2.2.0.7 false Share-Based Compensation 10701 - Disclosure - Share-Based Compensation true false false false 1 USD false false Unit12 Standard http://www.xbrl.org/2003/instance pure xbrli 0 Unit1 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Share-Based Compensation 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 Share-Based Compensation 1 esv_ShareBasedCompensationTextBlock esv false na duration Share-Based Compensation [Text Block] false false false false false false false false false false false terselabel false 1 false false false false 0 0 <div> <div style="width: 800px;"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="justify"><font style="display: inline; font-family: Times New Roman; font-size: 11pt; font-weight: bold;" class="_mt">Note 7 - Share-Based Compensation</font></div> <div style="text-indent: 0pt; display: block;"> </div> <div style="text-align: justify; text-indent: 0pt; display: block;"><font style="display: inline; font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; letter-spacing: 5pt; font-size: 11pt;" class="_mt">   </font><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt">During the quarter ended June 30, 2010, we granted <font class="_mt">560,354</font> non-vested share awards to our employees, officers and non-employee directors for annual equity awards and for equity awards granted to new or recently promoted employees, pursuant to our 2005 Long-Term Incentive Plan</font> ("LTIP").  Grants of non-vested share awards generally vest at a rate of <font class="_mt">20</font>% per year, as determined by a committee of the Board of Directors.  Non-vested share awards granted to certain officers vest at a rate of <font class="_mt">33</font>% per year. All non-vested share awards have voting and dividend rights effective on the date of grant and are measured using the market value of our shares on the date of grant. The weighted-average grant-date fair value of non-vested share awards granted during the quarter ended June 30, 2010 was $<font class="_mt">35.11</font> per share.  All non-vested share award grants were issued out of treasury.</font></font></font></div> <div style="text-align: justify; text-indent: 0pt; display: block;"><font style="display: inline; font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="letter-spacing: 5pt;" class="_mt"> <font style="font-family: Times New Roman; font-size: 11pt;" class="_mt">  </font></font></font></div> <div> <div style="text-align: justify; text-indent: 0pt; display: block;"> <div style="text-align: justify; text-indent: 0pt; display: block;"><font style="display: inline; font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="display: inline; font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; letter-spacing: 5pt; font-size: 11pt;" class="_mt">   </font> During the quarter ended June 30, 2010, we granted <font class="_mt">160,293</font> share options to certain officers as annual equity awards made pursuant to our LTIP.  The share options granted become exercisable in annual <font class="_mt">33</font>% increments over a three-year period and, to the extent not exercised, expire on the seventh anniversary of the date of grant. The following table summarizes the value of share options granted during the quarter ended June 30, 2010 (per share):</font></font></font></font></div> <div style="text-indent: 0pt; display: block;"> </div> <div align="center"> <table style="font-family: times new roman; font-size: 10pt;" cellspacing="0" cellpadding="0" width="75%"> <tr bgcolor="#cceeff"><td valign="bottom" width="84%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">Weighted-average grant-date fair value</font></div></td> <td valign="bottom" width="2%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td> <td valign="bottom" width="13%" align="right"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="right"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">$11.05</font></div></td> <td valign="bottom" width="1%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td></tr> <tr bgcolor="white"><td valign="bottom" width="84%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">Weighted-average exercise price</font></div></td> <td valign="bottom" width="2%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td> <td valign="bottom" width="13%" align="right"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="right"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">$34.45</font></div></td> <td valign="bottom" width="1%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td></tr></table></div> <div style="text-align: left;"> </div><font style="display: inline; font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; letter-spacing: 5pt; font-size: 11pt;" class="_mt">   </font> The exercise price of share options granted during the period equals the market value of the underlying stock on the date of grant. The fair value of each option award was estimated on the date of grant using the Black-Scholes option valuation model with the following weighted-average assumptions for the quarter ended June 30, 2010:</font></font></font></div> <div style="text-indent: 0pt; display: block;"> </div> <div align="center"> <table style="font-family: times new roman; font-size: 10pt;" cellspacing="0" cellpadding="0" width="75%"> <tr bgcolor="#cceeff"><td valign="bottom" width="90%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">Risk-free interest rate</font></div></td> <td valign="bottom" width="2%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td> <td valign="bottom" width="7%" align="right"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="right"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">1.8</font></div></td> <td valign="bottom" width="1%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">%</font></div></td></tr> <tr bgcolor="white"><td valign="bottom" width="90%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">Expected life (in years)</font></div></td> <td valign="bottom" width="2%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td> <td valign="bottom" width="7%" align="right"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="right"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">4.01</font></div></td> <td valign="bottom" width="1%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td></tr> <tr bgcolor="#cceeff"><td valign="bottom" width="90%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">Expected volatility</font></div></td> <td valign="bottom" width="2%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td> <td valign="bottom" width="7%" align="right"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="right"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">53.1</font></div></td> <td valign="bottom" width="1%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">%</font></div></td></tr> <tr bgcolor="white"><td valign="bottom" width="90%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">Dividend yield</font></div></td> <td valign="bottom" width="2%" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">  </font></td> <td valign="bottom" width="7%" align="right"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="right"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">4.1</font></div></td> <td valign="bottom" width="1%" align="left"> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: times new roman; font-size: 11pt;" class="_mt">%</font></div></td></tr></table></div> <div style="text-indent: 0pt; display: block;"> </div></div> <div style="text-align: justify;"><font style="display: inline; font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; font-size: 11pt;" class="_mt"><font style="font-family: Times New Roman; letter-spacing: 5pt; font-size: 11pt;" class="_mt">   </font> Expected volatility is based on the historical volatility in the market price of our shares over the period of time equivalent to the expected term of the options granted. The expected term of options granted is derived from historical exercise patterns over a period of time equivalent to the contractual term of the options granted. We have not experienced significant differences in the historical exercise patterns among officers, employees and non-employee directors for them to be considered separately for valuation purposes. The risk-free interest rate is based on the implied yield of U.S. Treasury zero-coupon issues on the date of grant with a remaining term approximating the expected term of the options granted.</font></font></font></div></div> </div> Note 7 - Share-Based Compensation      During the quarter ended June 30, 2010, we granted 560,354 non-vested share awards to our false false false us-types:textBlockItemType textblock Share-Based Compensation [Text Block] No authoritative reference available. false 1 2 false UnKnown UnKnown UnKnown false true