Income Taxes	3 Months Ended
Mar. 31, 2018
Income Taxes
Income Taxes	17. Income Taxes The Firm is under continuous examination by the IRS and other tax authorities in certain countries, such as Japan and the U.K., and in states in which it has significant business operations, such as New York. The Firm has established a liability for unrecognized tax benefits, and associated interest, if applicable (“tax liabilities”), that it believes is adequate in relation to the potential for additional assessments. Once established, the Firm adjusts such tax liabilities only when new information is available or when an event occurs necessitating a change. During the fourth quarter of 2017, the Firm agreed to proposed adjustments associated with the expected closure of the IRS field audits for tax years 2006-2008. The Firm expects final closure of these tax years in the second quarter of 2018. The Firm is currently at various levels of field examination with respect to audits by the IRS, as well as New York State and New York City, for tax years 2009-2012 and 2007-2014, respectively. The Firm believes that the resolution of the above tax matters will not have a material effect on the annual financial statements, although a resolution could have a material impact in the income statements and effective tax rate for any period in which such resolution occurs. Furthermore, by the end of the first quarter of 2018, the Firm reached a conclusion with the U.K. tax authorities on certain issues through tax year 2010, the resolution of which did not have a material impact on the annual financial statements or effective tax rate. See Note 11 regarding the Dutch Tax Authority’s challenge, in the District Court in Amsterdam (matters styled Case number 15/3637 and Case number 15/4353), of the Firm’s entitlement to certain withholding tax credits which may impact the balance of unrecognized tax benefits. It is reasonably possible that significant changes in the balance of unrecognized tax benefits occur within the next 12 months. At this time, however, it is not possible to reasonably estimate the expected change to the total amount of unrecognized tax benefits and the impact on the Firm’s effective tax rate over the next 12 months

The Firm is under continuous examination by the IRS and other tax authorities in certain countries, such as Japan and the U.K., and in states in which it has significant business operations, such as New York. The Firm has established a liability for unrecognized tax benefits, and associated interest, if applicable (“tax liabilities”), that it believes is adequate in relation to the potential for additional assessments. Once established, the Firm adjusts such tax liabilities only when new information is available or when an event occurs necessitating a change.

During the fourth quarter of 2017, the Firm agreed to proposed adjustments associated with the expected closure of the IRS field audits for tax years 2006-2008. The Firm expects final closure of these tax years in the second quarter of 2018. The Firm is currently at various levels of field examination with respect to audits by the IRS, as well as New York State and New York City, for tax years 2009-2012 and 2007-2014, respectively.

The Firm believes that the resolution of the above tax matters will not have a material effect on the annual financial statements, although a resolution could have a material impact in the income statements and effective tax rate for any period in which such resolution occurs.

Furthermore, by the end of the first quarter of 2018, the Firm reached a conclusion with the U.K. tax authorities on certain issues through tax year 2010, the resolution of which did not have a material impact on the annual financial statements or effective tax rate.

See Note 11 regarding the Dutch Tax Authority’s challenge, in the District Court in Amsterdam (matters styled Case number 15/3637 and Case number 15/4353), of the Firm’s entitlement to certain withholding tax credits which may impact the balance of unrecognized tax benefits.

It is reasonably possible that significant changes in the balance of unrecognized tax benefits occur within the next 12 months. At this time, however, it is not possible to reasonably estimate the expected change to the total amount of unrecognized tax benefits and the impact on the Firm’s effective tax rate over the next 12 months