Final exit and re entry in ksa

Dear sir.
    Now a day I am working in Saudi Arabia. I want to go to final exit on Aug 2017 with current employer and re entry on Oct 2017 with new employer.
My iquma will be expire on 12 Jan 2018.
Can you give me suggestion what kind document is required for re entry in ksa.

As I know
1. Iquma will be hand over on airport to government authority.
2. Electronic final exit paper with immigration stap.

I have confusion kindly clear my dought.




Thank and regards.
Kamran

Sir.
I want to go final exit on 28 Aug 2017 and re entry on 20 Oct 2017. Can you give me suggesation what kind of document required for re entry