Subsequent Events	12 Months Ended
Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On July 26, 2016, the Company entered into definitive agreements with GetGo, Inc., its wholly-owned subsidiary (“GetGo”), and LogMeIn, Inc. (“LogMeIn”), with respect to a Reverse Morris Trust transaction. Subject to the terms and conditions of those agreements, the Company transferred its GoTo Business to GetGo, and after the close of business on January 31, 2017, the Company distributed approximately 26.9 million shares of GetGo common stock to the Company’s stockholders of record as of the close of business on January 20, 2017 (the “Record Date”). Immediately following the Distribution, Lithium Merger Sub, Inc., a wholly-owned subsidiary of LogMeIn, merged with and into GetGo, with GetGo as the surviving corporation (the “Merger”). In connection with the Merger, GetGo became a wholly-owned subsidiary of LogMeIn, and each share of GetGo common stock was converted into the right to receive one share of LogMeIn common stock. As a result of these transactions, the Company’s stockholders received approximately 26.9 million shares of LogMeIn common stock in the aggregate, or 0.171844291 of a share of LogMeIn common stock for each share of the Company’s common stock held of record by such stockholders on the Record Date. No fractional shares of LogMeIn were issued, and the Company’s stockholders instead received cash in lieu of any fractional shares. The conversion period for the Convertible Notes that commenced on October 10, 2016 in connection with the Distribution terminated as of the close of business on January 31, 2017. As a result, the Convertible Notes were reclassified to Other liabilities from Current liabilities and the amount previously recorded as Temporary equity was reclassified to permanent equity as of January 31, 2017. The Distribution also resulted in an adjustment to the conversion rate for the Convertible Notes under the terms of the Indenture. As a result of this adjustment, the conversion rate for the Convertible Notes in effect as of the opening of business on February 1, 2017 is 13.9061 shares of the Company’s common stock per $1,000 principal amount of Convertible Notes, which corresponds to a conversion price of approximately $71.91 per share of common stock. Corresponding adjustments were made to the conversion rates for the Convertible Note Hedge and Warrant Transactions as of the opening of business on February 1, 2017. In connection with the Distribution, the Company made certain adjustments to outstanding restricted stock unit and stock option awards with the intention of preserving the intrinsic value of the awards prior to the Distribution. There was no change to the vesting terms of these awards. As a result of these adjustments, the Company currently expects to incur incremental expense in the first quarter of 2017. As a result of the separation of the GoTo Business, the Company has evaluated its existing tax attributes to reflect the continuing operations of the Company. The Company expects to record a $45.2 million charge to income tax expense in the first quarter of 2017 as a result of changes in its expectations of realizability of state R&D credits due directly to the separation of the GoTo Business. The Company will have less income subject to taxation in California, and therefore, the R&D credits will not be able to be utilized. 2017 Acquisition On January 3, 2017, the Company acquired all of the issued and outstanding securities of Unidesk Corporation (“Unidesk”). Unidesk is the inventor of the Microsoft Windows application packaging and management technology known as layering. Citrix acquired Unidesk to enhance and provide a demonstrable difference in application management and delivery. By incorporating the Unidesk technology into XenApp and XenDesktop, Citrix will advance its industry leadership by offering the most powerful and easy to deploy application layering solution available for delivering and managing applications and desktops in the cloud, on-premises and in hybrid deployment environments. Unidesk will become part of the Company's Enterprise and Service Provider segment. The total preliminary cash consideration for this transaction was approximately $60.5 million, net of $2.7 million cash acquired. Transaction costs associated with the acquisition are currently estimated at $0.3 million, of which the Company expensed $0.3 million during the year ended December 31, 2016, which were included in General and administrative expense in the accompanying consolidated statements of income.

SUBSEQUENT EVENTS

On July 26, 2016, the Company entered into definitive agreements with GetGo, Inc., its wholly-owned subsidiary (“GetGo”), and LogMeIn, Inc. (“LogMeIn”), with respect to a Reverse Morris Trust transaction. Subject to the terms and conditions of those agreements, the Company transferred its GoTo Business to GetGo, and after the close of business on January 31, 2017, the Company distributed approximately 26.9 million shares of GetGo common stock to the Company’s stockholders of record as of the close of business on January 20, 2017 (the “Record Date”). Immediately following the Distribution, Lithium Merger Sub, Inc., a wholly-owned subsidiary of LogMeIn, merged with and into GetGo, with GetGo as the surviving corporation (the “Merger”). In connection with the Merger, GetGo became a wholly-owned subsidiary of LogMeIn, and each share of GetGo common stock was converted into the right to receive one share of LogMeIn common stock. As a result of these transactions, the Company’s stockholders received approximately 26.9 million shares of LogMeIn common stock in the aggregate, or 0.171844291 of a share of LogMeIn common stock for each share of the Company’s common stock held of record by such stockholders on the Record Date. No fractional shares of LogMeIn were issued, and the Company’s stockholders instead received cash in lieu of any fractional shares.

The conversion period for the Convertible Notes that commenced on October 10, 2016 in connection with the Distribution terminated as of the close of business on January 31, 2017. As a result, the Convertible Notes were reclassified to Other liabilities from Current liabilities and the amount previously recorded as Temporary equity was reclassified to permanent equity as of January 31, 2017. The Distribution also resulted in an adjustment to the conversion rate for the Convertible Notes under the terms of the Indenture. As a result of this adjustment, the conversion rate for the Convertible Notes in effect as of the opening of business on February 1, 2017 is 13.9061 shares of the Company’s common stock per $1,000 principal amount of Convertible Notes, which corresponds to a conversion price of approximately $71.91 per share of common stock. Corresponding adjustments were made to the conversion rates for the Convertible Note Hedge and Warrant Transactions as of the opening of business on February 1, 2017.

In connection with the Distribution, the Company made certain adjustments to outstanding restricted stock unit and stock option awards with the intention of preserving the intrinsic value of the awards prior to the Distribution. There was no change to the vesting terms of these awards. As a result of these adjustments, the Company currently expects to incur incremental expense in the first quarter of 2017.

As a result of the separation of the GoTo Business, the Company has evaluated its existing tax attributes to reflect the continuing operations of the Company. The Company expects to record a $45.2 million charge to income tax expense in the first quarter of 2017 as a result of changes in its expectations of realizability of state R&D credits due directly to the separation of the GoTo Business. The Company will have less income subject to taxation in California, and therefore, the R&D credits will not be able to be utilized.

2017 Acquisition

On January 3, 2017, the Company acquired all of the issued and outstanding securities of Unidesk Corporation (“Unidesk”). Unidesk is the inventor of the Microsoft Windows application packaging and management technology known as layering. Citrix acquired Unidesk to enhance and provide a demonstrable difference in application management and delivery. By incorporating the Unidesk technology into XenApp and XenDesktop, Citrix will advance its industry leadership by offering the most powerful and easy to deploy application layering solution available for delivering and managing applications and desktops in the cloud, on-premises and in hybrid deployment environments. Unidesk will become part of the Company's Enterprise and Service Provider segment. The total preliminary cash consideration for this transaction was approximately $60.5 million, net of $2.7 million cash acquired. Transaction costs associated with the acquisition are currently estimated at $0.3 million, of which the Company expensed $0.3 million during the year ended December 31, 2016, which were included in General and administrative expense in the accompanying consolidated statements of income.