2.2.0.7 false Stock-Based Compensation 0204 - Disclosure - Stock-Based Compensation true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Stock-Based Compensation [Abstract] 0 us-gaap_ShareBasedCompensationAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Stock-Based Compensation 1 us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <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">4.  </font></b> </td> <td> <b><font style="font-family: 'Times New Roman', Times">Stock-Based Compensation</font></b> </td> </tr> </table> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b><i><font style="font-family: 'Times New Roman', Times">Stock Incentive Plans</font></i></b> </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 June 2010, the Company’s stockholders approved an increase in the total number of shares of common stock issuable under the Company’s Amended and Restated 2004 Stock Incentive Plan (the “2004 Plan”) from 10,500,000 to 12,000,000. As of September 30, 2010, approximately 4.5 million shares of common stock were available for future grants under the 2004 Plan and no options were available for future grants under the Company’s Amended and Restated Stock Incentive Plan adopted in 1998. Awards granted under the 2004 Plan generally vest over a three to four-year period and have an eight to ten-year expiration period. </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 compensation cost that has been recognized in the unaudited consolidated statements of operations for the Company’s stock incentive plans was $12.0 million and $14.9 million for the nine months ended September 30, 2009 and 2010, respectively. The total excess tax benefits recognized for stock-based compensation arrangements was $0.8 million and $2.8 million for the nine months ended September 30, 2009 and 2010, respectively and are classified as a financing cash inflow with a corresponding operating cash outflow. For stock subject to graded vesting, the Company uses the straight-line method for allocating compensation expense by period. </div> <div style="margin-top: 12pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b><i><font style="font-family: 'Times New Roman', Times">Stock Options</font></i></b> </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"> A summary of stock option activity under the Company’s stock incentive plans as of September 30, 2010, and changes during the nine months then ended are as follows (aggregate intrinsic value in thousands): </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <table border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left">  <tr style="font-size: 1pt" valign="bottom"> <td width="56%"> </td> <td width="2%"> </td> <td width="1%" align="right"> </td> <td width="8%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="12%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="10%" align="right"> </td> <td width="1%" align="left"> </td> </tr>   <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Number of<br /> </b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Weighted Average<br /> </b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Aggregate<br /> </b> </td> <td>   </td> </tr> <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Shares</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Price/Share</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Intrinsic Value</b> </td> <td>   </td> </tr> <tr style="line-height: 3pt; font-size: 1pt"> <td>  </td> </tr>  <tr valign="bottom" style="background: #cceeff"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Exercisable at December 31, 2009 </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 2,141,431 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 28.01 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Outstanding at December 31, 2009 </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 4,607,782 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 29.83 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Granted </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 1,058,500 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 38.62 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Exercised </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> (1,019,162 </td> <td nowrap="nowrap" align="left" valign="bottom"> ) </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 24.52 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 17,821 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Cancelled </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> (218,306 </td> <td nowrap="nowrap" align="left" valign="bottom"> ) </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 33.53 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="font-size: 1pt"> <td>   </td> <td>   </td> <td style="border-top: 1px solid #000000">   </td> <td style="border-top: 1px solid #000000">   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr valign="bottom"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Outstanding at September 30, 2010 </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 4,428,814 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 32.97 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 19,035 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="font-size: 1pt"> <td>   </td> <td>   </td> <td style="border-top: 3px double #000000">   </td> <td style="border-top: 3px double #000000">   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Exercisable at September 30, 2010 </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 2,041,186 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 31.07 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 11,689 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="font-size: 1pt"> <td>   </td> <td>   </td> <td style="border-top: 3px double #000000">   </td> <td style="border-top: 3px double #000000">   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr valign="bottom"> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> </table> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> </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 weighted average remaining contractual lives for all options outstanding under the Company’s stock incentive plans at September 30, 2009 and 2010 were 5.6 and 5.7 years, respectively. The weighted average remaining contractual lives for exercisable stock options at September 30, 2009 and 2010 were 4.7 and 4.8 years, respectively. As of September 30, 2010, there was approximately $30.1 million of total unrecognized compensation cost related to outstanding but unvested stock options. The cost is expected to be recognized through September 2014 with a weighted average recognition period of approximately 1.4 years. </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 Company recognizes compensation expense for share-based awards based on estimated fair values on the date of grant. The weighted average fair value of the options at the date of grant for the nine months ended September 30, 2009 and 2010 was $12.37 and $15.60, respectively. The fair value of options that vested during the nine months ended September 30, 2009 and 2010 was $10.5 million and $12.2 million, respectively. The fair value of each option is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions for stock options granted during the three and nine months ended September 30, 2009 and 2010: </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <table border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left">  <tr style="font-size: 1pt" valign="bottom"> <td width="57%"> </td> <td width="2%"> </td> <td width="1%" align="right"> </td> <td width="6%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="6%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="6%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="6%" align="right"> </td> <td width="1%" align="left"> </td> </tr>   <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="6" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Three Months Ended September 30,</b> </td> <td>   </td> <td>   </td> <td colspan="6" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Nine Months Ended September 30,</b> </td> <td>   </td> </tr> <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>2009</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>2010</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>2009</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>2010</b> </td> <td>   </td> </tr> <tr style="line-height: 3pt; font-size: 1pt"> <td>  </td> </tr>  <tr valign="bottom" style="background: #cceeff"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Dividend yield </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 0 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 0 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 0 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 0 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> </tr> <tr valign="bottom"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Expected volatility </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 47.2 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 43.8 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 47.5 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 44.7 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Risk-free interest rate </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 2.5 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 1.6 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 1.8 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 2.1 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> </tr> <tr valign="bottom"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Expected life of options </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 4.9 years </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 4.6 years </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 4.9 years </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 4.7 years </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Forfeiture rate </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 18.5 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 14.7 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 15.0 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 12.8 </td> <td nowrap="nowrap" align="left" valign="bottom"> % </td> </tr> </table> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> </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"> <i>Dividend yield</i> — The Company has never declared or paid dividends on its common stock and does not anticipate paying dividends in the foreseeable future. </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"> <i>Expected volatility</i> — Volatility is a measure of the amount by which a financial variable such as a share price has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. The Company uses the daily historical volatility of its stock price over the expected life of the options to calculate the expected volatility. </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"> <i>Risk-free interest rate</i> — The average U.S. Treasury rate (for a term that most closely approximates the expected life of the option) during the period in which the option was granted. </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"> <i>Expected life of the options</i> — The period of time that the equity grants are expected to remain outstanding. For grants that have been exercised, the Company uses actual exercise data to estimate option exercise timing. For grants that have not been exercised, the Company generally uses the midpoint between the end of the vesting period and the contractual life of the grant to estimate option exercise timing. Options granted during the three and nine months ended September 30, 2009 and 2010 have a maximum term of eight years. </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"> <i>Forfeiture rate</i> — The estimated percentage of equity grants that are expected to be forfeited or cancelled on an annual basis before becoming fully vested. The Company estimates the forfeiture rate based on past turnover data, level of employee receiving the equity grant and vesting terms and revises the rate if subsequent information, such as the passage of time, indicates that the actual number of options that will vest is likely to differ from previous estimates. The cumulative effect on current and prior periods of a change in the estimated number of options likely to vest is recognized in compensation cost in the period of the change. </div> <div style="margin-top: 12pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b><i><font style="font-family: 'Times New Roman', Times">Restricted Stock and Restricted Stock Units</font></i></b> </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"> Restricted stock is a stock award subject to a risk of forfeiture that entitles the holder to receive shares of the Company’s common stock as the award vests over time. A restricted stock unit is a stock award that entitles the holder to receive shares of the Company’s common stock after a vesting requirement is satisfied. The Company estimates the fair value of each restricted stock award and restricted stock unit award using the intrinsic value method which is based on the closing price of the common stock on the date of grant. The Company recognizes compensation expense for restricted stock and restricted stock unit awards over the vesting period on a straight-line basis. </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 September 30, 2010, there was approximately $18.7 million of total unrecognized compensation cost related to outstanding but unvested restricted stock and restricted stock unit awards. The cost is expected to be recognized through December 2015 with a weighted average recognition period of approximately 2.2 years. </div>  </div>   <div style="margin-left: 0%">  <div align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b> <font style="font-family: 'Times New Roman', Times"> </font> </b> </div> <div style="margin-top: 0pt; font-size: 1pt"> </div> <div align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b> <font style="font-family: 'Times New Roman', Times"> </font> </b> </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"> A summary of restricted stock and restricted stock unit activity under the Company’s stock incentive plans as of September 30, 2010, and changes during the nine months then ended are as follows (aggregate intrinsic value in thousands): </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <table border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left">  <tr style="font-size: 1pt" valign="bottom"> <td width="58%"> </td> <td width="2%"> </td> <td width="1%" align="right"> </td> <td width="6%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="12%" align="right"> </td> <td width="1%" align="left"> </td> <td width="3%"> </td> <td width="1%" align="right"> </td> <td width="10%" align="right"> </td> <td width="1%" align="left"> </td> </tr>   <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Weighted Average<br /> </b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> </tr> <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Number of<br /> </b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Fair Value/<br /> </b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom"> <b>Aggregate<br /> </b> </td> <td>   </td> </tr> <tr style="font-size: 8pt" valign="bottom" align="center"> <td nowrap="nowrap" align="center" valign="bottom">   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Shares</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Share</b> </td> <td>   </td> <td>   </td> <td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"> <b>Intrinsic Value</b> </td> <td>   </td> </tr> <tr style="line-height: 3pt; font-size: 1pt"> <td>  </td> </tr>  <tr valign="bottom" style="background: #cceeff"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Unvested at December 31, 2009 </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 500,250 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 34.67 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Granted </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 244,600 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 37.91 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Vested and issued </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> (68,250 </td> <td nowrap="nowrap" align="left" valign="bottom"> ) </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 29.41 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom"> <td nowrap="nowrap" align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Cancelled </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> (53,250 </td> <td nowrap="nowrap" align="left" valign="bottom"> ) </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 35.48 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="font-size: 1pt"> <td>   </td> <td>   </td> <td style="border-top: 1px solid #000000">   </td> <td style="border-top: 1px solid #000000">   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td align="left" valign="bottom"> <div style="text-indent: -10pt; margin-left: 10pt"> Unvested at September 30, 2010 </div> </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom"> 623,500 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 36.45 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom"> $ </td> <td nowrap="nowrap" align="right" valign="bottom"> 22,466 </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> <tr valign="bottom" style="font-size: 1pt"> <td>   </td> <td>   </td> <td style="border-top: 3px double #000000">   </td> <td style="border-top: 3px double #000000">   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr valign="bottom"> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td>   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> <td nowrap="nowrap" align="right" valign="bottom">   </td> <td nowrap="nowrap" align="left" valign="bottom">   </td> </tr> </table> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"> </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Disclosure of compensation-related costs for share-based compensation which may include disclosure of policies, compensation plan details, allocation of stock compensation, incentive distributions, share-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 false 1 2 false UnKnown UnKnown UnKnown false true