How to report insurance reimbursement recieved one year for a theft loss in a prior year?

We suffered property damage from hurricane Irma in 2017.  However, insurance settlement took considerable time and we did not receive reimbursement until well in to 2018.  Do I report the loss in 2017 the year it occurred and the reimbursement in 2018?  Or do I file an amended return for 2017?