Basis Of Presentation And Changes In Significant Accounting Policies (Policy)	9 Months Ended
Sep. 30, 2011
Basis Of Presentation And Changes In Significant Accounting Policies [Abstract]
Basis Of Presentation	*Basis of Presentation* The accompanying unaudited condensed consolidated financial statements include the accounts of Tekelec and our wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The accompanying unaudited condensed consolidated financial statements have been prepared on substantially the same basis as the audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2010. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles in the United States have been condensed or omitted pursuant to the instructions for Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of our consolidated financial condition and consolidated results of operations. The results of operations for the current interim period are not necessarily indicative of results for the current year. We operate under a thirteen-week calendar quarter. For financial statement presentation purposes, the reporting periods are referred to as ended on the last calendar day of the quarter. The accompanying unaudited condensed consolidated financial statements for the three and nine months ended September 30, 2011 and 2010 are for the thirteen and thirty-nine weeks ended September 30, 2011 and October 1, 2010, respectively. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements for the year ended December 31, 2010 and the notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2010.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements include the accounts of Tekelec and our wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The accompanying unaudited condensed consolidated financial statements have been prepared on substantially the same basis as the audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2010. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles in the United States have been condensed or omitted pursuant to the instructions for Form 10-Q and Article 10 of Regulation S-X.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of our consolidated financial condition and consolidated results of operations. The results of operations for the current interim period are not necessarily indicative of results for the current year.

We operate under a thirteen-week calendar quarter. For financial statement presentation purposes, the reporting periods are referred to as ended on the last calendar day of the quarter. The accompanying unaudited condensed consolidated financial statements for the three and nine months ended September 30, 2011 and 2010 are for the thirteen and thirty-nine weeks ended September 30, 2011 and October 1, 2010, respectively.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements for the year ended December 31, 2010 and the notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2010.