2.2.0.25falsefalse0209 - Disclosure - Convertible Senior Subordinated Notestruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0001107332duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_ConvertibleSubordinatedDebtCurrentAndNoncurrentAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseConvertible Senior Subordinated Notes [Abstract]3false0dndn_ConvertibleSeniorSubordinatedNotesTextBlockdndnfalsenadurationConvertible Senior Subordinated Notes.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00  <div style="margin-left: 0%"> <table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left"> <tr> <td width="3%"></td> <td width="97%"></td> </tr> <tr valign="top"> <td> <b><font style="font-family: 'Times New Roman', Times">9.  </font></b> </td> <td> <b><font style="font-family: 'Times New Roman', Times">CONVERTIBLE SENIOR SUBORDINATED NOTES</font></b> </td> </tr> </table> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> In 2007, an aggregate of $85.3 million of the 2014 Notes were sold in a private placement to qualified institutional buyers. Proceeds from the offering, after deducting placement agent fees and our estimated expenses, were approximately $82.3 million. The 2014 Notes were issued at face principal amount and pay interest semi-annually in arrears on June 15 and December 15 of each year. Record dates for payment of interest on the 2014 Notes are each June 1st and December 1st. In certain circumstances, additional amounts may become due as additional interest. We can elect that the sole remedy for an event of default for our failure to comply with the “reporting obligations” provisions of the indenture under which the 2014 Notes were issued (the “Indenture”), for the first 180 days after the occurrence of such event of default would be for the holders of the 2014 Notes to receive additional interest on the 2014 Notes at an annual rate equal to 1% of the outstanding principal amount of the 2014 Notes. We recorded interest expense, including the amortization of debt issuance costs related to the 2014 Notes, of $3.9 million, $2.9 million and $4.5 million during 2010, 2009 and 2008, respectively. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> The 2014 Notes are convertible into our common stock, initially at the conversion price of $10.28 per share, equal to a conversion rate of approximately 97.2644 shares per $1,000 principal amount of the 2014 Notes, subject to adjustment. There may be an increase in the conversion rate of the 2014 Notes under certain circumstances described in the Indenture; however, the number of shares of common stock issued will not exceed 114.2857 per $1,000 principal amount of the 2014 Notes, or approximately 3.2 million shares. A holder that converts 2014 Notes in connection with a “fundamental change,” as defined in the Indenture, may in some circumstances be entitled to an increased conversion rate (i.e., a lower per share conversion price) as a make whole premium. If a fundamental change occurs, holders of the 2014 Notes may require us to repurchase all or a portion of their 2014 Notes for cash at a repurchase price equal to 100% of the principal amount of the 2014 Notes to be repurchased, plus any accrued and unpaid interest and other amounts due thereon. The Indenture contains customary covenants. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> In April 2009, $11.5 million in principal amount of the 2014 Notes were converted by holders of the 2014 Notes, resulting in the issuance of approximately 1.1 million shares of common stock. In May 2009, we exchanged approximately 2.1 million shares of our common stock for $21.2 million principal face amount of the 2014 Notes. In December 2010, we exchanged approximately 2.5 million shares of common stock for $24.9 million principal face amount of the 2014 Notes, which included a premium of approximately 129,000 shares of common stock. The premium is recorded as a loss on debt conversion of $4.7 million, in other expense in the consolidated statements of operations for 2010. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> We have identified embedded derivatives associated with the 2014 Notes. These embedded derivatives meet certain criteria and are therefore not required to be accounted for separately from the 2014 Notes. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> As of December 31, 2010 and 2009, the aggregate principal amount of the 2014 Notes outstanding was $27.7 million and $52.5 million, respectively. The fair value of the 2014 Notes at December 31, 2010 and December 31, 2009, based on the average trading prices of similar instruments near each respective year-end, was approximately $98.0 million and $141.8 million, respectively. </div> </div>  <!-- Begin Block Tagged NotefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringConvertible Senior Subordinated Notes.No authoritative reference available.falsefalseCONVERTIBLE SENIOR SUBORDINATED NOTES12Convertible Senior Subordinated NotesUnKnownUnKnownUnKnownUnKnownfalsetrue