Their website lists their compensation elements. Here is what I would expect:
1. Housing--- Around USD 3000-3500/month
2. Schooling-- For 3 kids-- Probably will cover 80%
3. Insurance-paid
4. Vacation- 30-45 days paid
5. Annual ticket--paid for family
6. End of service benefits-- per UAE law-- 20 days pay per years worked (upto 5 years). After that 30 days per each year worked.
7. Base Salary-- I expect they would pay F/O's around 7,000-8000 USD per month and Captains between 10,000-12,000 USD. Just a guess based on what others are paying in the region and on the NG.
Hope this helps.