Equity Incentive Plans - Schedule of Stock Option Plan Activity (Parenthetical) (Details)	3 Months Ended
Mar. 31, 2016 shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of canceled options excluded	29,634

Options forfeited from legacy share based compensation plans that are excluded from returning back to the current share based compensation plan available for future grant.

No definition available.

Name:	adro_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExcluded
Namespace Prefix:	adro_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration