How to handle an insurance reimbursement

[Bob Alexander]

Yesterday in my mail I have received a check from my insurance company 
as a reimbursement of the expense of replacing my car's windshield.

The fact that is puzzling to me is that the expense of replacing the 
windshield and also the insurance premium (dunno if it's the right term 
... I mean what I pay to the insurance to be covered), in time are 
BEFORE I started this accounting.

So when I go to the bank and give them the check I know that I should 
enter that on my gnucash checking account but I am confused on which 
other account to balance it on.

I feel it's not an "income", but what ?

As always thanks for your warm support,
Bob