Recently Adopted Accounting Standards	3 Months Ended
Mar. 30, 2018
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recently Adopted Accounting Standards	NOTE 2 – RECENTLY ADOPTED ACCOUNTING STANDARDS In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), a comprehensive new revenue recognition standard that supersedes nearly all existing revenue recognition guidance. The objective of ASU 2014-09 is for a company to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB deferred the effective date of ASU 2014-09 to the first quarter of 2018. An entity can elect to adopt ASU 2014-09 using one of two methods, either full retrospective adoption to each prior reporting period, or modified retrospective adoption by recognizing the cumulative effect of adoption at the date of initial application. Effective January 1, 2018, the Partnership adopted ASU 2014-09 using the modified retrospective method. As a result of adoption, there was no cumulative impact to Partnership capital as of January 1, 2018, no impact to total revenue for the quarter ended March 30, 2018 and no impact to the consolidated statements of financial condition as of March 30, 2018. There was a presentation change that did not impact the timing or amount of total revenue, net revenue or income before allocations to partners. See Note 3 for additional information. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10) – Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). ASU 2016-01 provides a comprehensive framework for the classification and measurement of financial assets and liabilities. The Partnership adopted ASU 2016-01 effective January 1, 2018 and adoption did not have a material impact on the Consolidated Financial Statements. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230) – Restricted Cash, a consensus of the FASB Emerging Issues Task Force (“ASU 2016-18”). ASU 2016-18 requires restricted cash to be included within cash and cash equivalents on the Consolidated Statements of Cash Flows. The Partnership's restricted cash represents cash segregated in special reserve bank accounts for the benefit of U.S. clients pursuant to the Customer Protection Rule 15c3-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The Partnership adopted ASU 2016-18 on a retrospective basis during the first quarter of 2018, which resulted in including restricted cash of $7,063, $7,691, $8,370 and $8,525 as of March 30, 2018, December 31, 2017, March 31, 2017 and December 31, 2016, respectively, to the cash and cash equivalents balances on the Consolidated Statements of Cash Flows.

NOTE 2 – RECENTLY ADOPTED ACCOUNTING STANDARDS

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), a comprehensive new revenue recognition standard that supersedes nearly all existing revenue recognition guidance. The objective of ASU 2014-09 is for a company to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB deferred the effective date of ASU 2014-09 to the first quarter of 2018. An entity can elect to adopt ASU 2014-09 using one of two methods, either full retrospective adoption to each prior reporting period, or modified retrospective adoption by recognizing the cumulative effect of adoption at the date of initial application. Effective January 1, 2018, the Partnership adopted ASU 2014-09 using the modified retrospective method. As a result of adoption, there was no cumulative impact to Partnership capital as of January 1, 2018, no impact to total revenue for the quarter ended March 30, 2018 and no impact to the consolidated statements of financial condition as of March 30, 2018. There was a presentation change that did not impact the timing or amount of total revenue, net revenue or income before allocations to partners. See Note 3 for additional information.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10) – Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). ASU 2016-01 provides a comprehensive framework for the classification and measurement of financial assets and liabilities. The Partnership adopted ASU 2016-01 effective January 1, 2018 and adoption did not have a material impact on the Consolidated Financial Statements.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230) – Restricted Cash, a consensus of the FASB Emerging Issues Task Force (“ASU 2016-18”). ASU 2016-18 requires restricted cash to be included within cash and cash equivalents on the Consolidated Statements of Cash Flows. The Partnership's restricted cash represents cash segregated in special reserve bank accounts for the benefit of U.S. clients pursuant to the Customer Protection Rule 15c3-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The Partnership adopted ASU 2016-18 on a retrospective basis during the first quarter of 2018, which resulted in including restricted cash of $7,063, $7,691, $8,370 and $8,525 as of March 30, 2018, December 31, 2017, March 31, 2017 and December 31, 2016, respectively, to the cash and cash equivalents balances on the Consolidated Statements of Cash Flows.