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Fair value measurement - BMS collaboration (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions |  |  | 2 Months Ended | 4 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Aug. 07, 2015 | Jun. 12, 2015 | Jun. 12, 2015 | Aug. 07, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Apr. 06, 2015
Collaboration arrangements |  |  |  |  |  |  |
Proceeds from issuance of shares to collaboration partner |  |  |  |  |  | $ 75,493 |
BMS Warrants |  |  |  |  |  |  |
Collaboration arrangements |  |  |  |  |  |  |
Sale of stock (in dollars per share) | $ 29.67 |  |  | $ 29.67 |  |  |
Number of trading days used to calculate Volume Weighted Average Price ("VWAP") |  |  |  |  | 20 days |  |
Number of days prior to purchase or exercise used to calculate Volume Weighted Average Price ("VWAP") |  |  |  |  | 5 days |  |
Exercise price in respect of each warrant |  |  |  |  | $ 33.84 |  |
Compounded annual growth rate used to determine fair value of exercise price |  |  |  |  | 10.00% |  |
Gain (Loss) recorded due to changes in fair value of derivative asset |  |  | $ (7,300) | $ (300) |  |  |
uniQure N.V. | Collaboration Agreement Approval ("First Closing") | BMS |  |  |  |  |  |  |
Collaboration arrangements |  |  |  |  |  |  |
Ownership percentage required per agreement |  |  |  |  | 4.90% |  |
Sale of stock (in dollars per share) |  |  |  |  | $ 33.84 |  |
uniQure N.V. | Selection Of Three Additional Collaboration Agreement Targets ("Second Closing") | BMS |  |  |  |  |  |  |
Collaboration arrangements |  |  |  |  |  |  |
Ownership percentage required per agreement |  |  |  |  | 9.90% |  |
Sale of stock (in dollars per share) | $ 29.67 |  |  | $ 29.67 |  |  |
Sale of stock - Percent of Volume Weighted Average Price ("VWAP") |  |  |  |  | 110.00% |  |
Number of trading days used to calculate Volume Weighted Average Price ("VWAP") |  |  |  |  | 20 days |  |
Number of days prior to purchase or exercise used to calculate Volume Weighted Average Price ("VWAP") |  |  |  |  | 5 days |  |
uniQure N.V. | BMS Warrants | First Six New Targets Or Designation Of Sixth Target | BMS |  |  |  |  |  |  |
Collaboration arrangements |  |  |  |  |  |  |
Ownership percentage required per agreement |  |  |  |  | 14.90% |  |
uniQure N.V. | BMS Warrants | First Nine New Targets Or Designation Of Ninth Target | BMS |  |  |  |  |  |  |
Collaboration arrangements |  |  |  |  |  |  |
Ownership percentage required per agreement |  |  |  |  | 19.90% |  |
Collaboration arrangement | BMS |  |  |  |  |  |  |
Collaboration arrangements |  |  |  |  |  |  |
Fair value of derivative asset |  |  |  |  |  |  | $ 10,100
Number of shares issued to collaboration partner | 1.3 | 1.1 |  |  |  |  |
Proceeds from issuance of shares to collaboration partner | $ 37,900 | $ 37,600 |  |  |  |  |
Extinguishment of derivative upon issuance of shares to collaboration partner | 1,400 | 5,000 |  |  |  |  |
Value of shares issued to collaboration partner | $ 39,300 | $ 32,600 |  |  |  |  |
Market price per share | $ 23.64 | $ 29.37 | $ 29.37 | $ 23.64 |  |  |

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