2.2.0.25falsefalse30200 - Disclosure - Basis of Presentation and Significant Accounting Policies (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $FROM_Jan01_2010_TO_Dec31_2010http://www.sec.gov/CIK0001000697duration2010-01-01T00:00:002010-12-31T00:00:00SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170EPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2true0wat_AllowanceForDoubtfulAccountsAndSalesReturnsRollForwardAbstractwatfalsenadurationA roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringA roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.falsefalseAllowance for Doubtful Accounts and Sales Returns Roll Forward [Abstract]3false0wat_AllowanceForDoubtfulAccountsAndSalesReturnsRollForwardTextBlockwatfalsenadurationDisclosure of the reconciliation of the allowance for doubtful accounts and sales returns balance from the beginning of a...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00The following is a summary of the activity of the Company's allowance for doubtful accounts and sales returns for the years ended December 31, 2010, 2009 and 2008 (in thousands):<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Balance at</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Balance at</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Beginning</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">End of</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">of Period</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">Additions</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">Deductions</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">Period</td></tr><tr style="height: 17px"><td colspan="2" style="width: 247px; text-align:left;border-color:#000000;min-width:247px;">Allowance for Doubtful Accounts and Sales</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Returns:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:left;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">2010</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 6,723</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 5,508</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> (6,035)</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 6,196</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">2009</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 7,608</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 6,956</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> (7,841)</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 6,723</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">2008</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 9,634</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 5,470</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> (7,496)</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 7,608</td></tr></table></div>The following is a summary of the activity of the Company's allowance for doubtful accounts and sales returns for the years ended December 31, 2010, 2009 andfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclosure of the reconciliation of the allowance for doubtful accounts and sales returns balance from the beginning of a period to the end of a period.No authoritative reference available.falsefalseAllowance for Doubtful Accounts and Sales Returns Roll Forward4true0us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseFair Value of Assets and Liabilities Measured on a Recurring Basis [Abstract]5false0wat_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTextBlockwatfalsenadurationThis element represents the disclosure related to assets and liabilities, including financial instruments measured at fair...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2010 (in thousands):<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Quoted Prices</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">in Active</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Significant</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Markets</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Other</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Significant</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Total at</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">for Identical</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Observable</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Unobservable</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">December 31,</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;"> Assets</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Inputs</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Inputs</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">2010</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">(Level 1)</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">(Level 2)</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">(Level 3)</td></tr><tr style="height: 17px"><td colspan="3" style="width: 247px; text-align:left;border-color:#000000;min-width:247px;">Assets:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Cash equivalents</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 87,975</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 87,975</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Short-term investments</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 637,921</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 637,921</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Waters 401(k) Restoration Plan assets</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 19,988</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 19,988</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Foreign currency exchange contract</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">agreements</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 424</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 424</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 18px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">Total</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 746,308</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 746,308</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 13px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td colspan="3" style="width: 247px; text-align:left;border-color:#000000;min-width:247px;">Liabilities:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Foreign currency exchange contract</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">agreements</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 626</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 626</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 18px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">Total</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 626</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 626</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr></table></div>The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2009 (in thousands):<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Quoted Prices</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">in Active</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Significant</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:center;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Markets</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Other</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Significant</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Total at</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">for Identical</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Observable</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Unobservable</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">December 31,</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;"> Assets</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Inputs</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; text-align:center;border-color:#000000;min-width:82px;">Inputs</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:center;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">2009</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">(Level 1)</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">(Level 2)</td><td style="width: 12px; text-align:center;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 82px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:82px;">(Level 3)</td></tr><tr style="height: 17px"><td colspan="3" style="width: 247px; text-align:left;border-color:#000000;min-width:247px;">Assets:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Cash equivalents</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 181,925</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 181,925</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Short-term investments</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 289,146</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 289,146</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Waters 401(k) Restoration Plan assets</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 17,955</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> 17,955</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Foreign currency exchange contract</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">agreements</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 237</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 237</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 18px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">Total</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 489,263</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 489,263</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 18px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td colspan="3" style="width: 247px; text-align:left;border-color:#000000;min-width:247px;">Liabilities:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 235px; text-align:left;border-color:#000000;min-width:235px;">Foreign currency exchange contract</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 70px; text-align:right;border-color:#000000;min-width:70px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">agreements</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 400</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> 400</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr><tr style="height: 18px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 223px; text-align:left;border-color:#000000;min-width:223px;">Total</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 400</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> 400</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 70px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:70px;"> -</td></tr></table></div>The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2010 (infalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis element represents the disclosure related to assets and liabilities, including financial instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).No authoritative reference available.falsefalseFair Value of Assets and Liabilities Measured on a Recurring Basis6true0us-gaap_MovementInStandardProductWarrantyAccrualRollForwardus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringA roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.falsefalseWarranty Accrual Roll Forward [Abstract]7false0wat_WarrantyAccrualRollForwardTextBlockwatfalsenadurationDisclosure of the reconciliation of the warranty accrual balance from the beginning of a period to the end of a period.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00The following is a summary of the activity of the Company's accrued warranty liability for the years ended December 31, 2010, 2009 and 2008 (in thousands):<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 155px; text-align:left;border-color:#000000;min-width:155px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;">Balance at</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;">Balance at</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 155px; text-align:left;border-color:#000000;min-width:155px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;">Beginning</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;">Accruals for</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;">Settlements</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; text-align:center;border-color:#000000;min-width:102px;">End of</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 155px; text-align:left;border-color:#000000;min-width:155px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:102px;">of Period</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:102px;">Warranties</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:102px;">Made</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 102px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:102px;">Period</td></tr><tr style="height: 17px"><td colspan="2" style="width: 167px; text-align:left;border-color:#000000;min-width:167px;">Accrued warranty liability:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 90px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:90px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 90px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:90px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 90px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:90px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 90px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:90px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 155px; text-align:left;border-color:#000000;min-width:155px;">2010</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 10,109</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 7,618</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> (6,455)</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 11,272</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 155px; text-align:left;border-color:#000000;min-width:155px;">2009</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 10,276</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 5,725</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> (5,892)</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 10,109</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 155px; text-align:left;border-color:#000000;min-width:155px;">2008</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 13,119</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 9,644</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> (12,487)</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 90px; text-align:right;border-color:#000000;min-width:90px;"> 10,276</td></tr></table></div>The following is a summary of the activity of the Company's accrued warranty liability for the years ended December 31, 2010, 2009 and 2008 (infalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclosure of the reconciliation of the warranty accrual balance from the beginning of a period to the end of a period.No authoritative reference available.falsefalseWarranty Accrual Roll Forward16Basis of Presentation and Significant Accounting Policies (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue