Marketable Securities (Policy)

12 Months Ended

Dec. 31, 2017

Marketable Securities [Abstract]

Marketable Securities

During the year ended December 31, 2017, we purchased marketable debt securities, which are classified as available-for-sale and carried at fair value in the accompanying consolidated balance sheets on a trade date basis. We have classified our investments with maturities beyond one year as short-term, based on their highly liquid nature and because such marketable securities represent the investment of cash that is available for current operations. Unrealized holding gains and losses are deferred within accumulated other comprehensive income (“AOCI”), net of applicable taxes, except when an impairment is determined to be other-than-temporary or the security is divested prior to maturity. Within the accompanying consolidated statements of operations, interest earned and amortization of premiums or discounts on marketable securities are included in interest income, and realized gains and losses on the sale of our marketable securities are included in other income.