Shareholders' Equity - (Details) - Cowen [Member] - At-the-Market Equity Offering Program[Member] - USD ($) $ in Millions	Jun. 30, 2023	Sep. 19, 2022
Shareholders' Equity [Abstract]
Common shares aggregate offering price authorized		$ 400.0
Common shares aggregate offering price authorized, remaining capacity available	$ 400.0

The common shares aggregate offering price authorized remaining capacity to issue under equity offering program.

No definition available.

Name:	roiv_CommonSharesAggregateOfferingPriceAuthorizedRemainingCapacityAvailable
Namespace Prefix:	roiv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant