It's the oneworld explorer 4 continent RTW fare, booked in business [D] class. 'DONE4' is the fare basis code/type that the agent uses to book it
Check out this thread for chatter about the fares and how to plan and book:
[URL unfurl="true"]https://www.australianfrequentflyer.com.au/community/threads/oneworld-award-132-4k-249-6k-318k-455k-planning-the-definitive-thread.8228/[/URL]
EDIT: Sorry - the thread above is about how to book the award version/s of the same... still, gives you some insights 
Cheers,
Matt.
