After an award of economic damages, the party responsible for the payment thereof is entitled to and may apply to the court for a reduction of the economic damages to the extent that the economic losses presented to the trier of fact are covered by payment from a collateral source. A “collateral source” payment is any sum from any other source paid or to be paid to cover an economic loss which need not be repaid by the party recovering economic damages, but does not include life insurance, other death or retirement benefits, or any insurance or benefit purchased by the party recovering economic damages.