Commitments and Contingencies - Schedule of Supplemental Disclosure Cash Flow Related to Operating Leases (Details) $ in Thousands	9 Months Ended
Sep. 30, 2019 USD ($)
Cash flows from operating activities
Cash paid for amounts included in the measurement of lease liabilities	$ 4,106

Cash paid for amounts included in the measurement of lease liabilities.

No definition available.

Name:	adro_CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities
Namespace Prefix:	adro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration