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v3.19.3.a.u2

Significant Accounting Policies (Details) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2016 | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |
Investment Banking And Investment Management Receivables Collection Periods |  | 90 days |  |
Placement Fees Receivables Collection Period |  | 180 days |  |
Private Funds Capital Raising Receivables Collection Period |  | 1 year |  |
Collection Period For Restructuring Transactions |  | 90 days |  |
Receivables Reflected in Other Assets in Excess of Period |  | 1 year |  |
Contract Asset Recognized For Cost of Obtaining Contract With Benefit in Excess of Period |  | 1 year |  |
Other Operating Expenses |  | $ 42,020 | $ 30,461 | $ 23,442
Professional Fees |  | 81,851 | 82,393 | 63,857
Net Realized And Unrealized Gains On Private Equity Fund Investments |  | (790) | (397) | (915)
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Consolidated Assets |  | 227,885 | 190,223 |
Consolidated Liabilities |  | $ 129,494 | $ 122,460 |
Execution, Clearing and Custody Fees [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Other Operating Expenses |  |  |  | 13,572
Professional Fees |  |  |  | 1,206
Other Revenue, Including Interest and Investments [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Principal Trading Losses |  |  |  | (701)
Net Realized And Unrealized Gains On Private Equity Fund Investments |  |  |  | $ 2,037
LP Units [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Limited Partnership Units Convertible Conversion Ratio | 1 | 1 |  |
Minimum [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 3 years |  |
Award Vesting Period |  | 1 year |  |
Maximum [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 7 years |  |
Award Vesting Period |  | 5 years |  |

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