilized was based on the historical volatilities of the Company's common stock and the XCMP. The Company chose to use historical volatility to value these awards because historical stock prices were used to develop the correlation coefficients between the Company and the XCMP in order to model the stock price movements. The volatilities used were calculated over the most recent 2.75 year period, which was the remaining term of the performance period at the date of grant. The risk free interest rate was based on the implied yield available on U.S. Treasury zero-coupon issues with remaining terms equivalent to the remaining performance period. The Company does not intend to pay dividends on its common stock in the foreseeable future. Accordingly, the Company used a dividend yield of zero in its model. The estimated fair value of each award as of the date of grant was $89.93 for the March 2013 grant and $89.95 for the March 2012 grant.

Service Based Stock Units

The Company also awards senior level and certain other employees non-vested stock units granted under the 2005 Plan that vest based on service. The majority of these non-vested stock unit awards vest 33.33% on each anniversary subsequent to the date of the award. The remaining awards vest 100% on the third anniversary of the grant date. Each non-vested stock unit, upon vesting, represents the right to receive one share of the Company’s common stock. In addition, the Company awards non-vested stock units to all of its non-employee directors. These awards vest monthly in 12 equal installments based on service and, upon vesting, each stock unit represents the right to receive one share of the Company's common stock.

The following table summarizes the Company's non-vested stock unit activity for the year ended December 31, 2013:

	Number of Shares		Weighted- Average Fair Value at Grant Date
Non-vested stock units at December 31, 2012	3,607,561		$	74.70
Granted	2,765,386		71.84
Vested	(1,375,165	)	69.36
Forfeited	(365,803	)	76.16
Non-vested stock units at December 31, 2013	4,631,979		74.47

For the years ended December 31, 2013, 2012 and 2011, the Company recognized stock-based compensation expense of $130.2 million, $89.5 million and $40.0 million, respectively, related to non-vested stock units. The fair value of the non-vested stock units released in 2013, 2012, and 2011 was $95.4 million, $50.3 million and $21.3 million, respectively. As of December 31, 2013, there was $237.8 million of total unrecognized compensation cost related to non-vested stock units. The unrecognized cost is expected to be recognized over a weighted-average period of 1.96 years.

Benefit Plan

The Company maintains a 401(k) benefit plan allowing eligible U.S.-based employees to contribute up to 60% of their annual compensation, limited to an annual maximum amount as set periodically by the IRS. The Company, at its discretion, may contribute up to $0.50 for each dollar of employee contribution. The Company’s total matching contribution to an employee is typically made at 3% of the employee’s annual compensation. The Company’s matching contributions were $12.7 million, $10.5 million and $9.1 million in 2013, 2012 and 2011, respectively. The Company’s contributions vest over a four-year period at 25% per year.

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Commitments And Contingencies

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Leases

The Company leases certain office space and equipment under various operating leases. In addition to rent, the leases require the Company to pay for taxes, insurance, maintenance and other operating expenses. Certain of these leases contain stated escalation clauses while others contain renewal options. The Company recognizes rent expense on a straight-line basis over the term of the lease, excluding renewal periods, unless renewal of the lease is reasonably assured.

Rental expense for the years ended December 31, 2013, 2012 and 2011 totaled approximately $70.9 million, $65.1 million and $56.5 million, respectively. Sublease income for the years ended December 31, 2013, 2012 and 2011 was approximately $0.3 million, $0.2 million and $0.2 million, respectively. Lease commitments under non-cancelable operating leases with initial or remaining terms in excess of one year and sublease income associated with non-cancelable subleases, are as follows:

	Operating Leases		Sublease Income
	(In thousands)
Years ending December 31,
2014	$	60,982	$	255
2015	46,770		260
2016	39,353		227
2017	22,064		218
2018	18,536		203
Thereafter	88,885		—
Total	$	276,590	$	1,163

Legal Matters

The Company accrues a liability for legal contingencies when it believes that it is both probable that a liability has been incurred and that it can reasonably estimate the amount of the loss. The Company reviews these accruals and adjusts them to reflect ongoing negotiations, settlements, rulings, advice of legal counsel and other relevant information. To the extent new information is obtained and the Company's views on the probable outcomes of claims, suits, assessments, investigations or legal proceedings change, changes in the Company's accrued liabilities would be recorded in the period in which such determination is made. For the Other Matters referenced below, the amount of liability is not probable or the amount cannot be reasonably estimated; and, therefore, accruals have not been made. In addition, in accordance with the relevant authoritative guidance, for matters in which the likelihood of material loss is at least reasonably possible, the Company provides disclosure of the possible loss or range of loss. If a reasonable estimate cannot be made, however, the Company will provide disclosure to that effect.

On April 11, 2008, SSL Services, LLC (“SSL Services”) filed a suit for patent infringement against the Company in the United States District Court for the Eastern District of Texas (the “SSL Matter”). SSL Services alleged that the Company infringed U.S. Patent Nos. 6,061,796 (the “'796 patent”) and 6,158,011 (the “'011 patent”). The Company denied infringement and asserted that the patents-in-suit were invalid. A jury trial was held on SSL Services' claims, and on June 18, 2012, the jury found that the Company does not infringe the '796 patent and found that the Company willfully infringes the '011 patent through the sale and use of certain products. The jury awarded SSL Services $10.0 million. On September 17, 2012, the court issued a final judgment confirming the jury award of $10.0 million in damages and added $5.0 million in enhanced damages and approximately $5.0 million in prejudgment interest on the damages award. The Company does not believe that any of its products infringe the '011 patent, and the Company believes that the '011 patent is invalid. Accordingly, no accrual has been made related to this matter. The Company has appealed the district court's judgment on the '011 patent.

In addition to the SSL Matter and due to the nature of the Company's business, the Company is subject to patent infringement claims, including current suits against it or one or more of its wholly-owned subsidiaries alleging infringement by various Company products and services (the "Other Matters"). The Company believes that it has meritorious defenses to the allegations made in its pending cases and intends to vigorously defend these lawsuits; however, it is unable currently to determine the ultimate outcome of these or similar matters or the potential exposure to loss, if any. In addition, the Company is a defendant in various litigation matters generally arising out of the normal course of business. Although it is difficult to predict the ultimate outcomes of these cases, the Company believes that it is not reasonably possible that the ultimate outcomes will materially and adversely affect its business, financial position, results of operations or cash flows.

Guarantees

The authoritative guidance requires certain guarantees to be recorded at fair value and requires a guarantor to make disclosures, even when the likelihood of making any payments under the guarantee is remote. For those guarantees and indemnifications that do not fall within the initial recognition and measurement requirements of the authoritative guidance, the Company must continue to monitor the conditions that are subject to the guarantees and indemnifications, as required under existing generally accepted accounting principles, to identify if a loss has been incurred. If the Company determines that it is probable that a loss has been incurred, any such estimable loss would be recognized. The initial recognition and measurement requirements do not apply to the provisions contained in the majority of the Company’s software license agreements that indemnify licensees of the Company’s software from damages and costs resulting from claims alleging that the Company’s software infringes the intellectual property rights of a third party. The Company has not made material payments pursuant to these provisions as of December 31, 2013. The Company has not identified any losses that are probable under these provisions and, accordingly, the Company has not recorded a liability related to these indemnification provisions.

Purchase Obligations

The Company has agreements with suppliers to purchase inventory and estimates its non-cancelable obligations under these agreements for the fiscal year ended December 31, 2014 to be approximately $13.1 million. The Company also has contingent obligations to purchase inventory for the fiscal year ended December 31, 2014, which are based on amount of usage, of approximately $18.2 million. The Company does not have any purchase obligations beyond December 31, 2014.

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Income Taxes (Components of the Provision for Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 51,389	$ 81,019	$ 50,022
Foreign	37,221	30,059	29,169
State	11,605	17,395	11,905
Total current	100,215	128,473	91,096
Deferred:
Federal	(34,897)	(64,960)	(8,631)
Foreign	(8,413)	1,409	(4,792)
State	(8,538)	(7,240)	(2,806)
Total deferred	(51,848)	(70,791)	(16,229)
Total provision	$ 48,367	$ 57,682	$ 74,867

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Income Taxes (Components of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:
Accruals and reserves	$ 25,556	$ 36,128
Deferred revenue	55,688	41,820
Tax credits	60,519	43,657
Net operating losses	103,329	89,856
Other	10,537	8,452
Stock based compensation	72,074	54,852
Depreciation and amortization	1,675	0
Valuation allowance	(26,465)	(18,185)
Total deferred tax assets	302,913	256,580
Deferred tax liabilities:
Depreciation and amortization	0	40,159
Acquired technology	(136,258)	(140,017)
Prepaid expenses	(16,258)	(17,093)
Total deferred tax liabilities	(152,516)	(197,269)
Total net deferred tax assets	$ 150,397	$ 59,311

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Income Taxes (United States and Foreign Components of Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
United States	$ 142,085	$ 200,802	$ 176,824
Foreign	245,805	209,427	253,673
Income before income taxes	$ 387,890	$ 410,229	$ 430,497

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Net Revenues And Profit By Segment

Net revenues and segment profit for 2013, 2012 and 2011 classified by the Company’s reportable segments, are presented below:

	2013			2012			2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division	$	2,335,562		$	2,074,800		$	1,778,646
SaaS division	582,872			511,323			427,746
Consolidated	$	2,918,434		$	2,586,123		$	2,206,392
Segment profit:
Enterprise and Services Provider division	$	588,138		$	562,794		$	504,883
SaaS division	116,061			92,498			76,147
Unallocated expenses (1):
Amortization of intangible assets	(139,541		)	(114,574		)	(71,131		)
Restructuring	—			—			(24		)
Net interest and other income	7,173			19,451			13,531
Stock-based compensation	(183,941		)	(149,940		)	(92,909		)
Consolidated income before income taxes	$	387,890		$	410,229		$	430,497

⁽¹⁾  Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.

Identifiable Assets By Segment

	December 31,
	2013		2012
	(In thousands)
Identifiable assets:
Enterprise and Service Provider division	$	4,662,724	$	4,246,292
SaaS division	549,525		550,110
Total identifiable assets	$	5,212,249	$	4,796,402

Identifiable and Long-Lived Assets by Product Grouping and Countries

	December 31,
	2013		2012
	(In thousands)
Long-lived assets, net:
United States	$	258,114	$	231,812
United Kingdom	29,382		30,633
Other countries	51,500		40,849
Total long-lived assets, net	$	338,996	$	303,294

Revenues By Product Grouping

Revenues by product grouping for the Company’s Enterprise and Service Provider division and SaaS division were as follows for the years ended:

	December 31,
	2013		2012		2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division
Mobile and Desktop revenues(1)	$	1,549,383	$	1,450,850	$	1,278,798
Networking and Cloud revenues(2)	634,598		496,608		385,518
Professional services(3)	138,879		119,061		91,496
Other	12,702		8,281		22,834
Total Enterprise and Service Provider division revenues	2,335,562		2,074,800		1,778,646
SaaS division revenues	582,872		511,323		427,746
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392

(1) Mobile and Desktop revenues are primarily comprised of sales from the Company’s desktop and application virtualization products, XenDesktop and XenApp, and the Company's Mobility products, which include XenMobile and related license updates and maintenance and support.

(2) Networking and Cloud revenues are primarily comprised of sales from the Company’s cloud networking products, which include NetScaler, CloudBridge and ByteMobile Smart Capacity, and the Company’s cloud platform products which include XenServer, CloudPlatform and CloudPortal and related license updates and maintenance and support.

(3) Professional services revenues are primarily comprised of revenues from consulting services and product training and certification services.

Revenues By Geographic Location

The following table presents revenues by segment and geographic location, for the years ended:

	December 31,
	2013		2012		2011
	(In thousands)
Net revenues:
Enterprise and Service Provider division
Americas	$	1,263,673	$	1,106,801	$	993,062
EMEA	785,862		691,111		576,953
Asia-Pacific	286,027		276,888		208,631
Total Enterprise and Service Provider division revenues	2,335,562		2,074,800		1,778,646
SaaS division
Americas	488,307		433,263		367,260
EMEA	73,529		63,484		50,711
Asia-Pacific	21,036		14,576		9,775
Total SaaS division revenues	582,872		511,323		427,746
Total net revenues	$	2,918,434	$	2,586,123	$	2,206,392

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Recurring basis | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Total assets	$ 1,595,368	$ 1,528,101
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	1,743	4,162
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Total assets	280,351	627,133
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	0	0
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Total assets	1,304,727	897,627
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	1,743	4,162
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Total assets	10,291	3,341
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	0	0
Cash and cash equivalents | Corporate securities
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	389
Cash and cash equivalents | Corporate securities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0
Cash and cash equivalents | Corporate securities | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	389
Cash and cash equivalents | Corporate securities | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0
Cash and cash equivalents | Recurring basis | Cash | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	227,528	503,614
Cash and cash equivalents | Recurring basis | Cash | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	227,528	503,614
Cash and cash equivalents | Recurring basis | Cash | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Cash and cash equivalents | Recurring basis | Cash | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Cash and cash equivalents | Recurring basis | Money market funds | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	52,823	123,519
Cash and cash equivalents | Recurring basis | Money market funds | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	52,823	123,519
Cash and cash equivalents | Recurring basis | Money market funds | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Cash and cash equivalents | Recurring basis | Money market funds | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Cash and cash equivalents | Recurring basis | Corporate securities | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		16,476
Cash and cash equivalents | Recurring basis | Corporate securities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		0
Cash and cash equivalents | Recurring basis | Corporate securities | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		16,476
Cash and cash equivalents | Recurring basis | Corporate securities | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		0
Available-for-sale securities | Recurring basis | Corporate securities | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	644,091	405,322
Available-for-sale securities | Recurring basis | Corporate securities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Available-for-sale securities | Recurring basis | Corporate securities | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	633,801	401,981
Available-for-sale securities | Recurring basis | Corporate securities | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	10,291	3,341
Available-for-sale securities | Recurring basis | Agency securities | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	454,750	402,707
Available-for-sale securities | Recurring basis | Agency securities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Available-for-sale securities | Recurring basis | Agency securities | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	454,750	402,707
Available-for-sale securities | Recurring basis | Agency securities | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Available-for-sale securities | Recurring basis | Municipal securities | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	53,756	32,313
Available-for-sale securities | Recurring basis | Municipal securities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Available-for-sale securities | Recurring basis | Municipal securities | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	53,756	32,313
Available-for-sale securities | Recurring basis | Municipal securities | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Available-for-sale securities | Recurring basis | Government securities | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	157,079	39,993
Available-for-sale securities | Recurring basis | Government securities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Available-for-sale securities | Recurring basis | Government securities | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	157,079	39,993
Available-for-sale securities | Recurring basis | Government securities | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Prepaid expenses and other current assets | Recurring basis | Estimate of fair value measurement
Assets, Fair Value Disclosure [Abstract]
Foreign currency derivatives	4,952	4,157
Prepaid expenses and other current assets | Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Foreign currency derivatives	0	0
Prepaid expenses and other current assets | Recurring basis | Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Foreign currency derivatives	4,952	4,157
Prepaid expenses and other current assets | Recurring basis | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Foreign currency derivatives	0	0
Accrued expenses and other current liabilities | Recurring basis | Estimate of fair value measurement
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	1,743	4,162
Accrued expenses and other current liabilities | Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	0	0
Accrued expenses and other current liabilities | Recurring basis | Significant Other Observable Inputs (Level 2)
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	1,743	4,162
Accrued expenses and other current liabilities | Recurring basis | Significant Unobservable Inputs (Level 3)
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	$ 0	$ 0

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Comprehensive Income

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

COMPREHENSIVE INCOME

COMPREHENSIVE INCOME

The changes in Accumulated other comprehensive income (loss) by component, net of tax, are as follows (in thousands):

	Foreign currency			Unrealized gain (loss) on available-for-sale securities			Unrealized gain (loss) on derivative instruments			Other comprehensive gain (loss) on pension liability			Total
	(In thousands)
Balance at December 31, 2012	$	(3,024	)	$	2,426		$	(10	)	$	(7,097	)	$	(7,705	)
Other comprehensive income before reclassifications	8,482			(985		)	(67		)	2,500			9,930
Amounts reclassified from Accumulated other comprehensive income (loss)	—			(203		)	2,929			—			2,726
Net current period other comprehensive income	8,482			(1,188		)	2,862			2,500			12,656
Balance at December 31, 2013	$	5,458		$	1,238		$	2,852		$	(4,597	)	$	4,951

Income tax expense or benefit allocated to each component of other comprehensive income is not material.

Reclassifications out of Accumulated other comprehensive income (loss) are as follows (in thousands):

	For the Twelve Months Ended December 31, 2013
	(In thousands)
Details about Accumulated other comprehensive income (loss) components	Amount reclassified from Accumulated other comprehensive income (loss), net of tax			Affected line item in the Consolidated Statements of Income
Unrealized net gain on available-for-sale securities	$	203		Other (expense) income, net
Unrealized net losses on cash flow hedges	(2,929		)	Operating expenses *
	$	(2,726	)

* Operating expenses amounts allocated to Research and development, Sales, marketing and services, and General and administrative are not individually significant.

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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Schedule of Property and Equipment

Property and equipment consist of the following:

	December 31,
	2013			2012
	(In thousands)
Buildings	$	85,092		$	76,202
Computer equipment	204,110			178,948
Software	316,902			259,225
Equipment and furniture	105,145			86,362
Leasehold improvements	168,990			149,731
	880,239			750,468
Less accumulated depreciation and amortization	(597,268		)	(479,460		)
Assets under construction	28,438			15,517
Land	27,587			16,769
Total	$	338,996		$	303,294

Schedule of Changes in Goodwill

The following table presents the change in goodwill allocated to the Company’s reportable segments during 2013 and 2012 (in thousands):

	Balance at January 1, 2013		Additions			Other				Balance at December 31, 2013		Balance at January 1, 2012		Additions			Other				Balance at December 31, 2012
Enterprise and Service Provider division	$	1,158,580	$	248,800		$	(5,224	)	(2)	$	1,402,156	$	956,504	$	257,379		$	(55,303	)	(4)	$	1,158,580
SaaS division	359,639		2,668			4,486			(3)	366,793		282,616		26,481			50,542			(4)	359,639
Consolidated	$	1,518,219	$	251,468	(1)	$	(738	)		$	1,768,949	$	1,239,120	$	283,860	(1)	$	(4,761	)		$	1,518,219

⁽¹⁾  Amount primarily relates to acquisitions. See Note 3 for more information regarding the Company’s acquisitions.

⁽²⁾  Amount primarily relates to adjustments to the preliminary purchase price allocation for certain 2012 Acquisitions.

⁽³⁾ 

Schedule of Intangible Assets

Intangible assets consist of the following (in thousands):

	December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	677,509	$	428,418	5.60
Other	482,918		222,414		7.52
Total	$	1,160,427	$	650,832	6.38

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	620,032	$	339,608	5.60
Other	446,601		170,820		7.28
Total	$	1,066,633	$	510,428	6.29

Schedule of Estimated Future Annual Amortization Expense of Intangible Assets

Estimated future annual amortization expense is as follows (in thousands):

Year ending December 31,
2014	$	132,956
2015	111,016
2016	88,749
2017	61,057
2018	47,618

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Investments (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investment [Line Items]
Average remaining maturities for short-term available for sale investments, in months	5 months
Average remaining maturities for long-term available for sale investments, in years	3 years
Realized gains on the sales of available-for-sale investments	$ 3,000,000	$ 4,100,000
Realized losses on the sales of available-for-sale investments	2,700,000	800,000
Available-for-sale investments, carrying value	1,307,910,000	876,988,000
Available-for-sale investments, fair value	1,309,676,000	880,335,000
Other than temporary charge included in income	0	2,500,000
Gross unrealized losses	635,000	192,000
Cost method investments	24,300,000	26,200,000
Cost method investments, gain recorded on cost method investments	6,000,000	16,500,000
Cost method investment, impairment charge included other income	3,700,000	3,500,000	3,500,000
Other-than-temporary impairment
Investment [Line Items]
Available-for-sale investments, carrying value		5,000,000
Available-for-sale investments, fair value		$ 2,500,000

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Significant Accounting Policies (Changes in Goodwill) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Goodwill [Roll Forward]
Beginning balance	$ 1,518,219,000		$ 1,239,120,000
Additions	251,468,000	[1]	283,860,000	[1]
Other	(738,000)		(4,761,000)
Ending balance	1,768,949,000		1,518,219,000
Enterprise and Service Provider division
Goodwill [Roll Forward]
Beginning balance	1,158,580,000		956,504,000
Additions	248,800,000		257,379,000
Other	(5,224,000)	[2]	(55,303,000)	[3]
Ending balance	1,402,156,000		1,158,580,000
SaaS division
Goodwill [Roll Forward]
Beginning balance	359,639,000		282,616,000
Additions	2,668,000		26,481,000
Other	4,486,000	[4]	50,542,000	[3]
Ending balance	366,793,000		359,639,000
ByteMobile
Goodwill [Roll Forward]
Ending balance	221,914,000
Purchase accounting adjustments	$ 3,300,000

[1] Amount primarily relates to acquisitions. See Note 3 for more information regarding the Company’s acquisitions.

[2] Amount primarily relates to adjustments to the preliminary purchase price allocation for certain 2012 Acquisitions.

[3] Amount primarily relates to reclassification of goodwill between segments. In the first quarter of 2012, the Company transferred the business acquired in its acquisition of Novell Labs, Inc. (d/b/a "ShareFile") from its Enterprise and Service Provider division to its SaaS division. Also included in the SaaS division is foreign currency translation.

[4] Amount primarily relates to foreign currency translation.

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Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 339,523	$ 352,547	$ 355,630
Other comprehensive income (loss):
Change in foreign currency translation adjustment	8,482	2,457	(4,595)
Available for sale securities:
Change in net unrealized gains	(985)	3,603	293
Less: reclassification adjustment for net (gains) losses included in net income	(203)	(3,443)	1,343
Net change (net of tax effect)	(1,188)	160	1,636
Gain (loss) on pension liability	2,500	(3,925)	634
Cash flow hedges:
Change in unrealized gains	(67)	(653)	(2,784)
Less: reclassification adjustment for net losses (gains) included in net income	2,929	5,817	(8,475)
Net change (net of tax effect)	2,862	5,164	(11,259)
Other comprehensive income (loss)	12,656	3,856	(13,584)
Comprehensive income	352,179	356,403	342,046
Less: Comprehensive income attributable to non-controlling interest	0	0	(692)
Comprehensive income attributable to Citrix Systems, Inc.	$ 352,179	$ 356,403	$ 341,354

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Acquisitions

12 Months Ended

Dec. 31, 2013

Business Combination, Description [Abstract]

ACQUISITIONS

ACQUISITIONS

2013 Acquisitions

Zenprise

In January 2013, the Company acquired all of the issued and outstanding securities of Zenprise, Inc. ("Zenprise"), a

privately-held leader in mobile device management. Zenprise became part of the Company's Enterprise and Service Provider division, in which Citrix has integrated the Zenprise offering for mobile device management into its XenMobile Enterprise edition. The total consideration for this transaction was approximately $324.0 million, net of $2.9 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $0.6 million, of which the Company expensed approximately $0.1 million during the year ended December 31, 2013 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisition, the Company assumed certain stock options, which are exercisable for up to 285,817 shares of the Company's common stock, for which the vesting period reset fully upon the closing of the transaction.

2013 Other Acquisitions

During the third quarter of 2013, the Company acquired all of the issued and outstanding securities of a privately-held company. The total cash consideration for this transaction was approximately $5.3 million. The Company will pay contingent consideration of up to $3.0 million in cash upon the satisfaction of certain milestone achievements, as defined pursuant to the share purchase agreement. This business became part of the Company's SaaS division. Transaction costs associated with the acquisition were approximately $0.2 million, all of which the Company expensed during the year ended December 31, 2013, and are included in General and administrative expense in the accompanying consolidated statements of income.

During the fourth quarter of 2013, the Company acquired all of the issued and outstanding securities of a privately-held company. The total cash consideration for this transaction was approximately $5.5 million. This business became part of the Company's Enterprise and Service Provider division. Transaction costs associated with the acquisition were approximately $0.2 million,all of which the Company expensed during the year ended December 31, 2013, and are included in General and administrative expense in the accompanying consolidated statements of income.

The two acquisitions discussed in this section captioned 2013 Other Acquisitions will collectively be referred to herein as the "2013 Other Acquisitions".

Purchase Accounting for the Acquisitions in 2013

The purchase prices for the companies acquired during the year ended December 31, 2013, which include Zenprise and the 2013 Other Acquisitions (collectively, the "2013 Acquisitions"), were allocated to the acquired net tangible and intangible assets based on estimated fair values as of the date of the acquisition. The allocation of the total purchase prices are summarized below (in thousands):

	Zenprise				2013 Other Acquisitions
	Purchase Price Allocation			Asset Life	Purchase Price Allocation			Asset Life
Current assets	$	10,943			$	3,586
Other assets	668				—
Property and equipment	431			Various	—
Deferred tax assets, non-current	38,785				3,177
Intangible assets	69,200			1-7 years	11,300			5-6 years
Goodwill	247,273			Indefinite	4,195			Indefinite
Assets acquired	367,300				22,258
Current liabilities assumed	(8,475		)		(3,950		)
Deferred tax liabilities, current	—				(2,000		)
Long-term liabilities assumed	(3,107		)		(1,000		)
Deferred tax liabilities, non-current	(28,725		)		(1,699		)
Net assets acquired	$	326,993			$	13,609

Current assets acquired in connection with the 2013 Acquisitions consisted primarily of cash and accounts receivable. Current liabilities assumed in connection with the 2013 Acquisitions consisted primarily of current portion of deferred revenues, short-term payables, other accrued expenses and short-term debt, which was paid in full subsequent to the respective acquisition date. Long-term liabilities assumed in connection with the 2013 Acquisitions consisted of other long-term liabilities and long-term portion of deferred revenues.

The Company continues to evaluate certain income tax assets and liabilities related to the 2013 Other Acquisitions. Goodwill from the 2013 Acquisitions was assigned to the respective segments each businesses became part of. The goodwill related to the 2013 Acquisitions is not deductible for tax purposes. See Note 11 for segment information. The goodwill amounts are comprised primarily of expected synergies from combining operations and other intangible assets that do not qualify for separate recognition.

Revenues from the 2013 Acquisitions are included in the revenues of each business's respective segment. The Company has included the effect of the 2013 Acquisitions in its results of operations prospectively from the date of acquisition.

Identifiable intangible assets acquired in connection with the 2013 Acquisitions (in thousands) and the weighted-average lives are as follows:

	Zenprise		Asset Life	2013 Other Acquisitions		Asset Life
Trade names	$	2,400	3.0 years	$	—
Non-compete agreements	700		1.0 year	—
Customer relationships	18,300		7.0 years	3,600		6.0 years
Core and product technologies	47,800		6.0 years	6,300		5.0 years
In-process R&D (1)	—			1,400		Indefinite
Total	$	69,200		$	11,300

(1) Capitalized acquired in-process R&D costs will remain capitalized until such time as the projects are complete, at which point they will be amortized, or they will be written off when it is probable the projects will not be completed.

The following unaudited pro-forma information combines the consolidated results of the operations of the Company and the 2013 Acquisitions as if the acquisitions had occurred at the beginning of fiscal year 2012 (in thousands, except per share data):

	Year Ended December 31,
	2013		2012
Revenues	$	2,921,604	$	2,596,227
Income from operations	376,936		333,077
Net income	336,250		314,300
Per share - basic	1.80		1.68
Per share - diluted	1.79		1.66

In July 2012, the Company acquired all of the issued and outstanding securities of ByteMobile, Inc. (“ByteMobile”), a privately-held provider of data and video optimization solutions for mobile network operators. ByteMobile became part of the Company's Enterprise and Service Provider division and extends the Company's industry reach into the mobile and cloud markets. The total consideration for this transaction was approximately $399.5 million, net of $5.6 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $2.1 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. Revenues from the ByteMobile acquisition are included in the revenue of the Company's Enterprise and Service Provider division. The Company has included the effect of the ByteMobile acquisition in its results of operations prospectively from the date of acquisition.

Purchase Accounting for the ByteMobile acquisition

During the twelve months ended December 31, 2013, the Company made net adjustments to goodwill of approximately $3.3 million to the purchase price allocation associated with the ByteMobile acquisition. Goodwill from the ByteMobile acquisition was assigned to the Company's Enterprise and Service Provider division. The goodwill related to the ByteMobile acquisition is not deductible for tax purposes. See Note 2 for information on adjustments to goodwill and Note 11 for segment information. The goodwill amounts are comprised primarily of expected synergies from combining operations and other intangible assets that do not qualify for separate recognition.

The purchase price for ByteMobile was allocated to the acquired net tangible and intangible assets based on its estimated fair value as of the date of the acquisition. The allocation of the total purchase price is summarized below (in thousands):

	ByteMobile
	Purchase Price Allocation			Asset Life
Current assets	$	57,796
Other assets	7,406
Property and equipment	2,484			Various
Deferred tax assets, non-current	44,934
Intangible assets	248,900			1-9 years
Goodwill	221,914			Indefinite
Assets acquired	583,434
Current liabilities assumed	(62,313		)
Long-term liabilities assumed	(4,083		)
Deferred tax liabilities, non-current	(111,904		)
Net assets acquired	$	405,134

Current assets acquired in connection with the ByteMobile acquisition consisted primarily of cash and accounts receivable. Current liabilities assumed in connection with the ByteMobile acquisition consisted primarily of current portion of deferred revenues, short-term payables, other accrued expenses and short-term debt which was paid in full subsequent to the acquisition date. Long-term liabilities assumed in connection with the ByteMobile acquisition consisted of other long-term liabilities, long-term portion of deferred revenues and long-term debt, which was paid in full subsequent to the acquisition date. Identifiable intangible assets acquired in connection with the ByteMobile acquisition included trade names of $6.0 million with a weighted-average asset life of 6.0 years, customer relationships of $141.5 million with a weighted-average life of 9.0 years, and core and product technologies of $101.4 million with a weighted-average life of 4.8 years.

Podio

In April 2012, the Company acquired all of the issued and outstanding securities of Podio ApS (“Podio”), a privately-held provider of a cloud-based collaborative work platform. Podio became part of the Company's SaaS division and expands the Company's offerings of integrated cloud-based support for team-based collaboration. The total consideration for this transaction was approximately $43.6 million, net of $1.7 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition were approximately $0.5 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. The Company recorded approximately $24.5 million of goodwill, which is not deductible for tax purposes, and acquired $24.6 million of identifiable intangible assets, of which $20.7 million is related to product related intangible assets and $3.9 million is related to other intangible assets. In addition, in connection with the acquisition, the Company assumed non-vested stock units which were converted into the right to receive up to 127,668 shares of the Company's common stock, for which the vesting period reset fully upon the closing of the transaction.

2012 Other Acquisitions

During the first quarter of 2012, the Company acquired all of the issued and outstanding securities of a privately-held company for total cash consideration of approximately $24.6 million, net of $0.6 million of cash acquired. This business became part of the Company’s Enterprise and Service Provider division. Transaction costs associated with the acquisition were approximately $0.5 million, of which the Company expensed $0.4 million and $0.1 million during the years ended December 31, 2012 and 2011, respectively, and are included in General and administrative expense in the accompanying consolidated statements of income. The Company recorded approximately $22.8 million of goodwill, which is not deductible for tax purposes, and acquired $11.0 million of identifiable intangible assets, all of which is related to product related intangible assets. In addition, in connection with this acquisition, the Company assumed non-vested stock units which were converted into the right to receive up to 13,481 shares of the Company's common stock and assumed certain stock options which are exercisable for 12,017 shares of the Company's common stock, for which the vesting period reset fully upon the closing of the transaction.

During the second quarter of 2012, the Company acquired all of the issued and outstanding securities of two privately-held companies for a total cash consideration of approximately $15.4 million, net of $0.2 million of cash acquired. The businesses became part of the Company's Enterprise and Service Provider division. Transaction costs associated with the acquisitions were approximately $0.4 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisitions, the Company assumed non-vested stock units which were converted into the right to receive, in the aggregate, up to 66,459 shares of the Company's common stock, for which the vesting period reset fully upon the closing of each respective transaction.

During the third quarter of 2012, the Company acquired all of the issued and outstanding securities of two privately-held companies for a total cash consideration of approximately $5.3 million. One of the businesses became part of the Company's Enterprise and Service Provider division and the other became part of the Company's SaaS division. Transaction costs associated with the acquisitions were approximately $0.2 million, all of which the Company expensed during the year ended December 31, 2012 and are included in General and administrative expense in the accompanying consolidated statements of income. In addition, in connection with the acquisitions, the Company assumed non-vested stock units which were converted into the right to receive, in the aggregate, up to 13,487 shares of the Company's common stock, for which the vesting period reset fully upon the closing of each respective transaction.

Subsequent Events

On January 8, 2014, the Company acquired all of the issued and outstanding securities of Framehawk, Inc. ("Framehawk"). The Framehawk solution, which optimizes the delivery of virtual desktops and applications to mobile devices, will be combined with HDX technology in the Citrix XenApp and XenDesktop products to deliver an unparalleled user experience under adverse network conditions. The total preliminary consideration for this transaction was approximately $27.9 million, net of $0.3 million of cash acquired, and was paid in cash. Transaction costs associated with the acquisition are currently estimated at $0.1 million, all of which the Company expensed during the year ended December 31, 2013 and are included in General and administrative expense in the accompanying consolidated statements of income.

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Employee Stock-Based Compensation and Benefit Plans (Schedule of Non-vested Stock Unit Activity) (Details) (Non-vested stock, USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2013
Non-vested stock
Number of Shares
Non-vested stock units at December 31, 2012 (in shares)	3,607,561		3,607,561
Granted (in shares)			2,765,386
Vested (in shares)			(1,375,165)
Forfeited (in shares)			(365,803)
Non-vested stock units at December 31, 2013 (in shares)			4,631,979
Weighted- Average Fair Value at Grant Date
Non-vested stock units at December 31, 2012 (in dollars per share)	$ 74.70		$ 74.70
Granted (in dollars per share)	$ 89.93	$ 89.95	$ 71.84
Vested (in dollars per share)			$ 69.36
Forfeited (in dollars per share)			$ 76.16
Non-vested stock units at December 31, 2013 (in dollars per share)			$ 74.47

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Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at End of Period	$ 2,100		$ 2,600
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of Period	3,883		2,564		3,409
Charged to Costs and Expenses	1,046		1,784		266
Charged to Other Accounts	0	[1]	1,119	[1]	1,468	[1]
Deductions	1,637	[2]	1,584	[2]	2,579	[2]
Balance at End of Period	3,292		3,883		2,564
Allowance for returns
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of Period	2,564		1,361		850
Charged to Costs and Expenses	0		0		0
Charged to Other Accounts	4,473	[3]	10,742	[3]	5,542	[3]
Deductions	4,975	[4]	9,539	[4]	5,031	[4]
Balance at End of Period	2,062		2,564		1,361
Valuation allowance for deferred tax assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of Period	18,185		9,235		13,999
Charged to Costs and Expenses	0		0		0
Charged to Other Accounts	8,280	[5]	8,950	[6]	(4,764)	[6]
Deductions	0		0		0
Balance at End of Period	$ 26,465		$ 18,185		$ 9,235

[1] Adjustments from acquisitions.

[2] Uncollectible accounts written off, net of recoveries.

[3] Charged against revenues.

[4] Credits issued for returns.

[5] Related to deferred tax assets on foreign tax credits, net operating loss carryforwards, and depreciation.

[6] Related to deferred tax assets on unrealized losses and acquisitions.

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Segment Information (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013 segment	Dec. 31, 2012	Dec. 31, 2011
Concentration Risk [Line Items]
Net revenues	$ 802,420	$ 712,731	$ 730,384	$ 672,899	$ 739,996	$ 641,422	$ 615,210	$ 589,495	$ 2,918,434	$ 2,586,123	$ 2,206,392
Number of reportable segments									2
Percentage of international revenues accounting for the Company's net revenues									45.40%	45.30%	43.20%
US to International Revenues
Concentration Risk [Line Items]
Net revenues									$ 215,300	$ 127,400	$ 106,000
Ingram Micro | Net revenues | Customer concentration risk
Concentration Risk [Line Items]
Number of customers meeting concentration risk threshold	1				1				1	1	1
Concentration risk percentage									14.00%	16.00%	17.00%

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2013

Business Combination, Description [Abstract]

Schedule of Allocation of Total Purchase Prices

The allocation of the total purchase prices are summarized below (in thousands):

	Zenprise				2013 Other Acquisitions
	Purchase Price Allocation			Asset Life	Purchase Price Allocation			Asset Life
Current assets	$	10,943			$	3,586
Other assets	668				—
Property and equipment	431			Various	—
Deferred tax assets, non-current	38,785				3,177
Intangible assets	69,200			1-7 years	11,300			5-6 years
Goodwill	247,273			Indefinite	4,195			Indefinite
Assets acquired	367,300				22,258
Current liabilities assumed	(8,475		)		(3,950		)
Deferred tax liabilities, current	—				(2,000		)
Long-term liabilities assumed	(3,107		)		(1,000		)
Deferred tax liabilities, non-current	(28,725		)		(1,699		)
Net assets acquired	$	326,993			$	13,609

The purchase price for ByteMobile was allocated to the acquired net tangible and intangible assets based on its estimated fair value as of the date of the acquisition. The allocation of the total purchase price is summarized below (in thousands):

	ByteMobile
	Purchase Price Allocation			Asset Life
Current assets	$	57,796
Other assets	7,406
Property and equipment	2,484			Various
Deferred tax assets, non-current	44,934
Intangible assets	248,900			1-9 years
Goodwill	221,914			Indefinite
Assets acquired	583,434
Current liabilities assumed	(62,313		)
Long-term liabilities assumed	(4,083		)
Deferred tax liabilities, non-current	(111,904		)
Net assets acquired	$	405,134

Schedule of Identifiable Intangible Assets Acquired in Connection with the 2013 Acquisitions

Identifiable intangible assets acquired in connection with the 2013 Acquisitions (in thousands) and the weighted-average lives are as follows:

	Zenprise		Asset Life	2013 Other Acquisitions		Asset Life
Trade names	$	2,400	3.0 years	$	—
Non-compete agreements	700		1.0 year	—
Customer relationships	18,300		7.0 years	3,600		6.0 years
Core and product technologies	47,800		6.0 years	6,300		5.0 years
In-process R&D (1)	—			1,400		Indefinite
Total	$	69,200		$	11,300

Schedule of Pro Forma Information

The following unaudited pro-forma information combines the consolidated results of the operations of the Company and the 2013 Acquisitions as if the acquisitions had occurred at the beginning of fiscal year 2012 (in thousands, except per share data):

	Year Ended December 31,
	2013		2012
Revenues	$	2,921,604	$	2,596,227
Income from operations	376,936		333,077
Net income	336,250		314,300
Per share - basic	1.80		1.68
Per share - diluted	1.79		1.66

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Derivative Financial Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash flow hedge instrument term, maximum historical term	12 months
Cash flow hedge instrument term, maximum	18 months
Cumulative unrealized gain (loss) on cash flow derivative instruments in accumulated other comprehensive loss	$ 2.9	$ 0

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Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data [Abstract]

Schedule of quarterly financial information (unaudited)

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2013
Net revenues	$	672,899	$	730,384	$	712,731	$	802,420	$	2,918,434
Gross margin	557,985		603,144		588,798		665,712		2,415,639
Income from operations	56,608		75,888		87,367		160,854		380,717
Net income attributable to Citrix Systems, Inc.	59,688		64,461		76,730		138,644		339,523
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	0.32		0.34		0.41		0.75		1.82
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	0.32		0.34		0.41		0.74		1.80
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2012
Net revenues	$	589,495	$	615,210	$	641,422	$	739,996	$	2,586,123
Gross margin	503,152		520,852		535,354		622,628		2,181,986
Income from operations	80,750		82,192		82,415		145,421		390,778
Net income attributable to Citrix Systems, Inc.	68,267		92,006		78,245		114,029		352,547
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	0.37		0.49		0.42		0.61		1.89
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	0.36		0.49		0.41		0.60		1.86

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Net Income Per Share Attributable To Citrix Systems Inc. Stockholders

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

NET INCOME PER SHARE ATTRIBUTABLE TO CITRIX SYSTEMS, INC. STOCKHOLDERS

NET INCOME PER SHARE ATTRIBUTABLE TO CITRIX SYSTEMS, INC. STOCKHOLDERS

The following table sets forth the computation of basic and diluted net income per share attributable to Citrix Systems, Inc. stockholders (in thousands, except per share information):

	Year Ended December 31,
	2013		2012		2011
Numerator:
Net income attributable to Citrix Systems, Inc. stockholders	$	339,523	$	352,547	$	356,322
Denominator:
Denominator for basic earnings per share - weighted-average shares outstanding	186,672		186,722		187,315
Effect of dilutive employee stock awards:
Employee stock awards	1,573		2,407		3,326
Denominator for diluted earnings per share - weighted-average shares outstanding	188,245		189,129		190,641
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	$	1.82	$	1.89	$	1.90
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	$	1.80	$	1.86	$	1.87
Anti-dilutive weighted-average shares	3,647		3,464		2,576