Subsequent Event	3 Months Ended
Mar. 31, 2012
Subsequent Event	Note 13 — Subsequent Event On April 19, 2012, Gartner, through a wholly-owned subsidiary, entered into a Takeover Bid Implementation Agreement with Ideas International Limited, (“Ideas International”), pursuant to which Gartner has agreed to commence an off market takeover bid to acquire 100% of the outstanding shares of Ideas International, on a fully diluted basis, for AUD 1.40 per share in cash. The aggregate consideration is AUD 20 million, which is equivalent to approximately US$20.7 million. Ideas International is an Australian corporation (ASX: IDE) headquartered outside of Sydney that provides intelligence on IT infrastructure configurations and pricing data to IT professionals. Ideas International has about 40 employees and for the fiscal year ended December 31, 2011 reported revenues of AUD 8.7 million (approximately US$9.0 million). The offer has been approved by the boards of directors of Gartner and Ideas International. However, completion of the transaction is subject to a number of conditions, including the tender to Gartner of not less than 90% of the outstanding shares of Ideas International. Assuming all these conditions are met, the transaction is expected to close in June 2012.

Subsequent Event

3 Months Ended

Mar. 31, 2012

Note 13 — Subsequent Event

On April 19, 2012, Gartner, through a wholly-owned subsidiary, entered into a Takeover Bid Implementation Agreement with Ideas International Limited, (“Ideas International”), pursuant to which Gartner has agreed to commence an off market takeover bid to acquire 100% of the outstanding shares of Ideas International, on a fully diluted basis, for AUD 1.40 per share in cash. The aggregate consideration is AUD 20 million, which is equivalent to approximately US$20.7 million. Ideas International is an Australian corporation (ASX: IDE) headquartered outside of Sydney that provides intelligence on IT infrastructure configurations and pricing data to IT professionals. Ideas International has about 40 employees and for the fiscal year ended December 31, 2011 reported revenues of AUD 8.7 million (approximately US$9.0 million).

The offer has been approved by the boards of directors of Gartner and Ideas International. However, completion of the transaction is subject to a number of conditions, including the tender to Gartner of not less than 90% of the outstanding shares of Ideas International. Assuming all these conditions are met, the transaction is expected to close in June 2012.