Share capital - Capital increase (Details) - EUR (€)
|
12 Months Ended |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
| Disclosure of classes of share capital [line items] |
|
|
|
| Balance at beginning of period, shares |
54,465,421
|
50,936,778
|
46,256,078
|
| Balance at beginning of period |
€ 1,214,249,000
|
€ 1,011,983,000
|
€ 758,701,000
|
| Share capital |
287,282,000
|
236,540,000
|
233,414,000
|
| Net issue of equity |
960,087,000
|
296,188,000
|
363,924,000
|
| Share premium |
2,703,583,000
|
1,277,780,000
|
993,025,000
|
| Exercise of warrants |
€ 17,167,000
|
€ 7,657,000
|
€ 5,288,000
|
| Average exercise price warrants |
€ 22.8
|
€ 13.5
|
€ 14.4
|
| Balance at end of period, shares |
64,666,802
|
54,465,421
|
50,936,778
|
| Balance at end of period |
€ 2,875,658,000
|
€ 1,214,249,000
|
€ 1,011,983,000
|
| Par value of shares |
€ 5.41
|
|
|
| April 6, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
|
247,070
|
| Average exercise price warrants |
|
|
€ 16.33
|
| Closing share price on date of capital increase |
|
|
€ 84.60
|
| June 20, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
|
52,030
|
| Average exercise price warrants |
|
|
€ 12.14
|
| Closing share price on date of capital increase |
|
|
€ 70.66
|
| September 21, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
|
28,100
|
| Average exercise price warrants |
|
|
€ 9.55
|
| Closing share price on date of capital increase |
|
|
€ 84.62
|
| November 23, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
|
41,000
|
| Average exercise price warrants |
|
|
€ 8.63
|
| Closing share price on date of capital increase |
|
|
€ 77.53
|
| March 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
298,184
|
|
| Average exercise price warrants |
|
€ 13.16
|
|
| Closing share price on date of capital increase |
|
€ 83.72
|
|
| June 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
102,801
|
|
| Average exercise price warrants |
|
€ 13.01
|
|
| Closing share price on date of capital increase |
|
€ 85.00
|
|
| October 03, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
135,485
|
|
| Average exercise price warrants |
|
€ 14.86
|
|
| Closing share price on date of capital increase |
|
€ 94.32
|
|
| November 23, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
|
30,800
|
|
| Average exercise price warrants |
|
€ 12.40
|
|
| Closing share price on date of capital increase |
|
€ 88.90
|
|
| March 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
149,370
|
|
|
| Average exercise price warrants |
€ 23.30
|
|
|
| Closing share price on date of capital increase |
€ 90.32
|
|
|
| June 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
208,310
|
|
|
| Average exercise price warrants |
€ 20.76
|
|
|
| Closing share price on date of capital increase |
€ 113.55
|
|
|
| August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Issue of shares |
6,828,985
|
|
|
| September 19, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
301,745
|
|
|
| Average exercise price warrants |
€ 22.12
|
|
|
| Closing share price on date of capital increase |
€ 145.25
|
|
|
| November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
2,617,791
|
|
|
| Average exercise price warrants |
€ 140.59
|
|
|
| Closing share price on date of capital increase |
€ 170.75
|
|
|
| November 25, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
95,180
|
|
|
| Average exercise price warrants |
€ 28.23
|
|
|
| Closing share price on date of capital increase |
€ 172.95
|
|
|
| Share capital. |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Balance at beginning of period |
€ 236,540,000
|
€ 233,414,000
|
€ 223,928,000
|
| Net issue of equity |
36,945,000
|
16,021,000
|
23,331,000
|
| Exercise of warrants |
4,082,000
|
3,069,000
|
1,992,000
|
| Balance at end of period |
287,282,000
|
236,540,000
|
233,414,000
|
| Share capital. | April 6, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
1,337,000
|
| Share capital. | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Underwriter discounts and offering expenses (paid) |
|
|
(15,790,000)
|
| Offering expenses still to be paid |
|
|
(47,000)
|
| Share capital. | June 20, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
281,000
|
| Share capital. | September 21, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
152,000
|
| Share capital. | November 23, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
222,000
|
| Share capital. | March 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
1,613,000
|
|
| Share capital. | June 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
556,000
|
|
| Share capital. | October 03, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
733,000
|
|
| Share capital. | November 23, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
167,000
|
|
| Share capital. | March 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
808,000
|
|
|
| Share capital. | June 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
1,127,000
|
|
|
| Share capital. | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
32,498,000
|
|
|
| Underwriter discounts and offering expenses (paid) |
(4,447,000)
|
|
|
| Share capital. | September 19, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
1,632,000
|
|
|
| Share capital. | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
14,162,000
|
|
|
| Share capital. | November 25, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
515,000
|
|
|
| Share premium account |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Balance at beginning of period |
1,277,780,000
|
993,025,000
|
649,135,000
|
| Net issue of equity |
923,142,000
|
280,167,000
|
340,593,000
|
| Exercise of warrants |
13,085,000
|
4,588,000
|
3,296,000
|
| Balance at end of period |
2,703,583,000
|
1,277,780,000
|
993,025,000
|
| Share premium account | April 6, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
2,697,000
|
| Share premium account | June 20, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
350,000
|
| Share premium account | September 21, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
117,000
|
| Share premium account | November 23, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
132,000
|
| Share premium account | March 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
2,311,000
|
|
| Share premium account | June 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
781,000
|
|
| Share premium account | October 03, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
1,281,000
|
|
| Share premium account | November 23, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
215,000
|
|
| Share premium account | March 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
2,673,000
|
|
|
| Share premium account | June 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
3,198,000
|
|
|
| Share premium account | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
979,891,000
|
|
|
| Derecognition of Financial Liability |
56,749,000
|
|
|
| Share premium account | September 19, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
5,043,000
|
|
|
| Share premium account | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
432,826,000
|
|
|
| Derecognition of Financial Liability |
78,953,000
|
|
|
| Share premium account | November 25, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
2,172,000
|
|
|
| Share capital and share premium |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Balance at beginning of period |
1,514,320,000
|
1,226,439,000
|
873,063,000
|
| Balance at end of period |
2,911,912,000
|
1,514,320,000
|
1,226,439,000
|
| Share capital and share premium | April 6, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
4,034,000
|
| Share capital and share premium | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Underwriter discounts and offering expenses (paid) |
|
|
(15,790,000)
|
| Offering expenses still to be paid |
|
|
(47,000)
|
| Share capital and share premium | June 20, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
632,000
|
| Share capital and share premium | September 21, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
269,000
|
| Share capital and share premium | November 23, 2017 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
|
€ 354,000
|
| Share capital and share premium | March 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
3,924,000
|
|
| Share capital and share premium | June 20, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
1,337,000
|
|
| Share capital and share premium | October 03, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
2,014,000
|
|
| Share capital and share premium | November 23, 2018 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
|
€ 382,000
|
|
| Share capital and share premium | March 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
3,481,000
|
|
|
| Share capital and share premium | June 20, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
4,325,000
|
|
|
| Share capital and share premium | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
1,012,389,000
|
|
|
| Underwriter discounts and offering expenses (paid) |
(4,447,000)
|
|
|
| Derecognition of Financial Liability |
56,749,000
|
|
|
| Share capital and share premium | September 19, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
6,675,000
|
|
|
| Share capital and share premium | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
368,035,000
|
|
|
| Share capital and share premium | November 25, 2019 : exercise of warrants |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
€ 2,687,000
|
|
|
| Ordinary Shares |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Par value of shares |
€ 5.41
|
|
|
| Ordinary Shares | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Issue of shares |
6,828,985
|
|
|
| Closing share price on date of capital increase |
€ 148.90
|
|
|
| Ordinary Shares | Share capital. | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
€ 36,945,000
|
|
|
| Ordinary Shares | Share premium account | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
923,142,000
|
|
|
| Ordinary Shares | Share capital and share premium | August 23, 2019 : share subscription by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
€ 960,087,000
|
|
|
| American Depositary Receipts |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Issue of shares |
|
2,961,373
|
|
| American Depositary Receipts | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Issue of shares |
|
|
4,312,500
|
| Closing share price on date of capital increase |
|
|
€ 81.34
|
| American Depositary Receipts | Share capital. |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
€ 16,021,000
|
|
| American Depositary Receipts | Share capital. | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
|
€ 23,331,000
|
| American Depositary Receipts | Share premium account |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
280,167,000
|
|
| American Depositary Receipts | Share premium account | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
|
340,593,000
|
| American Depositary Receipts | Share capital and share premium |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
€ 296,188,000
|
|
| American Depositary Receipts | Share capital and share premium | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
|
€ 363,924,000
|
| U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Issue of shares |
|
2,961,373
|
|
| Closing share price on date of capital increase |
|
€ 99.68
|
|
| U.S. public offering | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Issue of shares |
|
|
4,312,500
|
| U.S. public offering | Share capital. |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
€ 57,000
|
|
| Underwriter discounts and offering expenses (paid) |
|
(15,964,000)
|
|
| U.S. public offering | Share capital. | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
|
€ 7,494,000
|
| U.S. public offering | Share premium account |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
280,167,000
|
|
| U.S. public offering | Share premium account | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
|
340,593,000
|
| U.S. public offering | Share capital and share premium |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
280,224,000
|
|
| Underwriter discounts and offering expenses (paid) |
|
€ (15,964,000)
|
|
| U.S. public offering | Share capital and share premium | April 21, 2017 : U.S. public offering |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Net issue of equity |
|
|
€ 348,087,000
|
| Warrants | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants, shares |
2,617,791
|
|
|
| Warrants | Share capital. | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
€ 14,162,000
|
|
|
| Warrants | Share premium account | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
353,873,000
|
|
|
| Warrants | Share capital and share premium | November 6, 2019 : exercise of warrant A by Gilead |
|
|
|
| Disclosure of classes of share capital [line items] |
|
|
|
| Exercise of warrants |
€ 368,035,000
|
|
|