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Evercore Partners Inc. Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
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Feb. 01, 2016 | Jun. 30, 2014 | May. 31, 2014 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared per share of Class A common stock (in dollars per share) |  |  |  | $ 0.31 | $ 0.28 | $ 0.28 | $ 0.28 | $ 0.28 | $ 0.25 | $ 0.25 | $ 0.25 |  | $ 1.15 | $ 1.03 | $ 0.91
Dividends per share, cash paid (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.15 | $ 1.03 |
Declared and paid dividends |  |  |  |  |  |  |  |  |  |  |  |  | $ 46,326 | $ 38,754 |
Shares purchased for the net settlement of stock-based compensation awards (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 996 | 1,661 |
Treasury Stock Acquired, Average Cost Per Share |  |  |  |  |  |  |  |  |  |  |  |  | $ 50.92 | $ 53.61 |
Increase in Treasury Stock |  |  |  |  |  |  |  |  |  |  |  |  | $ 283,283 | $ 142,850 |
Decrease In Treasury Stock |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,101 |
LP Units exchanged by employees (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 586 | 1,421 |
Increase in common stock |  |  |  |  |  |  |  |  |  |  |  |  | $ 6 | $ 14 |
Adjustments to Additional Paid in Capital |  |  |  |  |  |  |  |  |  |  |  |  | 12,833 | 16,254 |
L P Units Purchased Or Converted Into Class Common Stock Value (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 26 |  |
Accumulated Unrealized Gain (Loss) on Marketable Securities |  |  |  | $ (4,764) |  |  |  |  |  |  |  |  | (4,764) |  |
Foreign Currency Translation Adjustment Gain (Loss), net |  |  |  | $ (29,775) |  |  |  |  |  |  |  |  | (29,775) |  |
Income (Loss) from Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | $ (4,260)
Provision (Benefit) for Income Taxes |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | (1,470)
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock acquired, market value per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 47.56 | $ 45.82 |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock acquired, market value per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | 59.02 | 61.82 |
Share Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share |  |  |  |  |  |  |  |  |  |  |  |  | $ 51.82 | $ 50.75 |
Stock repurchase program number of shares purchased (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 4,471 | 1,046 |
Share Repurchase Program [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock acquired, market value per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 47.10 | $ 47.99 |
Share Repurchase Program [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock acquired, market value per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 57.03 | $ 55.00 |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends payable, date declared | Feb. 01, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared per share of Class A common stock (in dollars per share) | $ 0.31 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend record date | Feb. 26, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend payment date | Mar. 11, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
LP Unit Purchases [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital |  |  |  |  |  |  |  |  |  |  |  |  | $ (770) |  |
Noncontrolling Interest, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  |  |  | $ (353) |  |
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 409
Provision (Benefit) for Income Taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 135
Consolidation Foreign Exchange Translation Loss [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,683)
Provision (Benefit) for Income Taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (573)
G5 Evercore [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares |  | 131 |  |  |  |  |  |  |  |  |  |  |  | 131 |
Evercore Wealth Management [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares |  |  | 119 |  |  |  |  |  |  |  |  |  |  | 119 |
Decrease In Treasury Stock |  |  |  |  |  |  |  |  |  |  |  | $ 3,856 |  |  |
Adjustments to Additional Paid in Capital |  |  |  |  |  |  |  |  |  |  |  | 3,244 |  | $ (4,116) |
Noncontrolling Interest, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 27,477 |  |  |

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