securities are reported at fair value. Unrealized gains and losses related to changes in the fair value of securities are recognized in accumulated other comprehensive income, net of tax, in the Company’s Consolidated Balance Sheets. Changes in the fair value of available-for-sale securities impact the Company’s net income only when such securities are sold or an other-than- temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security’s cost basis. The Company regularly reviews its investment portfolio to determine if any security is other-than-temporarily impaired, which would require the Company to record an impairment charge in the period any such determination is made. In making this judgment, the Company evaluates, among other things, the duration and extent to which the fair value of a security is less than its cost, the financial condition of the issuer and any changes thereto, and the Company’s intent to sell, or whether it is more likely than not it will be required to sell, the security before recovery of the its amortized cost basis. The Company’s assessment on whether a security is other-than-temporarily impaired, could change in the future due to new developments or changes in assumptions related to any particular security. 

Inventory Valuation and Inventory Purchase Commitments 

The Company must order components for its products and build inventory in advance of product shipments. The Company records a write-down for inventories of components and products, including third-party products held for resale, which have become obsolete or are in excess of anticipated demand or net realizable value. The Company performs a detailed review of inventory each fiscal quarter that considers multiple factors including demand forecasts, product life cycle status, product development plans, current sales levels, and component cost trends. The industries in which the Company competes are subject to a rapid and unpredictable pace of product and component obsolescence and demand changes. If future demand or market conditions for the Company’s products are less favorable than forecasted or if unforeseen technological changes negatively impact the utility of component inventory, the Company may be required to record additional write-downs, which would negatively affect its results of operations in the period when the write-downs were recorded. 

The Company records accruals for estimated cancellation fees related to component orders that have been cancelled or are expected to be cancelled. Consistent with industry practice, the Company acquires components through a combination of purchase orders, supplier contracts, and open orders based on projected demand information. These commitments typically cover the Company’s requirements for periods up to 150 days. If there is an abrupt and substantial decline in demand for one or more of the Company’s products or an unanticipated change in technological requirements for any of the Company’s products, the Company may be required to record additional accruals for cancellation fees that would negatively affect its results