Financial Instruments, Derivative Instruments and Hedging

12 Months Ended

Dec. 31, 2018

Financial Instruments, Derivative Instruments and Hedging [Abstract]

Financial Instruments, Derivative Instruments and Hedging

12. Financial Instruments, Derivative Instruments and Hedging

Financial Instruments

The carrying amount of cash equivalents approximates fair value because of the short maturity of those instruments.

Foreign Currency

We are subject to the risks associated with fluctuations in foreign currency exchange rates. To limit this foreign exchange rate exposure, we attempt to denominate all contracts in U.S. dollars. Where appropriate, derivatives are used to minimize the risk of foreign exchange rate fluctuations to operating results and cash flows. We do not use derivative instruments for trading or speculative purposes.

Derivatives and Hedging Transactions

There were no derivative instruments as of December 31, 2018 and 2017.