Contingencies and commitments (KANJINTI Patent Litigation) (Details) - patent |
Sep. 04, 2019 |
Jul. 24, 2019 |
Jan. 17, 2019 |
Nov. 07, 2018 |
Jul. 19, 2018 |
Jun. 21, 2018 |
|---|---|---|---|---|---|---|
| KANJINTI Patent Litigation | ||||||
| Loss Contingencies [Line Items] | ||||||
| Loss contingency, patents allegedly infringed | 4 | 8 | 1 | 10 | 18 | 37 |