2.2.0.7 false Income taxes 0208 - Disclosure - Income taxes true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Income taxes [Abstract] 0 us-gaap_IncomeTaxExpenseBenefitAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Income taxes 1 us-gaap_IncomeTaxDisclosureTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="left" style="font-size: 10pt; margin-top: 10pt"><b>8. Income taxes</b> </div> <div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">We operate in numerous countries and tax jurisdictions around the world and many of the tax returns we have filed have not been audited. Accordingly, we could be exposed to additional income and other taxes. </div> <div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Our estimated income tax provision for the three and six months ended June 30, 2010 and 2009, results in an effective rate that differs from the U.S. federal statutory rate of 35% because of different tax rates in foreign tax jurisdictions and certain deductions and credits allowable for income tax purposes, offset by state and local income taxes and valuation allowances on net operating loss carryforwards that more likely than not will not be realized. Additionally, the devaluation of the Venezuelan bolivar on January 8, 2010, resulted in a 6.7 percentage point increase in our effective tax rate for the six months ended June 30, 2010. The devaluation of the Venezuelan bolivar had no impact on our effective tax rate for the three months ended June 30, 2010. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="center" style="font-size: 10pt; margin-top: 0pt"> </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Description containing the entire income tax disclosure. Examples include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 44, 45, 46, 47, 48, 49 false 1 2 false UnKnown UnKnown UnKnown false true