2.2.0.25falsefalse1042 - Disclosure - STOCK-BASED COMPENSATION (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) / shares USD ($) $eol_PE727-----1010-K0008_STD_365_20101231_0http://www.sec.gov/CIK0000060751duration2010-01-01T00:00:002010-12-31T00:00:00iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170YearStandardhttp://www.lubrizol.com/20101231Yearlz0pureStandardhttp://www.xbrl.org/2003/instancepure0sharesStandardhttp://www.xbrl.org/2003/instanceshares0MonthStandardhttp://www.lubrizol.com/20101231Monthlz0USDUSD$5false0lz_ScheduleOfShareBasedCompensationOptionsActivityTextBlocklzfalsenadurationSchedule of Share-based Compensation, Options Activity.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> Options outstanding as of December 31, 2010, and changes during the year ended December 31, 2010, were as follows:   <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td width="83%"></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Shares Underlying Options</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Weighted- Average Exercise Price</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Outstanding, January 1, 2010 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,160,852</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">37.23</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> Granted </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">91,800</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">78.18</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Exercised </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(745,011</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">36.38</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> Expired </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(1,000</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">28.13</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Outstanding, December 31, 2010 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,506,641</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">40.16</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td valign="top"> Options exercisable, December 31, 2010 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,155,041</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">38.55</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> </table> </div>Options outstanding as of December 31, 2010, and changes during the year ended December 31, 2010, were asfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule of Share-based Compensation, Options Activity.No authoritative reference available.falsefalseSchedule of Share-based Compensation, Options Activity6false0us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> The following table summarizes information about stock options outstanding at December 31, 2010:   <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td width="57%"></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="10" align="center">Options Outstanding</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="6" align="center">Options Exercisable</td> <td valign="bottom"> </td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" nowrap="nowrap">Range of Exercise Prices</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Number Outstanding</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Weighted- Average Remaining Contractual Life</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Weighted- Average Exercise Price</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Number Exercisable</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Weighted- Average Exercise Price</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> $ 20 – $ 30 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">346,100</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">8.2 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 27.77</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">138,050</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 27.77</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> $ 30 – $ 40 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">641,466</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.5 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 33.88</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">641,466</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 33.88</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> $ 40 – $ 50 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">153,100</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5.0 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 43.07</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">153,100</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 43.07</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> $ 50 – $ 60 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">274,175</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.7 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 56.12</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">222,425</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 55.58</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> $ 70 – $ 80 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">91,800</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">9.2 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 78.18</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">–   </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> –   </td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td valign="top"></td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,506,641</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,155,041</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> </table> </div>The following table summarizes information about stock options outstanding atfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringAll required disclosures by grouped ranges of option exercise prices, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph f falsefalseSchedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range7false0lz_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMethodUsedTextBlocklzfalsenadurationFor each plan, identification of the award pricing model or other valuation method used in calculating the weighted average...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> The weighted-average assumptions used to value the stock options granted during 2010, 2009 and 2008 were as follows:   <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td width="80%"></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">2010</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">2009</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">2008</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Risk-free interest rate </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3.3%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.8%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3.5%</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> Dividend yield </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1.6%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4.5%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.1%</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Expected volatility </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">30.3%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">27.9%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">20.0%</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> Expected life (years) </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.5</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.5</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.5</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Weighted-average fair value of options granted during the year </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 23.84</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 5.03</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 12.27</td> </tr> </table> </div>The weighted-average assumptions used to value the stock options granted during 2010, 2009 and 2008 were asfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringFor each plan, identification of the award pricing model or other valuation method used in calculating the weighted average fair values disclosed. The model is also used to calculate the compensation expense that is shown within the balance sheet, income statement, and cash flow. Examples of valuation techniques are lattice models (binomial model), closed-form models (Black-Scholes-Merton formula), and a Monte Carlo simulation technique. Fair value is the amount at which an asset (or liability) could be bought (or incurred) or sold (or settled) in a current transaction between willing parties, that is, other than in a forced or liquidation sale. May include disclosures about the assumptions underlying application of the method selected.No authoritative reference available.falsefalseShare-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used8false0lz_UnvestedPerformanceStockUnitsDisclosureTextBlocklzfalsenadurationUnvested Performance-Based Stock Units Disclosure [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> Nonvested performance-based share units at December 31, 2010, and changes during the year ended December 31, 2010, were as follows:   <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td width="84%"></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="3%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Share Units</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Weighted- Average Grant Date Fair Value</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Nonvested at January 1, 2010 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">774,578 </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 36.15</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> Granted </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">106,500 </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 78.18</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Performance increase </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">106,500 </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 78.18</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> Vested </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(127,760</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 58.45</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Forfeited </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(4,684</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 42.14</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-TOP: #000000 1px solid" valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td valign="top"> Nonvested at December 31, 2010 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">855,134 </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 43.25</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td style="BORDER-TOP: #000000 3px double" valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> </table> </div>Nonvested performance-based share units at December 31, 2010, and changes during the year ended December 31, 2010, were asfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringUnvested Performance-Based Stock Units Disclosure [Text Block]No authoritative reference available.falsefalseUnvested Performance Stock Units Disclosure9false0lz_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestTextBlocklzfalsenadurationShare Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> The following table identifies the number of performance-based share units expected to be issued based on current expectations of performance at December 31, 2010:   <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td width="83%"></td> <td valign="bottom" width="4%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="4%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" nowrap="nowrap">Performance Period</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Expected Number of Units to be Issued</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">   </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Weighted- Average Grant Date Fair Value</td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> 2008 – 2010 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">211,240</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 58.45</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr> <td valign="top"> 2009 – 2011 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">559,814</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 27.77</td> <td valign="bottom" nowrap="nowrap">  </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> 2010 – 2012 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">211,840</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right"> 78.18</td> </tr> </table> </div>The following table identifies the number of performance-based share units expected to be issued based on current expectations of performance atfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringShare Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest [Text Block]No authoritative reference available.falsefalseShare Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest15STOCK-BASED COMPENSATION (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue