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v3.20.1

Share-Based and Other Deferred Compensation (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 15, 2020 shares | Jun. 30, 2019 USD ($) shares | Nov. 30, 2017 USD ($) shares | Jul. 31, 2017 vote shares | Nov. 30, 2016 USD ($) tranche Number_Of_Anniversaries shares | Mar. 31, 2020 USD ($) payment_installment Installments $ / shares shares | Mar. 31, 2019 USD ($) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) | Dec. 31, 2016 shares | Dec. 31, 2017 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Limited Partners' Capital Account, Units Outstanding | shares |  |  |  |  |  | 0 |  |  |  |  |
Deferred Compensation Arrangement Compensation Expense |  |  |  |  |  | $ 25,580 | $ 27,393 |  |  |  |
Headcount Reductions (as a percent) |  |  |  |  |  | 6.00% |  |  |  |  |
Severance Costs |  |  |  |  |  | $ 16,431 | $ 3,275 |  |  |  |
LP Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Limited Partnership Units Convertible Conversion Ratio |  |  |  |  | 1 | 1 |  |  |  |  |
2016 Stock Incentive Plan [Member] | Class A [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Additional Shares Authorized (in shares) | shares |  |  |  |  |  |  |  |  |  | 10,000,000 |
Number of Shares Available for Grant (in shares) | shares |  |  |  |  |  | 1,002,000 | 2,901,000 |  |  |  |
Long Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement Compensation Expense |  |  |  |  |  | $ (6,810) | $ 8,410 |  |  |  |
Long Term Incentive Plan Performance Period (in years) |  |  |  |  |  | 4 years |  |  |  |  |
Number of Payment Installments | payment_installment |  |  |  |  |  | 3 |  |  |  |  |
Deferred Compensation Arrangement with Individual, Distribution Paid |  |  |  |  |  |  | 19,516 |  |  |  |
Long Term Incentive Plan [Member] | Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Recorded Liability |  |  |  |  |  | $ 30,131 |  |  |  |  |
Long Term Incentive Plan [Member] | Noncurrent Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Recorded Liability |  |  |  |  |  | 60,263 |  |  |  |  |
Class J LP Units [Member] | Acquisition Related [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares Vested During Period (in shares) | shares | 223,000 |  |  |  |  |  |  |  |  |  |
Class I-P Units [Member] | Board of Directors Chairman [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Compensation Expense |  |  |  |  |  | 1,152 | 1,139 |  |  |  |
Grant of I-P Units (in units) | shares |  |  |  |  | 400,000 |  |  |  |  |  |
Retirement Notice Requirement |  |  |  |  | 1 year |  |  |  |  |  |
Number of Tranches of Class I-P Units | tranche |  |  |  |  | 2 |  |  |  |  |  |
Number of Class I-P Units in Each Tranche (in units) | shares |  |  |  |  | 200,000 |  |  |  |  |  |
Number of Consecutive Trading Days Required for Class I-P Units to Exceed Thresholds |  |  |  |  | 20 days |  |  |  |  |  |
Grant of I-P Units, Fair Value of Award |  |  |  |  | $ 24,412 |  |  |  |  |  |
Class K-P Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Compensation Expense |  |  |  |  |  | $ 1,093 | 296 |  |  |  |
Limited Partnership Units Convertible Conversion Ratio |  |  |  |  |  | 1 |  |  |  |  |
Grant of K-P Units (in units) | shares |  | 220,000 | 64,000 |  |  |  |  |  |  |  |
K-P Units to be Granted Upon Achievement of Benchmarks (in units) | shares |  |  | 16,000 |  |  |  |  |  |  |  |
Grant of K-P Units, Fair Value of Award |  | $ 14,104 | $ 6,250 |  |  |  |  |  |  |  |
Class K-P Units [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Grant of K-P Units (in units) | shares |  | 120,000 |  |  |  |  |  |  |  |  |
Class K-P Units [Member] | Share-based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Grant of K-P Units (in units) | shares |  | 100,000 |  |  |  |  |  |  |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation, Vesting Period (in years) |  |  |  |  |  | 4 years |  |  |  |  |
Restricted Stock Units (RSUs) [Member] | 2006 and 2016 Stock Incentive Plans [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Compensation Expense |  |  |  |  |  | $ 50,297 | 55,618 |  |  |  |
Shares Vested During Period (in shares) | shares |  |  |  |  |  | 2,372,000 |  |  |  |  |
Shares Forfeited During Period (in shares) | shares |  |  |  |  |  | 33,000 |  |  |  |  |
Restricted Stock Units (RSUs) [Member] | 2016 Stock Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares Issued During Period (in shares) | shares |  |  |  |  |  | 1,904,000 |  |  |  |  |
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares |  |  |  |  |  | $ 81.44 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grant Date Weighted Average Fair Value, Granted |  |  |  |  |  | $ 155,032 |  |  |  |  |
Restricted Stock Units (RSUs) [Member] | 2016 Stock Incentive Plan [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares |  |  |  |  |  | $ 75.34 |  |  |  |  |
Restricted Stock Units (RSUs) [Member] | 2016 Stock Incentive Plan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares |  |  |  |  |  | $ 81.53 |  |  |  |  |
Deferred Cash Compensation Program [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation, Vesting Period (in years) |  |  |  |  |  | 4 years |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount |  |  |  |  |  | $ 179,705 |  |  |  |  |
Restricted Cash Award [Member] | Board of Directors Chairman [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Retirement Notice Requirement |  |  |  |  | 6 months |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount |  |  |  |  | $ 35,000 |  |  |  |  |  |
Deferred Compensation Arrangement With Individual Cash Award Tranche One Vesting Amount |  |  |  |  | 11,000 |  |  |  |  |  |
Deferred Compensation Arrangement With Individual Cash Award Tranche Two Vesting Amount |  |  |  |  | 6,000 |  |  |  |  |  |
Deferred Compensation Arrangement With Individual Cash Award Tranche Three Vesting Amount |  |  |  |  | $ 6,000 |  |  |  |  |  |
Awards Vesting Period | Number_Of_Anniversaries |  |  |  |  | 3 |  |  |  |  |  |
Restricted Cash Award [Member] | Minimum [Member] | Board of Directors Chairman [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount |  |  |  |  | $ 8,750 |  |  |  |  |  |
Restricted Cash Award [Member] | Maximum [Member] | Board of Directors Chairman [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount |  |  |  |  | $ 35,000 |  |  |  |  |  |
Other Deferred Cash [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount |  |  |  |  |  |  |  |  |  |  | $ 29,500
Awards Vesting Period | Installments |  |  |  |  |  | 5 |  |  |  |  |
Long Term Incentive Plan [Member] | 2017 Long-term Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Compensation Cost Not Yet Recognized |  |  |  |  |  | $ 45,423 |  |  |  |  |
Employee Loans [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement Compensation Expense |  |  |  |  |  | 4,434 | 3,605 |  |  |  |
Deferred Compensation Arrangement with Individual, Recorded Liability |  |  |  |  |  | $ 39,288 |  |  |  |  |
Requisite Service Period (in years) |  |  |  |  |  | 1 year |  |  |  |  |
Maximum Contractual Term (in years) |  |  |  |  |  | 5 years |  |  |  |  |
Evercore ISI [Member] | Class H LP Interests [Member] | Acquisition Related [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Units Outstanding (in units) | shares |  |  |  | 4,148,000 |  |  |  |  |  |  |
Evercore ISI [Member] | Class J LP Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common Stock, Number of Votes | vote |  |  |  | 1 |  |  |  |  |  |  |
Evercore ISI [Member] | Class J LP Units [Member] | Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  |  | 1 |  |  |  |  |  |  |
Evercore ISI [Member] | Class J LP Units [Member] | Acquisition Related [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Compensation Expense |  |  |  |  |  | $ 1,067 | 4,049 |  |  |  |
Evercore ISI [Member] | Vested LP Units [Member] | Class J LP Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Grant of LP Units (in units) | shares |  |  |  | 1,012,000 |  |  |  |  |  |  |
Evercore ISI [Member] | Vested LP Units [Member] | Class J LP Units [Member] | Subject to Continued Employment [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Grant of LP Units (in units) | shares |  |  |  | 963,000 |  |  |  |  |  |  |
Evercore ISI [Member] | Unvested LP Units [Member] | Class J LP Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Grant of LP Units (in units) | shares |  |  |  | 938,000 |  |  |  |  |  |  |
Separation Benefits and Stay Arrangements [Member] | Forecast [Member] | Special Charges [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  |  |  | $ 25,646 |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  |  | 1,002 |  |  |  |
Restricted Stock Units (RSUs) [Member] | Special Charges [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  | 5,529 |  |  | $ 1,272 |  |
Restricted Stock Units (RSUs) [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted Stock Units Related to Restructuring | shares |  |  |  |  |  |  |  | 113,000 |  |  |
Restricted Stock Units (RSUs) [Member] | Forecast [Member] | Special Charges [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  |  |  | $ 8,367 |  |  |
Deferred Compensation [Member] | Forecast [Member] | Special Charges [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  |  |  | $ 11,019 |  |  |
Cash and Deferred Cash Compensation [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  |  | $ 2,273 |  |  |  |
Cash and Deferred Cash Compensation [Member] | Special Charges [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  |  |  |  |  | $ 16,431 |  |  | $ 1,578 |  |

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