| Component: (Network and Table) | |
|---|---|
| Network | 100350 - Disclosure - Commitments and Contingencies (Tables) (http://www.alderbio.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001423824 (http://www.sec.gov/CIK) |
| Commitments And Contingencies Disclosure [Abstract] | Period [Axis] | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-01-01 - 2016-12-31 | |||||||||||||||||||||||||||||||||||||||||||||
Commitments And Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||
Future Aggregate Minimum Payments Under Noncancelable Operating Leases | Future aggregate minimum payments under noncancelable operating leases as of the date indicated are as follows:
| ||||||||||||||||||||||||||||||||||||||||||||