Temporary investments in debt securities for which management has a positive intent to hold to maturity are carried in the balance sheet at amortized cost. Amortized cost implies that premiums or discounts, which arose when the purchase price of the debt security differed from face value. are being amortized over the remaining life of the security. Premiums and discounts for debt securities having short terms for example, U.S. treasury notes are general]y not amortized for materiality reasons.