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Contingencies and commitments (Sensipar ANDA Patent Litigation) (Details) - lawsuit | 1 Months Ended
--- | ---
Dec. 31, 2017 | Jun. 30, 2017 | Feb. 28, 2017 | Sep. 30, 2016
Sensipar (cinacalcet) Patent Litigation [Member] |  |  |  |
Gain Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | 4 | 4 |  | 14
Amgen Inc. v. Aurobindo Pharma Ltd. et al [Member] |  |  |  |
Gain Contingencies [Line Items] |  |  |  |
Number of lawsuits consolidated |  | 1 | 14 |
Amgen Inc. v. Alkem et al [Member] |  |  |  |
Gain Contingencies [Line Items] |  |  |  |
Number of lawsuits consolidated |  | 3 |  |

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- Details
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- Details
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